[exo-jcr-commits] exo-jcr SVN: r2257 - jcr/branches/1.14.x/exo.jcr.component.core/src/main/java/org/exoplatform/services/jcr/datamodel.

[do-not-reply at jboss.org]

Author: tolusha
Date: 2010-04-09 08:39:05 -0400 (Fri, 09 Apr 2010)
New Revision: 2257

Added:
   jcr/branches/1.14.x/exo.jcr.component.core/src/main/java/org/exoplatform/services/jcr/datamodel/NullNodeData.java
Log:
EXOJCR-609: add NullNodeData class

Added: jcr/branches/1.14.x/exo.jcr.component.core/src/main/java/org/exoplatform/services/jcr/datamodel/NullNodeData.java
===================================================================
--- jcr/branches/1.14.x/exo.jcr.component.core/src/main/java/org/exoplatform/services/jcr/datamodel/NullNodeData.java	                        (rev 0)
+++ jcr/branches/1.14.x/exo.jcr.component.core/src/main/java/org/exoplatform/services/jcr/datamodel/NullNodeData.java	2010-04-09 12:39:05 UTC (rev 2257)
@@ -0,0 +1,145 @@
+/*
+ * Copyright (C) 2010 eXo Platform SAS.
+ *
+ * This 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 software 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 software; if not, write to the Free
+ * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
+ */
+package org.exoplatform.services.jcr.datamodel;
+
+import org.exoplatform.services.jcr.access.AccessControlList;
+import org.exoplatform.services.jcr.dataflow.ItemDataVisitor;
+
+import javax.jcr.RepositoryException;
+
+/**
+ * This class is used to represent <code>null</code> value, it is designed to be used  
+ * into the cache to represent missing value.
+ * 
+ * @author <a href="anatoliy.bazko at exoplatform.org">Anatoliy Bazko</a>
+ * @version $Id: NullNodeData.java 111 2010-11-11 11:11:11Z tolusha $
+ */
+public class NullNodeData implements NodeData
+{
+
+   private final String id;
+
+   private final String parentId;
+
+   private final QPath path;
+
+   public NullNodeData(NodeData parentData, QPathEntry name)
+   {
+      this.parentId = parentData.getIdentifier();
+      this.path = QPath.makeChildPath(parentData.getQPath(), name);
+      this.id = parentId + "$" + name.asString();
+   }
+
+   public NullNodeData(String id)
+   {
+      this.parentId = null;
+      this.path = new QPath(new QPathEntry[]{new QPathEntry(null, null, 0)});
+      this.id = id;
+   }
+
+   /**
+    * {@inheritDoc}
+    */
+   @Override
+   public AccessControlList getACL()
+   {
+      return null;
+   }
+
+   /**
+    * {@inheritDoc}
+    */
+   @Override
+   public InternalQName[] getMixinTypeNames()
+   {
+      return null;
+   }
+
+   /**
+    * {@inheritDoc}
+    */
+   @Override
+   public int getOrderNumber()
+   {
+      return 0;
+   }
+
+   /**
+    * {@inheritDoc}
+    */
+   @Override
+   public InternalQName getPrimaryTypeName()
+   {
+      return null;
+   }
+
+   /**
+    * {@inheritDoc}
+    */
+   @Override
+   public void accept(ItemDataVisitor visitor) throws RepositoryException
+   {
+   }
+
+   /**
+    * {@inheritDoc}
+    */
+   @Override
+   public String getIdentifier()
+   {
+      return id;
+   }
+
+   /**
+    * {@inheritDoc}
+    */
+   @Override
+   public String getParentIdentifier()
+   {
+      return parentId;
+   }
+
+   /**
+    * {@inheritDoc}
+    */
+   @Override
+   public int getPersistedVersion()
+   {
+      return 0;
+   }
+
+   /**
+    * {@inheritDoc}
+    */
+   @Override
+   public QPath getQPath()
+   {
+      return path;
+   }
+
+   /**
+    * {@inheritDoc}
+    */
+   @Override
+   public boolean isNode()
+   {
+      return true;
+   }
+
+}