- Some formatting and JavaDoc for ccm-sci-assets-publicationsabout

- First part of the ccm-sci-assets-publicationspersons


git-svn-id: https://svn.libreccm.org/ccm/trunk@2638 8810af33-2d31-482b-a856-94f89814c4df

ccm-sci-assets-publicationsabout/application.xml

@@ -2,29 +2,29 @@
 <ccm:application xmlns:ccm="http://ccm.redhat.com/ccm-project"
                  name="ccm-sci-assets-publicationsabout"
                  prettyName="ScientificCMS Publications module asset for relatating publications which discussing another publication"
-		 version="6.6.0"
+                 version="6.6.0"
-		 release="1"
+                 release="1"
-		 webapp="ROOT">
+                 webapp="ROOT">
 
-	<ccm:dependencies>
+    <ccm:dependencies>
-	        <ccm:requires name="ccm-core" version="6.6.0" release="ge"/>
+        <ccm:requires name="ccm-core" version="6.6.0" release="ge"/>
-	        <ccm:requires name="ccm-cms" version="6.6.0" release="ge"/>  
+        <ccm:requires name="ccm-cms" version="6.6.0" release="ge"/>  
-	        <ccm:requires name="ccm-sci-publications" version="6.6.5" relation="ge"/>  
+        <ccm:requires name="ccm-sci-publications" version="6.6.5" relation="ge"/>  
-	</ccm:dependencies>
+    </ccm:dependencies>
 
-	<ccm:directories>
+    <ccm:directories>
-		<ccm:directory name="pdl"/>
+        <ccm:directory name="pdl"/>
-	        <ccm:directory name="sql"/>
+        <ccm:directory name="sql"/>
-		<ccm:directory name="src"/>
+        <ccm:directory name="src"/>
-	</ccm:directories>
+    </ccm:directories>
 	    
-	<ccm:contacts>
+    <ccm:contacts>
-		<ccm:contact uri="http://www.scientificcms.org" type="website"/>
+        <ccm:contact uri="http://www.scientificcms.org" type="website"/>
-		<ccm:contact uri="mailto:info@scientificcms.org" type="support"/>
+        <ccm:contact uri="mailto:info@scientificcms.org" type="support"/>
-	</ccm:contacts>
+    </ccm:contacts>
 	
-	<ccm:description>
+    <ccm:description>
-		This assets for the SciPublications allows it to define associatons between a publication and one or more other publications which are discussed by the publication.
+        This assets for the SciPublications allows it to define associatons between a publication and one or more other publications which are discussed by the publication.
-	</ccm:description>
+    </ccm:description>
 
 </ccm:application>		 

ccm-sci-assets-publicationsabout/pdl/com/arsdigita/cms/contentassets/SciPublicationsAbout.pdl

@@ -38,6 +38,7 @@ association {
     Integer[0..1] publicationsOrder = ca_publications_about.publications_order INTEGER;
 }
 
+//Helper object to allow efficent filtering
 object type SciPublicationsAbout extends ACSObject {
 
     String[0..1] discusses = ca_publications_about_asset.discusses;

ccm-sci-assets-publicationsabout/src/com/arsdigita/cms/contentassets/PublicationCollection.java

@@ -25,6 +25,7 @@ import com.arsdigita.domain.DomainObjectFactory;
 import com.arsdigita.persistence.DataCollection;
 
 /**
+ * A helper collection for use in the classes of the ccm-sci-assets-publicationsabout module.
  * 
  * @author Jens Pelzetter <jens@jp-digital.de>
  * @version $Id$

ccm-sci-assets-publicationsabout/src/com/arsdigita/cms/contentassets/SciPublicationsAbout.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2010 Jens Pelzetter
+ * Copyright (c) 2014 Jens Pelzetter
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public License
@@ -25,6 +25,12 @@ import com.arsdigita.kernel.ACSObject;
 import com.arsdigita.persistence.DataObject;
 
 /**
+ * Helper class/asset used to provide an easy and efficient method for filtering publications
+ * for discussed publications. For this purpose, this asset contains two string properties which
+ * will contain the concatenated titles of the publications which are discussing the owing 
+ * publications and the concatenated titles of the publications which are discussed by the owing
+ * publication. This allows it to use a simple substring (LIKE in SQL) to filter a list of 
+ * publications for discussed or discussing publications.
  * 
  * @author Jens Pelzetter <jens@jp-digital.de>
  * @version $Id$
@@ -37,19 +43,39 @@ public class SciPublicationsAbout extends ACSObject {
     public static final String DISCUSSES = "discusses";
     public static final String DISCUSSED_BY = "discussedBy";
     public static final String OWNER = "owner";
+    public static final String PUBLICATIONS_ABOUT = "publicationsAbout";
 
+    /**
+     * Default constructor for a new item
+     */
     public SciPublicationsAbout() {
         super(BASE_DATA_OBJECT_TYPE);
     }
 
+    /**
+     * Constructor which would be called from the parameterless constructor of a subtype.
+     * 
+     * @param type The base data object type of the new object.
+     */
     public SciPublicationsAbout(final String type) {
         super(type);
     }
 
+    /**
+     * Creates a new domain object of this class using the data object provided.
+     * 
+     * @param dataObject A {@link DataObject} representing an object of this class.
+     */
     public SciPublicationsAbout(final DataObject dataObject) {
         super(dataObject);
     }
 
+    /**
+     * Helper method for creating a new asset of this type. 
+     * 
+     * @param owner The owner of the asset
+     * @return The new asset
+     */
     public static SciPublicationsAbout create(final Publication owner) {
         final PublicationBundle ownerBundle = owner.getPublicationBundle();
         final ItemCollection instances = ownerBundle.getInstances();
@@ -62,24 +88,42 @@ public class SciPublicationsAbout extends ACSObject {
 
         return new SciPublicationsAbout((DataObject) owner.get(PUBLICATIONS_ABOUT));
     }
-    public static final String PUBLICATIONS_ABOUT = "publicationsAbout";
     
+    /**
+     * Helper method for {@link #create(com.arsdigita.cms.contenttypes.Publication)}.
+     * 
+     * @param instance 
+     */
     private static void createForInstance(final Publication instance) {
         final SciPublicationsAbout about = new SciPublicationsAbout();
-        about.set("owner", instance);
+        about.set(OWNER, instance);
         about.update();
 
         about.save();
     }
 
+    /**
+     * 
+     * @return The discussed publications string.
+     */
     public String getDiscussedPublications() {
         return (String) get(DISCUSSES);
     }
 
+    /**
+     *
+     * 
+     * @return The discussing publications string.
+     */
     public String getDiscussingPublications() {
         return (String) get(DISCUSSED_BY);
     }
 
+    /**
+     * This method is invoked by the {@link SciPublicationsAboutService} class when a discussing or
+     * discussed publication is added or removed to update the string properties. 
+     * 
+     */
     protected void update() {
 
         final Publication owner = new Publication((DataObject) get(OWNER));

ccm-sci-assets-publicationsabout/src/com/arsdigita/cms/contentassets/SciPublicationsAboutInitializer.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2013 Jens Pelzetter
+ * Copyright (c) 2014 Jens Pelzetter
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public License
@@ -103,7 +103,7 @@ public class SciPublicationsAboutInitializer extends CompoundInitializer {
                                   "com.arsdigita.cms.contentassets.SciPublicationsAboutResources"),
             40);
         
-        PublicationExtraXmlGenerator.addExteningGenerator(new SciPublicationsAboutExtraXMLGenerator());
+        PublicationExtraXmlGenerator.addExtentingGenerator(new SciPublicationsAboutExtraXMLGenerator());
     }
 
 }

ccm-sci-assets-publicationsabout/src/com/arsdigita/cms/contentassets/SciPublicationsAboutLoader.java

@@ -1,4 +1,3 @@
-
 /*
  * Copyright (c) 2014 Jens Pelzetter
  *

ccm-sci-assets-publicationsabout/src/com/arsdigita/cms/contentassets/SciPublicationsAboutService.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2010 Jens Pelzetter
+ * Copyright (c) 2014 Jens Pelzetter
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public License
@@ -92,6 +92,13 @@ public class SciPublicationsAboutService {
         final PublicationBundle discussedBundle = discussed.getPublicationBundle();
 
         discussingBundle.remove(DISCUSSING, discussedBundle);
+        final DataObject discussingAboutDobj = (DataObject) discussing.get(PUBLICATIONS_ABOUT);
+        final SciPublicationsAbout discussingAbout = new SciPublicationsAbout(discussingAboutDobj);
+        discussingAbout.update();
+        final DataObject discussedAboutDobj = (DataObject) discussed.get(PUBLICATIONS_ABOUT);
+        final SciPublicationsAbout discussedAbout = new SciPublicationsAbout(discussedAboutDobj);
+        discussedAbout.update();
+        
     }
 
     /**
@@ -123,6 +130,12 @@ public class SciPublicationsAboutService {
         final PublicationBundle discussingBundle = discussing.getPublicationBundle();
 
         discussedBundle.remove(DISCUSSED_BY, discussingBundle);
+        final DataObject discussingAboutDobj = (DataObject) discussing.get(PUBLICATIONS_ABOUT);
+        final SciPublicationsAbout discussingAbout = new SciPublicationsAbout(discussingAboutDobj);
+        discussingAbout.update();
+        final DataObject discussedAboutDobj = (DataObject) discussed.get(PUBLICATIONS_ABOUT);
+        final SciPublicationsAbout discussedAbout = new SciPublicationsAbout(discussedAboutDobj);
+        discussedAbout.update();
     }
 
 }

ccm-sci-assets-publicationspersons/application.xml

@@ -0,0 +1,33 @@
+<?xml version="1.0"?>
+<ccm:application xmlns:ccm="http://ccm.redhat.com/ccm-project"
+                 name="ccm-sci-assets-publicationspersons"
+                 prettyName="ScientificCMS Publications module asset for relatating publications and persons"
+                 version="6.6.0"
+                 release="1"
+                 webapp="ROOT">
+
+    <ccm:dependencies>
+        <ccm:requires name="ccm-core" version="6.6.0" release="ge"/>
+        <ccm:requires name="ccm-cms" version="6.6.0" release="ge"/>  
+        <ccm:requires name="ccm-sci-publications" version="6.6.5" relation="ge"/>  
+    </ccm:dependencies>
+
+    <ccm:directories>
+        <ccm:directory name="pdl"/>
+        <ccm:directory name="sql"/>
+        <ccm:directory name="src"/>
+    </ccm:directories>
+	    
+    <ccm:contacts>
+        <ccm:contact uri="http://www.scientificcms.org" type="website"/>
+        <ccm:contact uri="mailto:info@scientificcms.org" type="support"/>
+    </ccm:contacts>
+	
+    <ccm:description>
+        This assets for the SciPublications allows it to define associatons between a publication 
+        and one or more other persons. This asset is not intented as a replacement for the author 
+        field. This assets allows it to define associations to other persons, real or fictional, 
+        which are related to the publication. Examples are interviewed persons, main characters etc.
+    </ccm:description>
+
+</ccm:application>		 

ccm-sci-assets-publicationspersons/pdl/com/arsdigita/cms/contentassets/SciPublicationsPersons.pdl

@@ -0,0 +1,60 @@
+//
+// Copyright (C) 2014 Jens Pelzetter
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public License
+// as published by the Free Software Foundation; either version 2.1 of
+// the License, or (at your option) any later version.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+// Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+//
+//
+
+model com.arsdigita.cms.contentassets;
+
+import com.arsdigita.cms.contenttypes.GenericPersonBundle;
+import com.arsdigita.cms.contenttypes.PublicationBundle;
+import com.arsdigita.kernel.ACSObject;
+import com.arsdigita.cms.ContentItem;
+
+association {
+
+    PublicationBundle[0..n] publications = join cms_person_bundles.bundle_id
+                                       to ca_publications_persons.person_id,
+                                     join ca_publications_persons.publication_id
+                                       to ct_publication_bundles.bundle_id;
+
+
+    GenericPersonBundle[0..n] persons = join ct_publication_bundles.bundle_id
+                                          to ca_publications_persons.publication_id,
+                                        join ca_publications_persons.person_id
+                                          to cms_person_bundles.bundle_id;
+
+    String[0..1] relation = ca_publications_persons.relation;
+
+}
+
+object type SciPublicationsPersons extends ACSObject {
+
+    String[0..1] publications = ca_publications_persons_asset.publications;
+    String[0..1] persons = ca_publications_persons_asset.persons;
+
+    reference key ( ca_publications_persons_asset.asset_id );
+
+}
+
+association {
+
+    composite ContentItem[1..1] owner = join ca_publications_persons_asset.owner_id
+                                          to cms_items.item_id;
+
+    component SciPublicationsPersons[0..1] publicationsPersons = join cms_items.item_id
+                                                                   to ca_publications_persons_asset.owner_id;
+}

ccm-sci-assets-publicationspersons/sql/ccm-sci-assets-publicationspersons/oracle-se-create.sql

@@ -0,0 +1,2 @@
+@@ ddl/oracle-se/create.sql
+@@ ddl/oracle-se/deferred.sql

ccm-sci-assets-publicationspersons/sql/ccm-sci-assets-publicationspersons/postgres-create.sql

@@ -0,0 +1,4 @@
+begin;
+\i ddl/postgres/create.sql
+\i ddl/postgres/deferred.sql
+commit;

ccm-sci-assets-publicationspersons/src/WEB-INF/traversal-adapters/com/arsdigita/cms/contentassets/SciPublicationsPersons.xml

@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="utf-8"?>
+<xrd:adapters
+    xmlns:xrd="http://xmlns.redhat.com/schemas/waf/xml-renderer-rules"
+    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+    xsi:schemaLocation="http://rhea.redhat.com/schemas/waf/xml-renderer-rules xml-renderer-rules.xsd">
+    
+    <xrd:context name="com.arsdigita.cms.dispatcher.SimpleXMLGenerator">
+        <xrd:adapter objectType="com.arsdigita.cms.contentassets.SciPublicationsPersons">
+             
+        </xrd:adapter>
+    </xrd:context>
+    
+</xrd:adapters>

ccm-sci-assets-publicationspersons/src/ccm-sci-assets-publicationspersons.config

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<registry>
+<!--Nothing yet-->
+</registry>

ccm-sci-assets-publicationspersons/src/ccm-sci-assets-publicationspersons.load

@@ -0,0 +1,21 @@
+<load>
+    <requires>
+        <table name="inits"/>
+        <table name="acs_objects"/>
+        <table name="cms_items"/>
+        <table name="ct_publications"/>
+
+         <initializer class="com.arsdigita.cms.Initializer"/>
+         <initializer class="com.arsdigita.cms.contenttypes.PublicationInitializer"/>
+    </requires>
+
+    <provides>
+        <table name="ca_publications_persons"/>
+        <initializer class="com.arsdigita.cms.contentassets.SciPublicationsPersonsInitializer"/>
+    </provides>
+
+    <scripts>
+        <schema directory="ccm-sci-assets-publicationspersons"/>
+        <data class="com.arsdigita.cms.contentassets.SciPublicationsPersonsLoader"/>
+    </scripts>
+</load>

ccm-sci-assets-publicationspersons/src/com/arsdigita/cms/contentassets/SciPublicationsPersons.java

@@ -0,0 +1,162 @@
+/*
+ * Copyright (c) 2014 Jens Pelzetter
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public License
+ * as published by the Free Software Foundation; either version 2.1 of
+ * the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+package com.arsdigita.cms.contentassets;
+
+import com.arsdigita.cms.ContentItem;
+import com.arsdigita.cms.ItemCollection;
+import com.arsdigita.cms.contenttypes.GenericPerson;
+import com.arsdigita.cms.contenttypes.GenericPersonBundle;
+import com.arsdigita.cms.contenttypes.Publication;
+import com.arsdigita.cms.contenttypes.PublicationBundle;
+import com.arsdigita.domain.DomainObjectFactory;
+import com.arsdigita.kernel.ACSObject;
+import com.arsdigita.persistence.DataObject;
+
+/**
+ * Helper class for easy and efficient filtering
+ *
+ * @author Jens Pelzetter <jens@jp-digital.de>
+ * @version $Id$
+ */
+public class SciPublicationsPersons extends ACSObject {
+
+    public static final String BASE_DATA_OBJECT_TYPE
+                                   = "com.arsdigita.cms.contentassets.SciPublicationsPersons";
+
+    public static final String PUBLICATIONS = "publications";
+    public static final String PUBLICATIONS_PERSONS = "publicationsPersons";
+    public static final String PERSONS = "persons";
+    public static final String OWNER = "owner";
+
+    public SciPublicationsPersons() {
+        super(BASE_DATA_OBJECT_TYPE);
+    }
+
+    public SciPublicationsPersons(final String type) {
+        super(type);
+    }
+
+    public SciPublicationsPersons(final DataObject dataObject) {
+        super(dataObject);
+    }
+
+    public static SciPublicationsPersons create(final Publication owner) {
+        final PublicationBundle bundle = owner.getPublicationBundle();
+        final ItemCollection instances = bundle.getInstances();
+
+        Publication instance;
+        while (instances.next()) {
+            instance = (Publication) instances.getContentItem();
+            createForInstance(instance);
+        }
+
+        return new SciPublicationsPersons((DataObject) owner.get(PUBLICATIONS_PERSONS));
+    }
+
+    private static void createForInstance(final Publication instance) {
+        final SciPublicationsPersons persons = new SciPublicationsPersons();
+        persons.set(OWNER, instance);
+        persons.update();
+
+        persons.save();
+    }
+
+    public static SciPublicationsPersons create(final GenericPerson owner) {
+        final GenericPersonBundle bundle = owner.getGenericPersonBundle();
+        final ItemCollection instances = bundle.getInstances();
+
+        GenericPerson instance;
+        while (instances.next()) {
+            instance = (GenericPerson) instances.getContentItem();
+            createForInstance(instance);
+        }
+
+        return new SciPublicationsPersons((DataObject) owner.get(PUBLICATIONS_PERSONS));
+    }
+
+    private static void createForInstance(final GenericPerson instance) {
+        final SciPublicationsPersons persons = new SciPublicationsPersons();
+        persons.set(OWNER, instance);
+        persons.update();
+
+        persons.save();
+    }
+
+    public String getPersons() {
+        return (String) get(PERSONS);
+    }
+
+    public String getPublications() {
+        return (String) get(PUBLICATIONS);
+    }
+
+    protected void update() {
+
+        final ContentItem owner = (ContentItem) DomainObjectFactory.newInstance((DataObject) get(
+            OWNER));
+        final SciPublicationsPersonsService service = new SciPublicationsPersonsService();
+        
+        
+        if (owner instanceof Publication) {
+
+            final SciPublicationsPersonsPersonCollection persons = service.getPersons(
+                (Publication) owner);
+            final StringBuilder builder = new StringBuilder();
+            while (persons.next()) {
+                builder.append(persons.getPerson().getTitle());
+                builder.append(';');
+            }
+
+            final PublicationBundle bundle = ((Publication) owner).getPublicationBundle();
+            final ItemCollection instances = bundle.getInstances();
+            Publication instance;
+            SciPublicationsPersons asset;
+            while (instances.next()) {
+                instance = (Publication) instances.getContentItem();
+                asset = new SciPublicationsPersons((DataObject) instance.get(PUBLICATIONS_PERSONS));
+                
+                asset.set(PERSONS, builder.toString());
+            }
+            
+        } else if (owner instanceof GenericPerson) {
+
+            final SciPublicationsPersonsPublicationCollection publications = service
+                .getPublications((GenericPerson) owner);
+            final StringBuilder builder = new StringBuilder();
+            while(publications.next()) {
+                builder.append(publications.getPublication().getTitle());
+                builder.append(';');
+            }
+            
+            final GenericPersonBundle bundle = ((GenericPerson) owner).getGenericPersonBundle();
+            final ItemCollection instances = bundle.getInstances();
+            GenericPerson instance;
+            SciPublicationsPersons asset;
+            while(instances.next()) {
+                instance = (GenericPerson) instances.getContentItem();
+                asset = new SciPublicationsPersons((DataObject) instance.get(PUBLICATIONS_PERSONS));
+                
+                asset.set(PUBLICATIONS, builder.toString());
+            }
+
+        }
+        
+    }
+
+}

ccm-sci-assets-publicationspersons/src/com/arsdigita/cms/contentassets/SciPublicationsPersonsInitializer.java

@@ -0,0 +1,87 @@
+/*
+ * Copyright (c) 2014 Jens Pelzetter
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public License
+ * as published by the Free Software Foundation; either version 2.1 of
+ * the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+package com.arsdigita.cms.contentassets;
+
+import com.arsdigita.cms.contenttypes.ContentItemTraversalAdapter;
+import com.arsdigita.db.DbHelper;
+import com.arsdigita.domain.DomainObjectTraversalAdapter;
+import com.arsdigita.domain.xml.TraversalHandler;
+import com.arsdigita.persistence.pdl.ManifestSource;
+import com.arsdigita.persistence.pdl.NameFilter;
+import com.arsdigita.runtime.CompoundInitializer;
+import com.arsdigita.runtime.DomainInitEvent;
+import com.arsdigita.runtime.PDLInitializer;
+import com.arsdigita.runtime.RuntimeConfig;
+import com.arsdigita.xml.XML;
+
+/**
+ *
+ * @author Jens Pelzetter <jens@jp-digital.de>
+ * @version $Id$
+ */
+public class SciPublicationsPersonsInitializer extends CompoundInitializer {
+
+    public SciPublicationsPersonsInitializer() {
+        final String url = RuntimeConfig.getConfig().getJDBCURL();
+        final int database = DbHelper.getDatabaseFromURL(url);
+
+        add(new PDLInitializer(new ManifestSource(
+            "ccm-sci-assets-publicationspersons.pdl.mf",
+            new NameFilter(DbHelper.getDatabaseSuffix(database), "pdl"))));
+    }
+
+    @Override
+    public void init(final DomainInitEvent event) {
+
+        super.init(event);
+
+//        DomainObjectFactory.registerInstantiator(
+//            SciPublicationsPersons.BASE_DATA_OBJECT_TYPE,
+//            new DomainObjectInstantiator() {
+//
+//                @Override
+//                protected DomainObject doNewInstance(
+//                    final DataObject dataObject) {
+//                        return new SciPublicationsPersons(
+//                            dataObject);
+//                    }
+//
+//            });
+
+        final String traversal = "/WEB-INF/traversal-adapters/com/arsdigita/cms/contentassets/"
+                                 + "SciPublicationsPersons.xml";
+        XML.parseResource(traversal, new TraversalHandler() {
+
+            @Override
+            protected void registerAdapter(final String objectType,
+                                           final DomainObjectTraversalAdapter adapter,
+                                           final String context) {
+                ContentItemTraversalAdapter.registerAssetAdapter("publications", adapter, context);
+                ContentItemTraversalAdapter.registerAssetAdapter("persons", adapter, context);
+            }
+
+        });
+        
+        //ToDo Add authoring steps
+        
+        //ToDo Add extra xml generator
+        
+    }
+
+}

ccm-sci-assets-publicationspersons/src/com/arsdigita/cms/contentassets/SciPublicationsPersonsLoader.java

@@ -0,0 +1,36 @@
+/*
+ * Copyright (c) 2014 Jens Pelzetter
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public License
+ * as published by the Free Software Foundation; either version 2.1 of
+ * the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+package com.arsdigita.cms.contentassets;
+
+import com.arsdigita.loader.PackageLoader;
+import com.arsdigita.runtime.ScriptContext;
+
+/**
+ *
+ * @author Jens Pelzetter <jens@jp-digital.de>
+ * @version $Id$
+ */
+public class SciPublicationsPersonsLoader extends PackageLoader {
+
+    @Override
+    public void run(final ScriptContext ctx) {
+        //Nothing
+    }
+
+}

ccm-sci-assets-publicationspersons/src/com/arsdigita/cms/contentassets/SciPublicationsPersonsPersonCollection.java

@@ -0,0 +1,55 @@
+/*;
+ * Copyright (c) 2014 Jens Pelzetter
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public License
+ * as published by the Free Software Foundation; either version 2.1 of
+ * the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+package com.arsdigita.cms.contentassets;
+
+import com.arsdigita.cms.ContentBundle;
+import com.arsdigita.cms.contenttypes.GenericPerson;
+import com.arsdigita.domain.DomainCollection;
+import com.arsdigita.domain.DomainObjectFactory;
+import com.arsdigita.persistence.DataCollection;
+
+/**
+ *
+ * @author Jens Pelzetter <jens@jp-digital.de>
+ * @version $Id$
+ */
+public class SciPublicationsPersonsPersonCollection extends DomainCollection {
+
+    public SciPublicationsPersonsPersonCollection(final DataCollection dataCollection) {
+        super(dataCollection);
+
+        m_dataCollection.addOrder("name");
+    }
+
+    public GenericPerson getPerson() {
+        final ContentBundle bundle = (ContentBundle) DomainObjectFactory.newInstance(
+            m_dataCollection.getDataObject());
+
+        return (GenericPerson) bundle.getPrimaryInstance();
+    }
+
+    public GenericPerson getPublication(final String language) {
+        final ContentBundle bundle = (ContentBundle) DomainObjectFactory.newInstance(
+            m_dataCollection.getDataObject()
+        );
+
+        return (GenericPerson) bundle.getInstance(language);
+    }
+
+}

ccm-sci-assets-publicationspersons/src/com/arsdigita/cms/contentassets/SciPublicationsPersonsPublicationCollection.java

@@ -0,0 +1,55 @@
+/*;
+ * Copyright (c) 2014 Jens Pelzetter
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public License
+ * as published by the Free Software Foundation; either version 2.1 of
+ * the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+package com.arsdigita.cms.contentassets;
+
+import com.arsdigita.cms.ContentBundle;
+import com.arsdigita.cms.contenttypes.Publication;
+import com.arsdigita.domain.DomainCollection;
+import com.arsdigita.domain.DomainObjectFactory;
+import com.arsdigita.persistence.DataCollection;
+
+/**
+ *
+ * @author Jens Pelzetter <jens@jp-digital.de>
+ * @version $Id$
+ */
+public class SciPublicationsPersonsPublicationCollection extends DomainCollection {
+
+    public SciPublicationsPersonsPublicationCollection(final DataCollection dataCollection) {
+        super(dataCollection);
+
+        m_dataCollection.addOrder("name");
+    }
+
+    public Publication getPublication() {
+        final ContentBundle bundle = (ContentBundle) DomainObjectFactory.newInstance(
+            m_dataCollection.getDataObject());
+
+        return (Publication) bundle.getPrimaryInstance();
+    }
+
+    public Publication getPublication(final String language) {
+        final ContentBundle bundle = (ContentBundle) DomainObjectFactory.newInstance(
+            m_dataCollection.getDataObject()
+        );
+
+        return (Publication) bundle.getInstance(language);
+    }
+
+}

ccm-sci-assets-publicationspersons/src/com/arsdigita/cms/contentassets/SciPublicationsPersonsService.java

@@ -0,0 +1,104 @@
+/*
+ * Copyright (c) 2014 Jens Pelzetter
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public License
+ * as published by the Free Software Foundation; either version 2.1 of
+ * the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+package com.arsdigita.cms.contentassets;
+
+import com.arsdigita.cms.contenttypes.GenericPerson;
+import com.arsdigita.cms.contenttypes.GenericPersonBundle;
+import com.arsdigita.cms.contenttypes.Publication;
+import com.arsdigita.cms.contenttypes.PublicationBundle;
+import com.arsdigita.persistence.DataCollection;
+import com.arsdigita.persistence.DataObject;
+import com.redhat.persistence.metadata.Link;
+
+/**
+ * This class provides some convenient methods for dealing woth the Persons asset/mixin.
+ *
+ * @author Jens Pelzetter <jens@jp-digital.de>
+ * @version $Id$
+ */
+public class SciPublicationsPersonsService {
+
+    public static final String PERSONS = "persons";
+    public static final String PUBLICATIONS = "publications";
+    public static final String RELATION = "relation";
+    private static final String PUBLICATIONS_PERSONS = "publicationsPersons";
+
+    public SciPublicationsPersonsPublicationCollection getPublications(final GenericPerson person) {
+
+        final GenericPersonBundle bundle = person.getGenericPersonBundle();
+
+        final DataCollection dataCollection = (DataCollection) bundle.get(PUBLICATIONS);
+
+        return new SciPublicationsPersonsPublicationCollection(dataCollection);
+    }
+
+    public void addPublication(final GenericPerson person,
+                               final Publication publication,
+                               final String relation) {
+
+        final GenericPersonBundle personBundle = person.getGenericPersonBundle();
+        final PublicationBundle publicationBundle = publication.getPublicationBundle();
+
+        final DataObject link = personBundle.add(PUBLICATIONS, publicationBundle);
+        link.set(RELATION, relation);
+        link.save();
+
+        final DataObject asset1 = (DataObject) publication.get(PUBLICATIONS_PERSONS);
+        if (asset1 == null) {
+            SciPublicationsPersons.create(publication);
+        } else {
+            final SciPublicationsPersons persons = new SciPublicationsPersons(asset1);
+            persons.update();
+        }
+
+        final DataObject asset2 = (DataObject) person.get(PUBLICATIONS_PERSONS);
+        if (asset2 == null) {
+            SciPublicationsPersons.create(person);
+        } else {
+            final SciPublicationsPersons persons = new SciPublicationsPersons(asset2);
+            persons.update();
+        }
+    }
+
+    public void removePublication(final GenericPerson person,
+                                  final Publication publication) {
+        final GenericPersonBundle personBundle = person.getGenericPersonBundle();
+        final PublicationBundle publicationBundle = publication.getPublicationBundle();
+        
+        personBundle.remove(PUBLICATIONS, publicationBundle);
+        final DataObject dobj1 = (DataObject) person.get(PUBLICATIONS_PERSONS);
+        final SciPublicationsPersons persons1 = new SciPublicationsPersons(dobj1);
+        persons1.update();
+        final DataObject dobj2 = (DataObject) publication.get(PUBLICATIONS_PERSONS);
+        final SciPublicationsPersons persons2 = new SciPublicationsPersons(dobj2);
+        persons2.update();
+         
+    }
+    
+    public SciPublicationsPersonsPersonCollection getPersons(final Publication publication) {
+
+        final PublicationBundle bundle = publication.getPublicationBundle();
+
+        final DataCollection dataCollection = (DataCollection) bundle.get(PERSONS);
+
+        return new SciPublicationsPersonsPersonCollection(dataCollection);
+    }
+    
+   
+}

ccm-sci-publications/src/com/arsdigita/cms/contenttypes/ui/PublicationExtraXmlGenerator.java

@@ -47,7 +47,7 @@ public class PublicationExtraXmlGenerator implements ExtraXMLGenerator {
     private final static List<ExtraXMLGenerator> EXTENDING_GENERATORS = new ArrayList<ExtraXMLGenerator>();
     private boolean listMode;
 
-    public static void addExteningGenerator(final ExtraXMLGenerator generator) {
+    public static void addExtentingGenerator(final ExtraXMLGenerator generator) {
         EXTENDING_GENERATORS.add(generator);
     }