Reworked inhertiance hierarchy for PublicationItems, CreateForms for

PublicationItems

sci-publications/src/main/java/com/arsdigita/cms/contenttypes/ui/AbstractPublicationCreateForm.java

@@ -0,0 +1,61 @@
+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package com.arsdigita.cms.contenttypes.ui;
+
+import com.arsdigita.bebop.FormData;
+import com.arsdigita.bebop.PageState;
+import com.arsdigita.bebop.parameters.StringParameter;
+import com.arsdigita.cms.ItemSelectionModel;
+import com.arsdigita.cms.ui.authoring.CreationSelector;
+import com.arsdigita.cms.ui.authoring.PageCreateForm;
+
+import org.librecms.contentsection.ContentItemInitializer;
+import org.scientificcms.publications.Publication;
+import org.scientificcms.publications.contenttypes.PublicationItem;
+
+import java.util.Locale;
+
+/**
+ *
+ * @author <a href="mailto:jens.pelzetter@googlemail.com">Jens Pelzetter</a>
+ * @param <P>
+ * @param <T>
+ */
+public abstract class AbstractPublicationCreateForm<P extends Publication, T extends PublicationItem<P>>
+    extends PageCreateForm {
+
+    public AbstractPublicationCreateForm(
+        final ItemSelectionModel itemModel,
+        final CreationSelector creationSelector,
+        final StringParameter selectedLanguageParam
+    ) {
+        super(itemModel, creationSelector, selectedLanguageParam);
+    }
+
+    @Override
+    @SuppressWarnings("unchecked")
+    protected ContentItemInitializer<?> getItemInitializer(
+        final FormData data, final PageState state) {
+
+        return item -> ((T) item).setPublication(
+            createPublication(data)
+        );
+    }
+
+    protected P createPublication(final FormData data) {
+
+        final Locale locale = new Locale((String) data.get(LANGUAGE));
+        final String title = (String) data.get(TITLE);
+
+        final P publication = createPublication();
+        publication.getTitle().addValue(locale, title);
+
+        return publication;
+    }
+
+    protected abstract P createPublication();
+
+}

sci-publications/src/main/java/com/arsdigita/cms/contenttypes/ui/ArticleInCollectedVolumeCreateForm.java

@@ -0,0 +1,35 @@
+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package com.arsdigita.cms.contenttypes.ui;
+
+import com.arsdigita.bebop.parameters.StringParameter;
+import com.arsdigita.cms.ItemSelectionModel;
+import com.arsdigita.cms.ui.authoring.CreationSelector;
+
+import org.scientificcms.publications.ArticleInCollectedVolume;
+import org.scientificcms.publications.contenttypes.ArticleInCollectedVolumeItem;
+
+/**
+ *
+ * @author <a href="mailto:jens.pelzetter@googlemail.com">Jens Pelzetter</a>
+ */
+public class ArticleInCollectedVolumeCreateForm
+    extends AbstractPublicationCreateForm<ArticleInCollectedVolume, ArticleInCollectedVolumeItem> {
+
+    public ArticleInCollectedVolumeCreateForm(
+        final ItemSelectionModel itemModel,
+        final CreationSelector creationSelector,
+        final StringParameter selectedLanguageParam
+    ) {
+        super(itemModel, creationSelector, selectedLanguageParam);
+    }
+
+    @Override
+    protected ArticleInCollectedVolume createPublication() {
+        return new ArticleInCollectedVolume();
+    }
+
+}

sci-publications/src/main/java/com/arsdigita/cms/contenttypes/ui/ArticleInJournalCreateForm.java

@@ -0,0 +1,35 @@
+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package com.arsdigita.cms.contenttypes.ui;
+
+import com.arsdigita.bebop.parameters.StringParameter;
+import com.arsdigita.cms.ItemSelectionModel;
+import com.arsdigita.cms.ui.authoring.CreationSelector;
+
+import org.scientificcms.publications.ArticleInJournal;
+import org.scientificcms.publications.contenttypes.ArticleInJournalItem;
+
+/**
+ *
+ * @author <a href="mailto:jens.pelzetter@googlemail.com">Jens Pelzetter</a>
+ */
+public class ArticleInJournalCreateForm
+    extends AbstractPublicationCreateForm<ArticleInJournal, ArticleInJournalItem> {
+
+    public ArticleInJournalCreateForm(
+        final ItemSelectionModel itemModel,
+        final CreationSelector creationSelector,
+        final StringParameter selectedLanguageParam
+    ) {
+        super(itemModel, creationSelector, selectedLanguageParam);
+    }
+
+    @Override
+    protected ArticleInJournal createPublication() {
+        return new ArticleInJournal();
+    }
+
+}

sci-publications/src/main/java/com/arsdigita/cms/contenttypes/ui/CollectedVolumeCreateForm.java

@@ -0,0 +1,37 @@
+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package com.arsdigita.cms.contenttypes.ui;
+
+import com.arsdigita.bebop.parameters.StringParameter;
+import com.arsdigita.cms.ItemSelectionModel;
+import com.arsdigita.cms.ui.authoring.CreationSelector;
+
+import org.scientificcms.publications.CollectedVolume;
+import org.scientificcms.publications.Publication;
+import org.scientificcms.publications.contenttypes.CollectedVolumeItem;
+import org.scientificcms.publications.contenttypes.PublicationItem;
+
+/**
+ *
+ * @author <a href="mailto:jens.pelzetter@googlemail.com">Jens Pelzetter</a>
+ */
+public class CollectedVolumeCreateForm
+    extends AbstractPublicationCreateForm<CollectedVolume, CollectedVolumeItem> {
+
+    public CollectedVolumeCreateForm(
+        final ItemSelectionModel itemModel,
+        final CreationSelector creationSelector,
+        final StringParameter selectedLanguageParam
+    ) {
+        super(itemModel, creationSelector, selectedLanguageParam);
+    }
+
+    @Override
+    protected CollectedVolume createPublication() {
+        return new CollectedVolume();
+    }
+
+}

sci-publications/src/main/java/com/arsdigita/cms/contenttypes/ui/ExpertiseCreateForm.java

@@ -0,0 +1,33 @@
+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package com.arsdigita.cms.contenttypes.ui;
+
+import com.arsdigita.bebop.parameters.StringParameter;
+import com.arsdigita.cms.ItemSelectionModel;
+import com.arsdigita.cms.ui.authoring.CreationSelector;
+
+import org.scientificcms.publications.Expertise;
+import org.scientificcms.publications.contenttypes.ExpertiseItem;
+
+/**
+ *
+ * @author <a href="mailto:jens.pelzetter@googlemail.com">Jens Pelzetter</a>
+ */
+public class ExpertiseCreateForm 
+    extends AbstractPublicationCreateForm<Expertise, ExpertiseItem>{
+
+    public ExpertiseCreateForm(final ItemSelectionModel itemModel,
+                               final CreationSelector creationSelector,
+                               final StringParameter selectedLanguageParam) {
+        super(itemModel, creationSelector, selectedLanguageParam);
+    }
+
+    @Override
+    protected Expertise createPublication() {
+        return new Expertise();
+    }
+    
+}

sci-publications/src/main/java/com/arsdigita/cms/contenttypes/ui/GreyLiteratureCreateForm.java

@@ -0,0 +1,35 @@
+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package com.arsdigita.cms.contenttypes.ui;
+
+import com.arsdigita.bebop.parameters.StringParameter;
+import com.arsdigita.cms.ItemSelectionModel;
+import com.arsdigita.cms.ui.authoring.CreationSelector;
+
+import org.scientificcms.publications.GreyLiterature;
+import org.scientificcms.publications.contenttypes.GreyLiteratureItem;
+
+/**
+ *
+ * @author <a href="mailto:jens.pelzetter@googlemail.com">Jens Pelzetter</a>
+ */
+public class GreyLiteratureCreateForm
+    extends AbstractPublicationCreateForm<GreyLiterature, GreyLiteratureItem> {
+
+    public GreyLiteratureCreateForm(
+        final ItemSelectionModel itemModel,
+        final CreationSelector creationSelector,
+        final StringParameter selectedLanguageParam
+    ) {
+        super(itemModel, creationSelector, selectedLanguageParam);
+    }
+
+    @Override
+    protected GreyLiterature createPublication() {
+        return new GreyLiterature();
+    }
+
+}

sci-publications/src/main/java/com/arsdigita/cms/contenttypes/ui/InProceedingsCreateForm.java

@@ -0,0 +1,33 @@
+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package com.arsdigita.cms.contenttypes.ui;
+
+import com.arsdigita.bebop.parameters.StringParameter;
+import com.arsdigita.cms.ItemSelectionModel;
+import com.arsdigita.cms.ui.authoring.CreationSelector;
+
+import org.scientificcms.publications.InProceedings;
+import org.scientificcms.publications.contenttypes.InProceedingsItem;
+
+/**
+ *
+ * @author <a href="mailto:jens.pelzetter@googlemail.com">Jens Pelzetter</a>
+ */
+public class InProceedingsCreateForm
+    extends AbstractPublicationCreateForm<InProceedings, InProceedingsItem> {
+
+    public InProceedingsCreateForm(final ItemSelectionModel itemModel,
+                                   final CreationSelector creationSelector,
+                                   final StringParameter selectedLanguageParam) {
+        super(itemModel, creationSelector, selectedLanguageParam);
+    }
+
+    @Override
+    protected InProceedings createPublication() {
+        return new InProceedings();
+    }
+
+}

sci-publications/src/main/java/com/arsdigita/cms/contenttypes/ui/InternetArticleCreateForm.java

@@ -0,0 +1,35 @@
+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package com.arsdigita.cms.contenttypes.ui;
+
+import com.arsdigita.bebop.parameters.StringParameter;
+import com.arsdigita.cms.ItemSelectionModel;
+import com.arsdigita.cms.ui.authoring.CreationSelector;
+
+import org.scientificcms.publications.InternetArticle;
+import org.scientificcms.publications.contenttypes.InternetArticleItem;
+
+/**
+ *
+ * @author <a href="mailto:jens.pelzetter@googlemail.com">Jens Pelzetter</a>
+ */
+public class InternetArticleCreateForm
+    extends AbstractPublicationCreateForm<InternetArticle, InternetArticleItem> {
+
+    public InternetArticleCreateForm(
+        final ItemSelectionModel itemModel,
+        final CreationSelector creationSelector,
+        final StringParameter selectedLanguageParam
+    ) {
+        super(itemModel, creationSelector, selectedLanguageParam);
+    }
+
+    @Override
+    protected InternetArticle createPublication() {
+        return new InternetArticle();
+    }
+
+}

sci-publications/src/main/java/com/arsdigita/cms/contenttypes/ui/MonographCreateForm.java

@@ -0,0 +1,34 @@
+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package com.arsdigita.cms.contenttypes.ui;
+
+import com.arsdigita.bebop.parameters.StringParameter;
+import com.arsdigita.cms.ItemSelectionModel;
+import com.arsdigita.cms.ui.authoring.CreationSelector;
+
+import org.scientificcms.publications.Monograph;
+import org.scientificcms.publications.contenttypes.MonographItem;
+
+
+/**
+ *
+ * @author <a href="mailto:jens.pelzetter@googlemail.com">Jens Pelzetter</a>
+ */
+public class MonographCreateForm
+    extends AbstractPublicationCreateForm<Monograph, MonographItem> {
+
+    public MonographCreateForm(final ItemSelectionModel itemModel,
+                               final CreationSelector creationSelector,
+                               final StringParameter selectedLanguageParam) {
+        super(itemModel, creationSelector, selectedLanguageParam);
+    }
+
+    @Override
+    protected Monograph createPublication() {
+        return new Monograph();
+    }
+
+}

sci-publications/src/main/java/com/arsdigita/cms/contenttypes/ui/ProceedingsCreateForm.java

@@ -0,0 +1,33 @@
+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package com.arsdigita.cms.contenttypes.ui;
+
+import com.arsdigita.bebop.parameters.StringParameter;
+import com.arsdigita.cms.ItemSelectionModel;
+import com.arsdigita.cms.ui.authoring.CreationSelector;
+
+import org.scientificcms.publications.Proceedings;
+import org.scientificcms.publications.contenttypes.ProceedingsItem;
+
+/**
+ *
+ * @author <a href="mailto:jens.pelzetter@googlemail.com">Jens Pelzetter</a>
+ */
+public class ProceedingsCreateForm 
+    extends AbstractPublicationCreateForm<Proceedings, ProceedingsItem>{
+
+    public ProceedingsCreateForm(final ItemSelectionModel itemModel,
+                                 final CreationSelector creationSelector,
+                                 final StringParameter selectedLanguageParam) {
+        super(itemModel, creationSelector, selectedLanguageParam);
+    }
+
+    @Override
+    protected Proceedings createPublication() {
+        return new Proceedings();
+    }
+    
+}

sci-publications/src/main/java/com/arsdigita/cms/contenttypes/ui/TalkCreateForm.java

@@ -0,0 +1,33 @@
+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package com.arsdigita.cms.contenttypes.ui;
+
+import com.arsdigita.bebop.parameters.StringParameter;
+import com.arsdigita.cms.ItemSelectionModel;
+import com.arsdigita.cms.ui.authoring.CreationSelector;
+
+import org.scientificcms.publications.Talk;
+import org.scientificcms.publications.contenttypes.TalkItem;
+
+/**
+ *
+ * @author <a href="mailto:jens.pelzetter@googlemail.com">Jens Pelzetter</a>
+ */
+public class TalkCreateForm
+    extends AbstractPublicationCreateForm<Talk, TalkItem> {
+
+    public TalkCreateForm(final ItemSelectionModel itemModel,
+                          final CreationSelector creationSelector,
+                          final StringParameter selectedLanguageParam) {
+        super(itemModel, creationSelector, selectedLanguageParam);
+    }
+
+    @Override
+    protected Talk createPublication() {
+        return new Talk();
+    }
+
+}

sci-publications/src/main/java/com/arsdigita/cms/contenttypes/ui/WorkingPaperCreateForm.java

@@ -0,0 +1,33 @@
+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package com.arsdigita.cms.contenttypes.ui;
+
+import com.arsdigita.bebop.parameters.StringParameter;
+import com.arsdigita.cms.ItemSelectionModel;
+import com.arsdigita.cms.ui.authoring.CreationSelector;
+
+import org.scientificcms.publications.WorkingPaper;
+import org.scientificcms.publications.contenttypes.WorkingPaperItem;
+
+/**
+ *
+ * @author <a href="mailto:jens.pelzetter@googlemail.com">Jens Pelzetter</a>
+ */
+public class WorkingPaperCreateForm
+    extends AbstractPublicationCreateForm<WorkingPaper, WorkingPaperItem> {
+
+    public WorkingPaperCreateForm(final ItemSelectionModel itemModel,
+                                  final CreationSelector creationSelector,
+                                  final StringParameter selectedLanguageParam) {
+        super(itemModel, creationSelector, selectedLanguageParam);
+    }
+
+    @Override
+    protected WorkingPaper createPublication() {
+        return new WorkingPaper();
+    }
+
+}

sci-publications/src/main/java/org/scientificcms/publications/PublicationManager.java

@@ -169,7 +169,7 @@ public class PublicationManager {
             .filter(authorship -> authorship.getAuthor().equals(author))
             .findAny();
 
-        if (result.isEmpty()) {
+        if (!result.isPresent()) {
             throw new IllegalArgumentException(
                 String.format(
                     "Person %s is not an author of the publication %s.",

sci-publications/src/main/java/org/scientificcms/publications/assets/CollectedVolumeAsset.java

@@ -42,7 +42,7 @@ public class CollectedVolumeAsset extends Asset {
         return collectedVolume;
     }
 
-    protected void setCollectedVolume(final CollectedVolume collectedVolume) {
+    public void setCollectedVolume(final CollectedVolume collectedVolume) {
         this.collectedVolume = collectedVolume;
     }
 

sci-publications/src/main/java/org/scientificcms/publications/assets/JournalAsset.java

@@ -43,7 +43,7 @@ public class JournalAsset extends Asset {
         return journal;
     }
 
-    protected void setJournal(final Journal journal) {
+    public void setJournal(final Journal journal) {
         this.journal = journal;
     }
 

sci-publications/src/main/java/org/scientificcms/publications/assets/PublisherAsset.java

@@ -44,7 +44,7 @@ public class PublisherAsset extends Asset {
         return publisher;
     }
 
-    protected void setPublisher(final Publisher publisher) {
+    public void setPublisher(final Publisher publisher) {
         this.publisher = publisher;
     }
 

sci-publications/src/main/java/org/scientificcms/publications/contenttypes/ArticleInCollectedVolumeItem.java

@@ -25,33 +25,33 @@ import static org.scientificcms.publications.SciPublicationsConstants.*;
 @Entity
 @Table(name = "ARTICLE_IN_COLLECTED_VOLUME_ITEMS", schema = DB_SCHEMA)
 @Audited
-public class ArticleInCollectedVolumeItem
-    extends AbstractPublicationItem<ArticleInCollectedVolume> {
+public class ArticleInCollectedVolumeItem 
+    extends PublicationItem<ArticleInCollectedVolume> {
 
     private static final long serialVersionUID = 1L;
 
-    @OneToOne(cascade = {CascadeType.DETACH, 
-                         CascadeType.MERGE, 
-                         CascadeType.PERSIST, 
-                         CascadeType.REFRESH
-    })
-    @JoinColumn(name = "ARTICLE_ID")
-    private ArticleInCollectedVolume article;
-
-    @Override
-    public ArticleInCollectedVolume getPublication() {
-        return article;
-    }
-
-    @Override
-    protected void setPublication(final ArticleInCollectedVolume article) {
-        this.article = article;
-    }
+//    @OneToOne(cascade = {CascadeType.DETACH,
+//                         CascadeType.MERGE,
+//                         CascadeType.PERSIST,
+//                         CascadeType.REFRESH
+//    })
+//    @JoinColumn(name = "ARTICLE_ID")
+//    private ArticleInCollectedVolume article;
+//
+//    @Override
+//    public ArticleInCollectedVolume getPublication() {
+//        return article;
+//    }
+//
+//    @Override
+//    protected void setPublication(final ArticleInCollectedVolume article) {
+//        this.article = article;
+//    }
 
     @Override
     public int hashCode() {
         int hash = super.hashCode();
-        hash = 67 * hash + Objects.hashCode(article);
+//        hash = 67 * hash + Objects.hashCode(article);
         return hash;
     }
 
@@ -71,10 +71,11 @@ public class ArticleInCollectedVolumeItem
         }
         final ArticleInCollectedVolumeItem other
                                                = (ArticleInCollectedVolumeItem) obj;
-        if (!other.canEqual(this)) {
-            return false;
-        }
-        return Objects.equals(article, other.getPublication());
+//        if (!other.canEqual(this)) {
+//            return false;
+//        }
+//        return Objects.equals(article, other.getPublication());
+return other.canEqual(this);
     }
 
     @Override
@@ -82,11 +83,11 @@ public class ArticleInCollectedVolumeItem
         return obj instanceof ArticleInCollectedVolumeItem;
     }
 
-    @Override
-    public String toString(final String data) {
-        return super.toString(String.format(", article = %s%s",
-                                            Objects.toString(article),
-                                            data));
-    }
+//    @Override
+//    public String toString(final String data) {
+//        return super.toString(String.format(", article = %s%s",
+//                                            Objects.toString(article),
+//                                            data));
+//    }
 
 }

sci-publications/src/main/java/org/scientificcms/publications/contenttypes/ArticleInJournalItem.java

@@ -8,12 +8,7 @@ package org.scientificcms.publications.contenttypes;
 import org.hibernate.envers.Audited;
 import org.scientificcms.publications.ArticleInJournal;
 
-import java.util.Objects;
-
-import javax.persistence.CascadeType;
 import javax.persistence.Entity;
-import javax.persistence.JoinColumn;
-import javax.persistence.OneToOne;
 import javax.persistence.Table;
 
 import static org.scientificcms.publications.SciPublicationsConstants.*;
@@ -25,33 +20,30 @@ import static org.scientificcms.publications.SciPublicationsConstants.*;
 @Entity
 @Table(name = "ARTICLE_IN_COLLECTED_VOLUME_ITEMS", schema = DB_SCHEMA)
 @Audited
-public class ArticleInJournalItem 
-    extends AbstractPublicationItem<ArticleInJournal> {
+public class ArticleInJournalItem extends PublicationItem<ArticleInJournal> {
 
     private static final long serialVersionUID = 1L;
 
-    @OneToOne(cascade = {CascadeType.DETACH, 
-                         CascadeType.MERGE, 
-                         CascadeType.PERSIST, 
-                         CascadeType.REFRESH
-    })
-    @JoinColumn(name = "ARTICLE_ID")
-    private ArticleInJournal article;
-
-    @Override
-    public ArticleInJournal getPublication() {
-        return article;
-    }
-
-    @Override
-    protected void setPublication(final ArticleInJournal article) {
-        this.article = article;
-    }
-
+//    @OneToOne(cascade = {CascadeType.DETACH, 
+//                         CascadeType.MERGE, 
+//                         CascadeType.PERSIST, 
+//                         CascadeType.REFRESH
+//    })
+//    @JoinColumn(name = "ARTICLE_ID")
+//    private ArticleInJournal article;
+//    @Override
+//    public ArticleInJournal getPublication() {
+//        return article;
+//    }
+//
+//    @Override
+//    protected void setPublication(final ArticleInJournal article) {
+//        this.article = article;
+//    }
     @Override
     public int hashCode() {
         int hash = super.hashCode();
-        hash = 67 * hash + Objects.hashCode(this.article);
+//        hash = 67 * hash + Objects.hashCode(this.article);
         return hash;
     }
 
@@ -70,11 +62,12 @@ public class ArticleInJournalItem
             return false;
         }
         final ArticleInJournalItem other
-                                   = (ArticleInJournalItem) obj;
-        if (!other.canEqual(this)) {
-            return false;
-        }
-        return Objects.equals(this.article, other.getPublication());
+                                       = (ArticleInJournalItem) obj;
+//        if (!other.canEqual(this)) {
+//            return false;
+//        }
+//        return Objects.equals(this.article, other.getPublication());
+        return other.canEqual(this);
     }
 
     @Override
@@ -82,11 +75,11 @@ public class ArticleInJournalItem
         return obj instanceof ArticleInJournalItem;
     }
 
-    @Override
-    public String toString(final String data) {
-        return super.toString(String.format(", article = %s%s",
-                                            Objects.toString(article),
-                                            data));
-    }
+//    @Override
+//    public String toString(final String data) {
+//        return super.toString(String.format(", article = %s%s",
+//                                            Objects.toString(article),
+//                                            data));
+//    }
 
 }

sci-publications/src/main/java/org/scientificcms/publications/contenttypes/CollectedVolumeItem.java

@@ -27,32 +27,32 @@ import static org.scientificcms.publications.SciPublicationsConstants.*;
 @Table(name = "COLLECTED_VOLUME_ITEMS", schema = DB_SCHEMA)
 @Audited
 public class CollectedVolumeItem
-    extends AbstractPublicationWithPublisherItem<CollectedVolume> {
+    extends PublicationWithPublisherItem<CollectedVolume> {
 
     private static final long serialVersionUID = 1L;
 
-    @OneToOne(cascade = {CascadeType.DETACH, 
-                         CascadeType.MERGE, 
-                         CascadeType.PERSIST, 
-                         CascadeType.REFRESH
-    })
-    @JoinColumn(name = "COLLECTED_VOLUME_ID")
-    private CollectedVolume collectedVolume;
-
-    @Override
-    public CollectedVolume getPublication() {
-        return collectedVolume;
-    }
-
-    @Override
-    protected void setPublication(final CollectedVolume collectedVolume) {
-        this.collectedVolume = collectedVolume;
-    }
+//    @OneToOne(cascade = {CascadeType.DETACH, 
+//                         CascadeType.MERGE, 
+//                         CascadeType.PERSIST, 
+//                         CascadeType.REFRESH
+//    })
+//    @JoinColumn(name = "COLLECTED_VOLUME_ID")
+//    private CollectedVolume collectedVolume;
+//
+//    @Override
+//    public CollectedVolume getPublication() {
+//        return collectedVolume;
+//    }
+//
+//    @Override
+//    protected void setPublication(final CollectedVolume collectedVolume) {
+//        this.collectedVolume = collectedVolume;
+//    }
 
     @Override
     public int hashCode() {
         int hash = super.hashCode();
-        hash = 59 * hash + Objects.hashCode(collectedVolume);
+//        hash = 59 * hash + Objects.hashCode(collectedVolume);
         return hash;
     }
 
@@ -71,10 +71,11 @@ public class CollectedVolumeItem
             return false;
         }
         final CollectedVolumeItem other = (CollectedVolumeItem) obj;
-        if (!other.canEqual(this)) {
-            return false;
-        }
-        return Objects.equals(collectedVolume, other.getPublication());
+//        if (!other.canEqual(this)) {
+//            return false;
+//        }
+//        return Objects.equals(collectedVolume, other.getPublication());
+return other.canEqual(this);
     }
 
     @Override
@@ -82,11 +83,11 @@ public class CollectedVolumeItem
         return obj instanceof CollectedVolumeItem;
     }
 
-    @Override
-    public String toString(final String data) {
-        return super.toString(String.format(", collectedVolume = %s%s",
-                                            Objects.toString(collectedVolume),
-                                            data));
-    }
+//    @Override
+//    public String toString(final String data) {
+//        return super.toString(String.format(", collectedVolume = %s%s",
+//                                            Objects.toString(collectedVolume),
+//                                            data));
+//    }
 
 }

sci-publications/src/main/java/org/scientificcms/publications/contenttypes/ExpertiseItem.java

@@ -25,33 +25,32 @@ import static org.scientificcms.publications.SciPublicationsConstants.*;
 @Entity
 @Table(name = "EXPERTISE_ITEMS", schema = DB_SCHEMA)
 @Audited
-public class ExpertiseItem
-    extends AbstractPublicationItem<Expertise> {
+public class ExpertiseItem extends PublicationItem<Expertise> {
 
     private static final long serialVersionUID = 1L;
 
-    @OneToOne(cascade = {CascadeType.DETACH,
-                         CascadeType.MERGE,
-                         CascadeType.PERSIST,
-                         CascadeType.REFRESH
-    })
-    @JoinColumn(name = "EXPERTISE_ID")
-    private Expertise expertise;
-
-    @Override
-    public Expertise getPublication() {
-        return expertise;
-    }
-
-    @Override
-    protected void setPublication(final Expertise expertise) {
-        this.expertise = expertise;
-    }
+//    @OneToOne(cascade = {CascadeType.DETACH,
+//                         CascadeType.MERGE,
+//                         CascadeType.PERSIST,
+//                         CascadeType.REFRESH
+//    })
+//    @JoinColumn(name = "EXPERTISE_ID")
+//    private Expertise expertise;
+//
+//    @Override
+//    public Expertise getPublication() {
+//        return expertise;
+//    }
+//
+//    @Override
+//    protected void setPublication(final Expertise expertise) {
+//        this.expertise = expertise;
+//    }
 
     @Override
     public int hashCode() {
         int hash = super.hashCode();
-        hash = 67 * hash + Objects.hashCode(expertise);
+//        hash = 67 * hash + Objects.hashCode(expertise);
         return hash;
     }
 
@@ -71,10 +70,11 @@ public class ExpertiseItem
         }
         final ExpertiseItem other
                                 = (ExpertiseItem) obj;
-        if (!other.canEqual(this)) {
-            return false;
-        }
-        return Objects.equals(this.expertise, other.getPublication());
+//        if (!other.canEqual(this)) {
+//            return false;
+//        }
+//        return Objects.equals(this.expertise, other.getPublication());
+return other.canEqual(this);
     }
 
     @Override
@@ -82,11 +82,11 @@ public class ExpertiseItem
         return obj instanceof ExpertiseItem;
     }
 
-    @Override
-    public String toString(final String data) {
-        return super.toString(String.format(", expertise = %s%s",
-                                            Objects.toString(expertise),
-                                            data));
-    }
+//    @Override
+//    public String toString(final String data) {
+//        return super.toString(String.format(", expertise = %s%s",
+//                                            Objects.toString(expertise),
+//                                            data));
+//    }
 
 }

sci-publications/src/main/java/org/scientificcms/publications/contenttypes/GreyLiteratureItem.java

@@ -25,33 +25,31 @@ import static org.scientificcms.publications.SciPublicationsConstants.*;
 @Entity
 @Table(name = "GREY_LITERATURE_ITEMS", schema = DB_SCHEMA)
 @Audited
-public class GreyLiteratureItem 
-    extends AbstractPublicationItem<GreyLiterature> {
+public class GreyLiteratureItem extends PublicationItem<GreyLiterature> {
 
     private static final long serialVersionUID = 1L;
 
-    @OneToOne(cascade = {CascadeType.DETACH, 
-                         CascadeType.MERGE, 
-                         CascadeType.PERSIST, 
-                         CascadeType.REFRESH
-    })
-    @JoinColumn(name = "GREY_LITERATURE_ID")
-    private GreyLiterature greyLiterature;
-
-    @Override
-    public GreyLiterature getPublication() {
-        return greyLiterature;
-    }
-
-    @Override
-    protected void setPublication(final GreyLiterature greyLiterature) {
-        this.greyLiterature = greyLiterature;
-    }
-
+//    @OneToOne(cascade = {CascadeType.DETACH,
+//                         CascadeType.MERGE,
+//                         CascadeType.PERSIST,
+//                         CascadeType.REFRESH
+//    })
+//    @JoinColumn(name = "GREY_LITERATURE_ID")
+//    private GreyLiterature greyLiterature;
+//
+//    @Override
+//    public GreyLiterature getPublication() {
+//        return greyLiterature;
+//    }
+//
+//    @Override
+//    protected void setPublication(final GreyLiterature greyLiterature) {
+//        this.greyLiterature = greyLiterature;
+//    }
     @Override
     public int hashCode() {
         int hash = super.hashCode();
-        hash = 67 * hash + Objects.hashCode(greyLiterature);
+//        hash = 67 * hash + Objects.hashCode(greyLiterature);
         return hash;
     }
 
@@ -70,11 +68,12 @@ public class GreyLiteratureItem
             return false;
         }
         final GreyLiteratureItem other
-                                   = (GreyLiteratureItem) obj;
-        if (!other.canEqual(this)) {
-            return false;
-        }
-        return Objects.equals(this.greyLiterature, other.getPublication());
+                                     = (GreyLiteratureItem) obj;
+//        if (!other.canEqual(this)) {
+//            return false;
+//        }
+//        return Objects.equals(this.greyLiterature, other.getPublication());
+        return other.canEqual(this);
     }
 
     @Override
@@ -82,11 +81,11 @@ public class GreyLiteratureItem
         return obj instanceof GreyLiteratureItem;
     }
 
-    @Override
-    public String toString(final String data) {
-        return super.toString(String.format(", greyLiterature = %s%s",
-                                            Objects.toString(greyLiterature),
-                                            data));
-    }
+//    @Override
+//    public String toString(final String data) {
+//        return super.toString(String.format(", greyLiterature = %s%s",
+//                                            Objects.toString(greyLiterature),
+//                                            data));
+//    }
 
 }

sci-publications/src/main/java/org/scientificcms/publications/contenttypes/InProceedingsItem.java

@@ -25,33 +25,32 @@ import static org.scientificcms.publications.SciPublicationsConstants.*;
 @Entity
 @Table(name = "INPROCEEDINGS_ITEMS", schema = DB_SCHEMA)
 @Audited
-public class InProceedingsItem 
-    extends AbstractPublicationItem<InProceedings> {
+public class InProceedingsItem extends PublicationItem<InProceedings> {
 
     private static final long serialVersionUID = 1L;
 
-    @OneToOne(cascade = {CascadeType.DETACH, 
-                         CascadeType.MERGE, 
-                         CascadeType.PERSIST, 
-                         CascadeType.REFRESH
-    })
-    @JoinColumn(name = "INPROCEEDINGS_ID")
-    private InProceedings inProcedings;
-
-    @Override
-    public InProceedings getPublication() {
-        return inProcedings;
-    }
-
-    @Override
-    protected void setPublication(final InProceedings inProceedings) {
-        this.inProcedings = inProceedings;
-    }
+//    @OneToOne(cascade = {CascadeType.DETACH,
+//                         CascadeType.MERGE,
+//                         CascadeType.PERSIST,
+//                         CascadeType.REFRESH
+//    })
+//    @JoinColumn(name = "INPROCEEDINGS_ID")
+//    private InProceedings inProcedings;
+//
+//    @Override
+//    public InProceedings getPublication() {
+//        return inProcedings;
+//    }
+//
+//    @Override
+//    protected void setPublication(final InProceedings inProceedings) {
+//        this.inProcedings = inProceedings;
+//    }
 
     @Override
     public int hashCode() {
         int hash = super.hashCode();
-        hash = 67 * hash + Objects.hashCode(inProcedings);
+//        hash = 67 * hash + Objects.hashCode(inProcedings);
         return hash;
     }
 
@@ -70,11 +69,12 @@ public class InProceedingsItem
             return false;
         }
         final InProceedingsItem other
-                                   = (InProceedingsItem) obj;
-        if (!other.canEqual(this)) {
-            return false;
-        }
-        return Objects.equals(this.inProcedings, other.getPublication());
+                                    = (InProceedingsItem) obj;
+//        if (!other.canEqual(this)) {
+//            return false;
+//        }
+//        return Objects.equals(this.inProcedings, other.getPublication());
+return other.canEqual(this);
     }
 
     @Override
@@ -82,11 +82,11 @@ public class InProceedingsItem
         return obj instanceof InProceedingsItem;
     }
 
-    @Override
-    public String toString(final String data) {
-        return super.toString(String.format(", inProceedings = %s%s",
-                                            Objects.toString(inProcedings),
-                                            data));
-    }
+//    @Override
+//    public String toString(final String data) {
+//        return super.toString(String.format(", inProceedings = %s%s",
+//                                            Objects.toString(inProcedings),
+//                                            data));
+//    }
 
 }

sci-publications/src/main/java/org/scientificcms/publications/contenttypes/InternetArticleItem.java

@@ -25,33 +25,31 @@ import static org.scientificcms.publications.SciPublicationsConstants.*;
 @Entity
 @Table(name = "INTERNET_ARTICLE_ITEMS", schema = DB_SCHEMA)
 @Audited
-public class InternetArticleItem
-    extends AbstractPublicationItem<InternetArticle> {
+public class InternetArticleItem extends PublicationItem<InternetArticle> {
 
     private static final long serialVersionUID = 1L;
 
-    @OneToOne(cascade = {CascadeType.DETACH,
-                         CascadeType.MERGE,
-                         CascadeType.PERSIST,
-                         CascadeType.REFRESH
-    })
-    @JoinColumn(name = "EXPERTISE_ID")
-    private InternetArticle expertise;
-
-    @Override
-    public InternetArticle getPublication() {
-        return expertise;
-    }
-
-    @Override
-    protected void setPublication(final InternetArticle internetArticle) {
-        this.expertise = internetArticle;
-    }
-
+//    @OneToOne(cascade = {CascadeType.DETACH,
+//                         CascadeType.MERGE,
+//                         CascadeType.PERSIST,
+//                         CascadeType.REFRESH
+//    })
+//    @JoinColumn(name = "EXPERTISE_ID")
+//    private InternetArticle expertise;
+//
+//    @Override
+//    public InternetArticle getPublication() {
+//        return expertise;
+//    }
+//
+//    @Override
+//    protected void setPublication(final InternetArticle internetArticle) {
+//        this.expertise = internetArticle;
+//    }
     @Override
     public int hashCode() {
         int hash = super.hashCode();
-        hash = 67 * hash + Objects.hashCode(expertise);
+//        hash = 67 * hash + Objects.hashCode(expertise);
         return hash;
     }
 
@@ -71,10 +69,11 @@ public class InternetArticleItem
         }
         final InternetArticleItem other
                                       = (InternetArticleItem) obj;
-        if (!other.canEqual(this)) {
-            return false;
-        }
-        return Objects.equals(this.expertise, other.getPublication());
+//        if (!other.canEqual(this)) {
+//            return false;
+//        }
+//        return Objects.equals(this.expertise, other.getPublication());
+        return other.canEqual(this);
     }
 
     @Override
@@ -82,11 +81,11 @@ public class InternetArticleItem
         return obj instanceof InternetArticleItem;
     }
 
-    @Override
-    public String toString(final String data) {
-        return super.toString(String.format(", internetArticle = %s%s",
-                                            Objects.toString(expertise),
-                                            data));
-    }
+//    @Override
+//    public String toString(final String data) {
+//        return super.toString(String.format(", internetArticle = %s%s",
+//                                            Objects.toString(expertise),
+//                                            data));
+//    }
 
 }

sci-publications/src/main/java/org/scientificcms/publications/contenttypes/MonographItem.java

@@ -7,12 +7,7 @@ package org.scientificcms.publications.contenttypes;
 
 import org.scientificcms.publications.Monograph;
 
-import java.util.Objects;
-
-import javax.persistence.CascadeType;
 import javax.persistence.Entity;
-import javax.persistence.JoinColumn;
-import javax.persistence.OneToOne;
 import javax.persistence.Table;
 
 import static org.scientificcms.publications.SciPublicationsConstants.*;
@@ -23,33 +18,31 @@ import static org.scientificcms.publications.SciPublicationsConstants.*;
  */
 @Entity
 @Table(name = "MONOGRAPH_ITEMS", schema = DB_SCHEMA)
-public class MonographItem 
-    extends AbstractPublicationWithPublisherItem<Monograph> {
+public class MonographItem extends PublicationWithPublisherItem<Monograph> {
 
     private static final long serialVersionUID = 1L;
 
-    @OneToOne(cascade = {CascadeType.DETACH, 
-                         CascadeType.MERGE, 
-                         CascadeType.PERSIST, 
-                         CascadeType.REFRESH
-    })
-    @JoinColumn(name = "MONOGRAPH_ID")
-    private Monograph monograph;
-
-    @Override
-    public Monograph getPublication() {
-        return monograph;
-    }
-
-    @Override
-    protected void setPublication(final Monograph monograph) {
-        this.monograph = monograph;
-    }
-
+//    @OneToOne(cascade = {CascadeType.DETACH, 
+//                         CascadeType.MERGE, 
+//                         CascadeType.PERSIST, 
+//                         CascadeType.REFRESH
+//    })
+//    @JoinColumn(name = "MONOGRAPH_ID")
+//    private Monograph monograph;
+//
+//    @Override
+//    public Monograph getPublication() {
+//        return monograph;
+//    }
+//
+//    @Override
+//    protected void setPublication(final Monograph monograph) {
+//        this.monograph = monograph;
+//    }
     @Override
     public int hashCode() {
         int hash = super.hashCode();
-        hash = 29 * hash + Objects.hashCode(monograph);
+//        hash = 29 * hash + Objects.hashCode(monograph);
         return hash;
     }
 
@@ -68,10 +61,11 @@ public class MonographItem
             return false;
         }
         final MonographItem other = (MonographItem) obj;
-        if (!other.canEqual(this)) {
-            return false;
-        }
-        return Objects.equals(monograph, other.getPublication());
+//        if (!other.canEqual(this)) {
+//            return false;
+//        }
+//        return Objects.equals(monograph, other.getPublication());
+        return other.canEqual(this);
     }
 
     @Override
@@ -79,11 +73,11 @@ public class MonographItem
         return obj instanceof MonographItem;
     }
 
-    @Override
-    public String toString(final String data) {
-        return super.toString(String.format(", publication = %s%s",
-                                            Objects.toString(monograph),
-                                            data));
-    }
+//    @Override
+//    public String toString(final String data) {
+//        return super.toString(String.format(", publication = %s%s",
+//                                            Objects.toString(monograph),
+//                                            data));
+//    }
 
 }

sci-publications/src/main/java/org/scientificcms/publications/contenttypes/ProceedingsItem.java

@@ -7,12 +7,7 @@ package org.scientificcms.publications.contenttypes;
 
 import org.scientificcms.publications.Proceedings;
 
-import java.util.Objects;
-
-import javax.persistence.CascadeType;
 import javax.persistence.Entity;
-import javax.persistence.JoinColumn;
-import javax.persistence.OneToOne;
 import javax.persistence.Table;
 
 import static org.scientificcms.publications.SciPublicationsConstants.*;
@@ -23,33 +18,31 @@ import static org.scientificcms.publications.SciPublicationsConstants.*;
  */
 @Entity
 @Table(name = "PROCEEDINGS_ITEMS", schema = DB_SCHEMA)
-public class ProceedingsItem
-    extends AbstractPublicationWithPublisherItem<Proceedings> {
+public class ProceedingsItem extends PublicationWithPublisherItem<Proceedings> {
 
     private static final long serialVersionUID = 1L;
 
-    @OneToOne(cascade = {CascadeType.DETACH, 
-                         CascadeType.MERGE, 
-                         CascadeType.PERSIST, 
-                         CascadeType.REFRESH
-    })
-    @JoinColumn(name = "PROCEEDINGS_ID")
-    private Proceedings article;
-
-    @Override
-    public Proceedings getPublication() {
-        return article;
-    }
-
-    @Override
-    protected void setPublication(final Proceedings article) {
-        this.article = article;
-    }
-
+//    @OneToOne(cascade = {CascadeType.DETACH, 
+//                         CascadeType.MERGE, 
+//                         CascadeType.PERSIST, 
+//                         CascadeType.REFRESH
+//    })
+//    @JoinColumn(name = "PROCEEDINGS_ID")
+//    private Proceedings article;
+//
+//    @Override
+//    public Proceedings getPublication() {
+//        return article;
+//    }
+//
+//    @Override
+//    protected void setPublication(final Proceedings article) {
+//        this.article = article;
+//    }
     @Override
     public int hashCode() {
         int hash = super.hashCode();
-        hash = 67 * hash + Objects.hashCode(article);
+//        hash = 67 * hash + Objects.hashCode(article);
         return hash;
     }
 
@@ -69,10 +62,11 @@ public class ProceedingsItem
         }
         final ProceedingsItem other
                                   = (ProceedingsItem) obj;
-        if (!other.canEqual(this)) {
-            return false;
-        }
-        return Objects.equals(this.article, other.getPublication());
+//        if (!other.canEqual(this)) {
+//            return false;
+//        }
+//        return Objects.equals(this.article, other.getPublication());
+        return other.canEqual(this);
     }
 
     @Override
@@ -80,11 +74,11 @@ public class ProceedingsItem
         return obj instanceof ProceedingsItem;
     }
 
-    @Override
-    public String toString(final String data) {
-        return super.toString(String.format(", proceedings = %s%s",
-                                            Objects.toString(article),
-                                            data));
-    }
+//    @Override
+//    public String toString(final String data) {
+//        return super.toString(String.format(", proceedings = %s%s",
+//                                            Objects.toString(article),
+//                                            data));
+//    }
 
 }

sci-publications/src/main/java/org/scientificcms/publications/contenttypes/PublicationItem.java

@@ -9,27 +9,51 @@ import org.hibernate.envers.Audited;
 import org.librecms.contentsection.ContentItem;
 import org.scientificcms.publications.Publication;
 
+import javax.persistence.CascadeType;
 import javax.persistence.Entity;
+import javax.persistence.FetchType;
+import javax.persistence.NamedQueries;
+import javax.persistence.NamedQuery;
+import javax.persistence.OneToOne;
 import javax.persistence.Table;
 
 import static org.scientificcms.publications.SciPublicationsConstants.*;
 
 /**
- *
+ * Base Item for Publications.
+ * 
  * @author <a href="mailto:jens.pelzetter@googlemail.com">Jens Pelzetter</a>
  * @param <T>
  */
 @Entity
 @Table(name = "PUBLICATION_ITEMS", schema = DB_SCHEMA)
 @Audited
-public abstract class AbstractPublicationItem<T extends Publication>
-    extends ContentItem {
+@NamedQueries({
+    @NamedQuery(
+        name = "PublicationItem.findForPublication",
+        query = "SELECT i FROM PublicationItem i WHERE i.publication = :publication"
+    )
+})
+public class PublicationItem<T extends Publication> extends ContentItem {
 
     private static final long serialVersionUID = 1L;
 
-    public abstract T getPublication();
+    @OneToOne(cascade = {CascadeType.DETACH,
+                         CascadeType.MERGE,
+                         CascadeType.PERSIST,
+                         CascadeType.REFRESH},
+              fetch = FetchType.LAZY,
+              targetEntity = Publication.class
+    )
+    private T publication;
 
-    protected abstract void setPublication(T publication);
+    public T getPublication() {
+        return publication;
+    }
+
+    public void setPublication(final T publication) {
+        this.publication = publication;
+    }
 
     @Override
     public int hashCode() {
@@ -49,18 +73,17 @@ public abstract class AbstractPublicationItem<T extends Publication>
         if (!super.equals(obj)) {
             return false;
         }
-        if (!(obj instanceof AbstractPublicationItem)) {
+        if (!(obj instanceof PublicationItem)) {
             return false;
         }
-        final AbstractPublicationItem<?> other
-                                             = (AbstractPublicationItem<?>) obj;
+        final PublicationItem<?> other = (PublicationItem<?>) obj;
         return other.canEqual(this);
     }
 
     @Override
     public boolean canEqual(final Object obj) {
 
-        return obj instanceof AbstractPublicationItem;
+        return obj instanceof PublicationItem;
     }
 
 }

sci-publications/src/main/java/org/scientificcms/publications/contenttypes/PublicationItemRepository.java

@@ -0,0 +1,40 @@
+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package org.scientificcms.publications.contenttypes;
+
+import org.librecms.contentsection.ContentItemRepository;
+import org.scientificcms.publications.Publication;
+
+import java.util.Optional;
+
+import javax.persistence.NoResultException;
+
+/**
+ *
+ * @author <a href="mailto:jens.pelzetter@googlemail.com">Jens Pelzetter</a>
+ */
+public class PublicationItemRepository extends ContentItemRepository {
+
+    private static final long serialVersionUID = 1L;
+
+    @SuppressWarnings("unchecked")
+    public <T extends Publication> Optional<PublicationItem<T>> findForPublication(
+        final T publication, final Class<T> publicationType
+    ) {
+        try {
+            return Optional.of(
+                (PublicationItem<T>) getEntityManager()
+                    .createNamedQuery("PublicationItem.findForPublication",
+                                      PublicationItem.class)
+                    .setParameter("publication", publication)
+                    .getSingleResult()
+            );
+        } catch (NoResultException ex) {
+            return Optional.empty();
+        }
+    }
+
+}

sci-publications/src/main/java/org/scientificcms/publications/contenttypes/PublicationWithPublisherItem.java

@@ -21,8 +21,8 @@ import static org.scientificcms.publications.SciPublicationsConstants.*;
 @Entity
 @Table(name = "PUBLICATION_WITH_PUBLISHER_ITEMS", schema = DB_SCHEMA)
 @Audited
-public abstract class AbstractPublicationWithPublisherItem<T extends PublicationWithPublisher>
-    extends AbstractPublicationItem<T> {
+public class PublicationWithPublisherItem<T extends PublicationWithPublisher>
+    extends PublicationItem<T> {
 
     private static final long serialVersionUID = 1L;
 
@@ -44,17 +44,17 @@ public abstract class AbstractPublicationWithPublisherItem<T extends Publication
         if (!super.equals(obj)) {
             return false;
         }
-        if (!(obj instanceof AbstractPublicationWithPublisherItem)) {
+        if (!(obj instanceof PublicationWithPublisherItem)) {
             return false;
         }
-        final AbstractPublicationWithPublisherItem<?> other
-                                                          = (AbstractPublicationWithPublisherItem<?>) obj;
+        final PublicationWithPublisherItem<?> other
+                                                          = (PublicationWithPublisherItem<?>) obj;
         return other.canEqual(this);
     }
 
     @Override
     public boolean canEqual(final Object obj) {
-        return obj instanceof AbstractPublicationWithPublisherItem;
+        return obj instanceof PublicationWithPublisherItem;
     }
 
 }

sci-publications/src/main/java/org/scientificcms/publications/contenttypes/TalkItem.java

@@ -25,33 +25,31 @@ import static org.scientificcms.publications.SciPublicationsConstants.*;
 @Entity
 @Table(name = "TALK_ITEMS", schema = DB_SCHEMA)
 @Audited
-public class TalkItem
-    extends AbstractPublicationItem<Talk> {
+public class TalkItem extends PublicationItem<Talk> {
 
     private static final long serialVersionUID = 1L;
 
-    @OneToOne(cascade = {CascadeType.DETACH,
-                         CascadeType.MERGE,
-                         CascadeType.PERSIST,
-                         CascadeType.REFRESH
-    })
-    @JoinColumn(name = "TALK_ID")
-    private Talk talk;
-
-    @Override
-    public Talk getPublication() {
-        return talk;
-    }
-
-    @Override
-    protected void setPublication(final Talk talk) {
-        this.talk = talk;
-    }
-
+//    @OneToOne(cascade = {CascadeType.DETACH,
+//                         CascadeType.MERGE,
+//                         CascadeType.PERSIST,
+//                         CascadeType.REFRESH
+//    })
+//    @JoinColumn(name = "TALK_ID")
+//    private Talk talk;
+//
+//    @Override
+//    public Talk getPublication() {
+//        return talk;
+//    }
+//
+//    @Override
+//    protected void setPublication(final Talk talk) {
+//        this.talk = talk;
+//    }
     @Override
     public int hashCode() {
         int hash = super.hashCode();
-        hash = 67 * hash + Objects.hashCode(talk);
+//        hash = 67 * hash + Objects.hashCode(talk);
         return hash;
     }
 
@@ -71,10 +69,11 @@ public class TalkItem
         }
         final TalkItem other
                            = (TalkItem) obj;
-        if (!other.canEqual(this)) {
-            return false;
-        }
-        return Objects.equals(this.talk, other.getPublication());
+//        if (!other.canEqual(this)) {
+//            return false;
+//        }
+//        return Objects.equals(this.talk, other.getPublication());
+        return other.canEqual(this);
     }
 
     @Override
@@ -82,11 +81,11 @@ public class TalkItem
         return obj instanceof TalkItem;
     }
 
-    @Override
-    public String toString(final String data) {
-        return super.toString(String.format(", talk = %s%s",
-                                            Objects.toString(talk),
-                                            data));
-    }
+//    @Override
+//    public String toString(final String data) {
+//        return super.toString(String.format(", talk = %s%s",
+//                                            Objects.toString(talk),
+//                                            data));
+//    }
 
 }

sci-publications/src/main/java/org/scientificcms/publications/contenttypes/WorkingPaperItem.java

@@ -8,12 +8,7 @@ package org.scientificcms.publications.contenttypes;
 import org.hibernate.envers.Audited;
 import org.scientificcms.publications.WorkingPaper;
 
-import java.util.Objects;
-
-import javax.persistence.CascadeType;
 import javax.persistence.Entity;
-import javax.persistence.JoinColumn;
-import javax.persistence.OneToOne;
 import javax.persistence.Table;
 
 import static org.scientificcms.publications.SciPublicationsConstants.*;
@@ -25,33 +20,31 @@ import static org.scientificcms.publications.SciPublicationsConstants.*;
 @Entity
 @Table(name = "WORKING_PAPER_ITEMS", schema = DB_SCHEMA)
 @Audited
-public class WorkingPaperItem 
-    extends AbstractPublicationItem<WorkingPaper> {
+public class WorkingPaperItem extends PublicationItem<WorkingPaper> {
 
     private static final long serialVersionUID = 1L;
 
-    @OneToOne(cascade = {CascadeType.DETACH, 
-                         CascadeType.MERGE, 
-                         CascadeType.PERSIST, 
-                         CascadeType.REFRESH
-    })
-    @JoinColumn(name = "EXPERTISE_ID")
-    private WorkingPaper workingPaper;
-
-    @Override
-    public WorkingPaper getPublication() {
-        return workingPaper;
-    }
-
-    @Override
-    protected void setPublication(final WorkingPaper workingPaper) {
-        this.workingPaper = workingPaper;
-    }
-
+//    @OneToOne(cascade = {CascadeType.DETACH, 
+//                         CascadeType.MERGE, 
+//                         CascadeType.PERSIST, 
+//                         CascadeType.REFRESH
+//    })
+//    @JoinColumn(name = "EXPERTISE_ID")
+//    private WorkingPaper workingPaper;
+//
+//    @Override
+//    public WorkingPaper getPublication() {
+//        return workingPaper;
+//    }
+//
+//    @Override
+//    protected void setPublication(final WorkingPaper workingPaper) {
+//        this.workingPaper = workingPaper;
+//    }
     @Override
     public int hashCode() {
         int hash = super.hashCode();
-        hash = 67 * hash + Objects.hashCode(workingPaper);
+//        hash = 67 * hash + Objects.hashCode(workingPaper);
         return hash;
     }
 
@@ -71,10 +64,11 @@ public class WorkingPaperItem
         }
         final WorkingPaperItem other
                                    = (WorkingPaperItem) obj;
-        if (!other.canEqual(this)) {
-            return false;
-        }
-        return Objects.equals(this.workingPaper, other.getPublication());
+//        if (!other.canEqual(this)) {
+//            return false;
+//        }
+//        return Objects.equals(this.workingPaper, other.getPublication());
+        return other.canEqual(this);
     }
 
     @Override
@@ -82,11 +76,11 @@ public class WorkingPaperItem
         return obj instanceof WorkingPaperItem;
     }
 
-    @Override
-    public String toString(final String data) {
-        return super.toString(String.format(", workingPaper = %s%s",
-                                            Objects.toString(workingPaper),
-                                            data));
-    }
+//    @Override
+//    public String toString(final String data) {
+//        return super.toString(String.format(", workingPaper = %s%s",
+//                                            Objects.toString(workingPaper),
+//                                            data));
+//    }
 
 }