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diff --git a/sca-java-1.x/tags/java-stable-20060304/sca/model/src/main/java/org/apache/tuscany/model/util/ModelContentHandler.java b/sca-java-1.x/tags/java-stable-20060304/sca/model/src/main/java/org/apache/tuscany/model/util/ModelContentHandler.java
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+++ b/sca-java-1.x/tags/java-stable-20060304/sca/model/src/main/java/org/apache/tuscany/model/util/ModelContentHandler.java
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+/**
+ *
+ *  Copyright 2005 The Apache Software Foundation or its licensors, as applicable.
+ *
+ *  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.apache.tuscany.model.util;
+
+import java.util.List;
+import java.util.Map;
+
+/**
+ * A model content handler. This mimics a SAX content handler for models and
+ * receives notification of the content of a model. A model content handler is
+ * responsible for handling model content notifications. As part of the handling
+ * the handler can produce new contents.
+ */
+public interface ModelContentHandler {
+
+	/**
+	 * Starts handling of a model.
+	 */
+	public void startModel();
+
+	/**
+	 * Ends handling of a model.
+	 */
+	public void endModel();
+
+	/**
+	 * Sets the contents list, where the content handler should store
+	 * the contents that it produces.
+	 * @param contents The contents to set
+	 */
+	public void setContents(List contents);
+
+	/**
+	 * Sets the linkers list. A content handler can add linker objects to this
+	 * list. Linker objects must implement java.lang.Runnable. They are
+	 * run as part of the endModel notification processing.
+	 * Typically linker objects are used to resolve model forward references
+	 * or establish model relationships after the model content has been
+	 * handled.
+	 * @param linkers The linkers to set
+	 */
+	public void setLinkers(List linkers);
+
+	/**
+	 * Sets the targets map. This map keeps track of the objects returned by
+	 * the content handler for each object passed to its doSwitch method.
+	 * @param targets The targets to set
+	 */
+	public void setTargets(Map targets);
+
+	/**
+	 * This method dispatches handling of the given object (XYZ for example) to a
+	  * corresponding "caseXYZ()" method on the content handler.
+	 */
+	public Object doSwitch(Object object);
+
+}