X-Git-Url: https://git.argeo.org/?a=blobdiff_plain;ds=sidebyside;f=org.argeo.eclipse.ui%2Fsrc%2Forg%2Fargeo%2Feclipse%2Fui%2Fjcr%2FNodesWrapper.java;fp=org.argeo.eclipse.ui%2Fsrc%2Forg%2Fargeo%2Feclipse%2Fui%2Fjcr%2FNodesWrapper.java;h=dcd3b42f692b64a3f2ed7be54c824edb15c9e368;hb=e61dd9dda88354091625cca85aa7c96d196688b3;hp=0000000000000000000000000000000000000000;hpb=cf3a914f6fbf31b43be5cb86e54d05e8543be6a9;p=lgpl%2Fargeo-commons.git

diff --git a/org.argeo.eclipse.ui/src/org/argeo/eclipse/ui/jcr/NodesWrapper.java b/org.argeo.eclipse.ui/src/org/argeo/eclipse/ui/jcr/NodesWrapper.java
new file mode 100644
index 000000000..dcd3b42f6
--- /dev/null
+++ b/org.argeo.eclipse.ui/src/org/argeo/eclipse/ui/jcr/NodesWrapper.java
@@ -0,0 +1,86 @@
+/*
+ * Copyright (C) 2007-2012 Argeo GmbH
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *         http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * 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.argeo.eclipse.ui.jcr;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import javax.jcr.Node;
+import javax.jcr.NodeIterator;
+import javax.jcr.RepositoryException;
+
+import org.argeo.ArgeoException;
+
+/**
+ * Element of tree which is based on a node, but whose children are not
+ * necessarily this node children.
+ */
+public class NodesWrapper {
+	private final Node node;
+
+	public NodesWrapper(Node node) {
+		super();
+		this.node = node;
+	}
+
+	protected NodeIterator getNodeIterator() throws RepositoryException {
+		return node.getNodes();
+	}
+
+	protected List<WrappedNode> getWrappedNodes() throws RepositoryException {
+		List<WrappedNode> nodes = new ArrayList<WrappedNode>();
+		for (NodeIterator nit = getNodeIterator(); nit.hasNext();)
+			nodes.add(new WrappedNode(this, nit.nextNode()));
+		return nodes;
+	}
+
+	public Object[] getChildren() {
+		try {
+			return getWrappedNodes().toArray();
+		} catch (RepositoryException e) {
+			throw new ArgeoException("Cannot get wrapped children", e);
+		}
+	}
+
+	/**
+	 * @return true by default because we don't want to compute the wrapped
+	 *         nodes twice
+	 */
+	public Boolean hasChildren() {
+		return true;
+	}
+
+	public Node getNode() {
+		return node;
+	}
+
+	@Override
+	public int hashCode() {
+		return node.hashCode();
+	}
+
+	@Override
+	public boolean equals(Object obj) {
+		if (obj instanceof NodesWrapper)
+			return node.equals(((NodesWrapper) obj).getNode());
+		else
+			return false;
+	}
+
+	public String toString() {
+		return "nodes wrapper based on " + node;
+	}
+}