Optimizations for RESTful API for managing containers

ccm-core/src/main/java/org/libreccm/api/pagemodels/dto/ComponentModelDto.java

@@ -0,0 +1,123 @@
+/*
+ * Copyright (C) 2020 LibreCCM Foundation.
+ *
+ * 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., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301  USA
+ */
+package org.libreccm.api.pagemodels.dto;
+
+import org.libreccm.pagemodel.ComponentModel;
+
+/**
+ *
+ * @author <a href="mailto:jens.pelzetter@googlemail.com">Jens Pelzetter</a>
+ */
+public class ComponentModelDto {
+    
+    private long componentModelId;
+    private String uuid;
+    private String modelUuid;
+    
+    private String key;
+    
+    private String type;
+    
+    private String idAttribute;
+    
+    private String classAttribute;
+    
+    private String styleAttribute;
+
+    ComponentModelDto() {
+        // Nothing
+    }
+    
+    ComponentModelDto(final ComponentModel fromComponentModel) {
+        this.componentModelId =fromComponentModel.getComponentModelId();
+        this.uuid = fromComponentModel.getUuid();
+        this.modelUuid = fromComponentModel.getModelUuid();
+        this.key = fromComponentModel.getKey();
+        this.idAttribute = fromComponentModel.getIdAttribute();
+        this.classAttribute = fromComponentModel.getClassAttribute();
+        this.styleAttribute = fromComponentModel.getStyleAttribute();
+    }
+    
+    public long getComponentModelId() {
+        return componentModelId;
+    }
+
+    public void setComponentModelId(final long componentModelId) {
+        this.componentModelId = componentModelId;
+    }
+
+    public String getUuid() {
+        return uuid;
+    }
+
+    public void setUuid(final String uuid) {
+        this.uuid = uuid;
+    }
+
+    public String getModelUuid() {
+        return modelUuid;
+    }
+
+    public void setModelUuid(final String modelUuid) {
+        this.modelUuid = modelUuid;
+    }
+
+    public String getKey() {
+        return key;
+    }
+
+    public void setKey(final String key) {
+        this.key = key;
+    }
+
+    public String getType() {
+        return type;
+    }
+
+    public void setType(final String type) {
+        this.type = type;
+    }
+
+    public String getIdAttribute() {
+        return idAttribute;
+    }
+
+    public void setIdAttribute(final String idAttribute) {
+        this.idAttribute = idAttribute;
+    }
+
+    public String getClassAttribute() {
+        return classAttribute;
+    }
+
+    public void setClassAttribute(final String classAttribute) {
+        this.classAttribute = classAttribute;
+    }
+
+    public String getStyleAttribute() {
+        return styleAttribute;
+    }
+
+    public void setStyleAttribute(final String styleAttribute) {
+        this.styleAttribute = styleAttribute;
+    }
+    
+    
+    
+}

ccm-core/src/main/java/org/libreccm/pagemodel/ComponentModel.java

@@ -53,11 +53,24 @@ import javax.persistence.Table;
 @Inheritance(strategy = InheritanceType.JOINED)
 @Table(name = "PAGE_MODEL_COMPONENT_MODELS", schema = CoreConstants.DB_SCHEMA)
 @NamedQueries({
-    @NamedQuery(name = "ComponentModel.findComponentByContainerAndKey",
+    @NamedQuery(
+        name = "ComponentModel.findComponentsOfContainer",
+        query = "SELECT c FROM ComponentModel c "
+                    + "WHERE c.container = :container "
+                    + "ORDER BY c.key"
+    ),
+    @NamedQuery(
+        name = "ComponentModel.countComponentsOfContainer",
+        query = "SELECT COUNT(c) FROM ComponentModel c "
+                    + "WHERE c.container = :container"
+    ),
+    @NamedQuery(
+        name = "ComponentModel.findComponentByContainerAndKey",
         query = "SELECT c "
                     + "FROM ComponentModel c "
                     + "WHERE c.container = :container "
-                            + "AND c.key = :key")
+                    + "AND c.key = :key"
+    )
 })
 public class ComponentModel implements Serializable {
 

ccm-core/src/main/java/org/libreccm/pagemodel/ComponentModelRepository.java

@@ -24,6 +24,7 @@ import org.libreccm.security.AuthorizationRequired;
 import org.libreccm.security.RequiresPrivilege;
 
 import java.util.HashMap;
+import java.util.List;
 import java.util.Map;
 import java.util.Objects;
 import java.util.Optional;
@@ -32,6 +33,7 @@ import javax.enterprise.context.RequestScoped;
 import javax.transaction.Transactional;
 
 import java.util.UUID;
+import java.util.stream.Stream;
 
 import javax.persistence.EntityGraph;
 import javax.persistence.NoResultException;
@@ -162,6 +164,54 @@ public class ComponentModelRepository
         }
     }
 
+    @Transactional(Transactional.TxType.REQUIRED)
+    public List<ComponentModel> findComponentsOfContainerAsList(
+        final ContainerModel containerModel,
+        final int limit,
+        final int offset
+    ) {
+        return getEntityManager()
+            .createNamedQuery(
+                "ComponentModel.findComponentsOfContainer",
+                ComponentModel.class
+            )
+            .setParameter("container", containerModel)
+            .setFirstResult(offset)
+            .setMaxResults(limit)
+            .getResultList();
+    }
+
+    @Transactional(Transactional.TxType.REQUIRED)
+    public Stream<ComponentModel> findComponentsOfContainerAsStream(
+        final ContainerModel containerModel,
+        final int limit,
+        final int offset
+    ) {
+        return getEntityManager()
+            .createNamedQuery(
+                "ComponentModel.findComponentsOfContainer",
+                ComponentModel.class
+            )
+            .setParameter("container", containerModel)
+            .setFirstResult(offset)
+            .setMaxResults(limit)
+            .getResultStream();
+    }
+
+    @Transactional(Transactional.TxType.REQUIRED)
+    public long countComponentsOfContainer(
+        final ContainerModel containerModel,
+        final int limit,
+        final int offset
+    ) {
+        return getEntityManager()
+            .createNamedQuery(
+                "ComponentModel.countComponentsOfContainer", Long.class
+            )
+            .setParameter("container", containerModel)
+            .getSingleResult();
+    }
+
     @Transactional(Transactional.TxType.REQUIRED)
     public Optional<ComponentModel> findComponentByContainerAndKey(
         final ContainerModel containerModel,

ccm-core/src/main/java/org/libreccm/pagemodel/ContainerModel.java

@@ -61,7 +61,9 @@ import javax.xml.bind.annotation.XmlTransient;
 @NamedQueries({
     @NamedQuery(
         name = "ContainerModel.findContainersOfPageModel",
-        query = "SELECT c FROM ContainerModel c WHERE c.pageModel = :pageModel"
+        query = "SELECT c FROM ContainerModel c "
+            + "WHERE c.pageModel = :pageModel "
+            + "ORDER BY c.key"
     ),
     @NamedQuery(
         name = "ContainerModel.countContainersOfPageModel",