Moving to root below branch label

git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@2005 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261

source/java/org/alfresco/repo/domain/hibernate/ChildAssocImpl.java

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+/*
+ * Copyright (C) 2005 Alfresco, Inc.
+ *
+ * Licensed under the Mozilla Public License version 1.1 
+ * with a permitted attribution clause. You may obtain a
+ * copy of the License at
+ *
+ *   http://www.alfresco.org/legal/license.txt
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
+ * either express or implied. See the License for the specific
+ * language governing permissions and limitations under the
+ * License.
+ */
+package org.alfresco.repo.domain.hibernate;
+
+import org.alfresco.repo.domain.ChildAssoc;
+import org.alfresco.repo.domain.Node;
+import org.alfresco.service.cmr.repository.ChildAssociationRef;
+import org.alfresco.service.namespace.QName;
+import org.alfresco.util.EqualsHelper;
+
+/**
+ * @author Derek Hulley
+ */
+public class ChildAssocImpl implements ChildAssoc
+{
+    private Long id;
+    private Node parent;
+    private Node child;
+    private QName typeQName;
+    private QName qName;
+    private boolean isPrimary;
+    private int index;
+    private transient ChildAssociationRef childAssocRef;
+    
+    public ChildAssocImpl()
+    {
+        setIndex(Integer.MAX_VALUE);              // comes last
+    }
+
+    public void buildAssociation(Node parentNode, Node childNode)
+    {
+        // add the forward associations
+        this.setParent(parentNode);
+        this.setChild(childNode);
+        // add the inverse associations
+        parentNode.getChildAssocs().add(this);
+        childNode.getParentAssocs().add(this);
+    }
+    
+    public void removeAssociation()
+    {
+        // maintain inverse assoc from parent node to this instance
+        this.getParent().getChildAssocs().remove(this);
+        // maintain inverse assoc from child node to this instance
+        this.getChild().getParentAssocs().remove(this);
+    }
+    
+    public synchronized ChildAssociationRef getChildAssocRef()
+    {
+        if (childAssocRef == null)
+        {
+            childAssocRef = new ChildAssociationRef(
+                    this.typeQName,
+                    getParent().getNodeRef(),
+                    this.qName,
+                    getChild().getNodeRef(),
+                    this.isPrimary,
+                    -1);
+        }
+        return childAssocRef;
+    }
+
+    public String toString()
+    {
+        StringBuffer sb = new StringBuffer(32);
+        sb.append("ChildAssoc")
+          .append("[ parent=").append(parent)
+          .append(", child=").append(child)
+          .append(", name=").append(getQname())
+          .append(", isPrimary=").append(isPrimary)
+          .append("]");
+        return sb.toString();
+    }
+
+    public boolean equals(Object obj)
+    {
+        if (obj == null)
+        {
+            return false;
+        }
+        else if (obj == this)
+        {
+            return true;
+        }
+        else if (!(obj instanceof ChildAssoc))
+        {
+            return false;
+        }
+        ChildAssoc that = (ChildAssoc) obj;
+        return (this.getIsPrimary() == that.getIsPrimary()
+                && EqualsHelper.nullSafeEquals(this.getTypeQName(), that.getTypeQName())
+                && EqualsHelper.nullSafeEquals(this.getQname(), that.getQname())
+                && EqualsHelper.nullSafeEquals(this.getParent(), that.getParent())
+                && EqualsHelper.nullSafeEquals(this.getChild(), that.getChild()));
+    }
+    
+    public int hashCode()
+    {
+        return (qName == null ? 0 : qName.hashCode());
+    }
+
+    /**
+     * Orders the child associations by ID.  A smaller ID has a higher priority.
+     * This may change once we introduce a changeable index against which to order.
+     */
+    public int compareTo(ChildAssoc another)
+    {
+        if (this == another)
+        {
+            return 0;
+        }
+        
+        int thisIndex = this.getIndex();
+        int anotherIndex = another.getIndex();
+        
+        Long thisId = this.getId();
+        Long anotherId = another.getId();
+
+        if (thisId == null)                     // this ID has not been set, make this instance greater
+        {
+            return -1; 
+        }
+        else if (anotherId == null)             // other ID has not been set, make this instance lesser
+        {
+            return 1;
+        }
+        else if (thisIndex == anotherIndex)     // use the explicit index
+        {
+            return thisId.compareTo(anotherId);
+        }
+        else                                    // fallback on order of creation 
+        {
+            return (thisIndex > anotherIndex) ? 1 : -1;     // a lower index, make this instance lesser
+        }
+    }
+
+    public Long getId()
+    {
+        return id;
+    }
+
+    /**
+     * For Hibernate use
+     */
+    private void setId(Long id)
+    {
+        this.id = id;
+    }
+
+    public Node getParent()
+    {
+        return parent;
+    }
+
+    /**
+     * For Hibernate use
+     */
+    private void setParent(Node parentNode)
+    {
+        this.parent = parentNode;
+    }
+
+    public Node getChild()
+    {
+        return child;
+    }
+
+    /**
+     * For Hibernate use
+     */
+    private void setChild(Node node)
+    {
+        child = node;
+    }
+    
+    public QName getTypeQName()
+    {
+        return typeQName;
+    }
+    
+    public void setTypeQName(QName typeQName)
+    {
+        this.typeQName = typeQName;
+    }
+    
+    public QName getQname()
+    {
+        return qName;
+    }
+
+    public void setQname(QName qname)
+    {
+        this.qName = qname;
+    }
+
+    public boolean getIsPrimary()
+    {
+        return isPrimary;
+    }
+
+    public void setIsPrimary(boolean isPrimary)
+    {
+        this.isPrimary = isPrimary;
+    }
+
+    public int getIndex()
+    {
+        return index;
+    }
+
+    public void setIndex(int index)
+    {
+        this.index = index;
+    }
+}