Having managed to get WCM-DEV royally screwed up, I made a new branch,

WCM-DEV2 and added back my changes.  


git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/BRANCHES/WCM-DEV2/root@2804 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261

source/java/org/alfresco/repo/avm/AVMNode.java

@@ -0,0 +1,243 @@
+/*
+ * Copyright (C) 2006 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.avm;
+
+import org.alfresco.repo.avm.hibernate.AVMNodeBean;
+import org.alfresco.repo.avm.hibernate.DirectoryNodeBean;
+
+/**
+ * Base class for all repository file system like objects.
+ * @author britt
+ */
+public abstract class AVMNode
+{
+    /**
+     * The AVMNodeBean that contains our data.
+     */
+    private AVMNodeBean fData;
+    
+    /**
+     * Default constructor.
+     */
+    protected AVMNode()
+    {
+        fData = null;
+    }
+    
+    /**
+     * Set the ancestor of this node.
+     * @param ancestor The ancestor to set.
+     */
+    public void setAncestor(AVMNode ancestor)
+    {
+        fData.setAncestor(ancestor.getDataBean());
+    }
+
+    /**
+     * Get the ancestor of this node.
+     * @return The ancestor of this node.
+     */
+    public AVMNode getAncestor()
+    {
+        return AVMNodeFactory.CreateFromBean(fData.getAncestor());
+    }
+    
+    /**
+     * Set the merged from node.
+     * @param mergedFrom The merged from node.
+     */
+    public void setMergedFrom(AVMNode mergedFrom)
+    {
+        fData.setMergedFrom(mergedFrom.getDataBean());
+    }
+    
+    /**
+     * Get the node this was merged from.
+     * @return The node this was merged from.
+     */
+    public AVMNode getMergedFrom()
+    {
+        return AVMNodeFactory.CreateFromBean(fData.getMergedFrom());
+    }
+    
+    /**
+     * Should this be copied on modification.
+     */
+    public boolean shouldBeCopied()
+    {
+        return !fData.getIsNew();
+    }
+   
+    /**
+     * Set to need copying or not.
+     * @param copyable Whether this should be copied.
+     */
+    public void setShouldBeCopied(boolean copyable)
+    {
+        fData.setIsNew(!copyable);
+    }
+    
+    /**
+     * Get the version number.
+     * @return The version number.
+     */
+    public long getVersion()
+    {
+        return fData.getVersionID();
+    }
+    
+    /**
+     * Set the version number.
+     * @param version The version number to set.
+     */
+    public void setVersion(long version)
+    {
+        fData.setVersionID(version);
+    }
+    
+    /**
+     * Get the branch id of this node.
+     * @return The branch id.
+     */
+    public long getBranchID()
+    {
+        return fData.getBranchID();
+    }
+    
+    /**
+     * Set the branch id on this node.
+     * @param branchID The id to set.
+     */
+    public void setBranchID(long branchID)
+    {
+        fData.setBranchID(branchID);
+    }
+    
+    /**
+     * Get the (possibly null) parent.
+     * @return The parent or null.
+     */
+    public DirectoryNode getParent()
+    {
+        return (DirectoryNode)AVMNodeFactory.CreateFromBean(fData.getParent());
+    }
+
+    /**
+     * Set the parent of this node.
+     * @param parent The DirectoryNode to set.
+     */
+    public void setParent(DirectoryNode parent)
+    {
+        fData.setParent((DirectoryNodeBean)parent.getDataBean());
+    }
+    
+    /**
+     * Perform a COW if required.
+     * @param lPath The lookup path.
+     * @return A 'copied' version of this node.
+     */
+    public AVMNode copyOnWrite(Lookup lPath)
+    {
+        AVMNode newMe = possiblyCopy(lPath);
+        String myName = lPath.getName();
+        lPath.upCurrentNode();
+        if (newMe == null)
+        {
+            return this;
+        }
+        Repository repos = getRepository();
+        newMe.setVersion(repos.getLatestVersion() + 1);
+        DirectoryNode parent = null;
+        if (getParent() != null)
+        {
+            parent = (DirectoryNode)lPath.getCurrentNode();
+        }
+        if (parent != null)  
+        {
+            DirectoryNode newParent =
+                (DirectoryNode)parent.copyOnWrite(lPath);
+            newParent.putChild(myName, newMe);
+            newMe.setParent(newParent);
+        }
+        else // Null parent means root of repository.
+        {
+            newMe.setRepository(getRepository());
+            repos.setNewRoot((DirectoryNode)newMe);
+        }
+        newMe.setShouldBeCopied(false);
+        repos.setNew(newMe);
+        return newMe;
+    }
+
+
+    /**
+     * Possibly copy ourselves.
+     * @param lPath The Lookup for this node.
+     * @return A copy of ourself or null if no copy was necessary.
+     */
+    public abstract AVMNode possiblyCopy(Lookup lPath);
+    
+    /**
+     * Handle any after recursive copy processing.
+     * 
+     * @param parent The DirectoryNode that is the parent of 
+     * this copied node, after recursive copying.
+     */
+    public abstract void handlePostCopy(DirectoryNode parent);
+    
+    /**
+     * Set the repository for a node.
+     * @param repo The Repository to set.
+     */
+    public void setRepository(Repository repo)
+    {
+        fData.setRepository(repo.getDataBean());
+    }
+
+    /**
+     * Get the Repository we 'belong' to.
+     * @return The Repository.
+     */
+    public Repository getRepository()
+    {
+        return RepositoryFactory.GetInstance().createFromBean(fData.getRepository());
+    }
+    
+    /**
+     * Get the data bean in this node.
+     * @return The data bean.
+     */
+    public AVMNodeBean getDataBean()
+    {
+        return fData;
+    }
+    
+    /**
+     * Set the data bean in this node.
+     * @param bean The data bean to set.
+     */
+    public void setDataBean(AVMNodeBean bean)
+    {
+        fData = bean;
+    }
+    
+    /**
+     * Get the type of this node.
+     */
+    public abstract AVMNodeType getType();
+}