--- /dev/null
+/*******************************************************************************
+ * Copyright (c) 2000, 2003 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Common Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/cpl-v10.html
+ *
+ * Contributors:
+ * IBM Corporation - initial API and implementation
+ *******************************************************************************/
+
+package net.sourceforge.phpdt.ui;
+
+import net.sourceforge.phpdt.core.ICompilationUnit;
+
+import org.eclipse.ui.IEditorInput;
+
+/**
+ * Extension interface for <code>IWorkingCopyManager</code>.
+ *
+ * @since 2.1
+ */
+public interface IWorkingCopyManagerExtension {
+
+ /**
+ * Sets the given working copy for the given editor input. If the given
+ * editor input is not connected to this working copy manager, this call has
+ * no effect.
+ * <p>
+ * This working copy manager does not assume the ownership of this working
+ * copy, i.e., the given working copy is not automatically be freed when
+ * this manager is shut down.
+ *
+ * @param input
+ * the editor input
+ * @param workingCopy
+ * the working copy
+ */
+ void setWorkingCopy(IEditorInput input, ICompilationUnit workingCopy);
+
+ /**
+ * Removes the working copy set for the given editor input. If there is no
+ * working copy set for this input or this input is not connected to this
+ * working copy manager, this call has no effect.
+ *
+ * @param input
+ * the editor input
+ */
+ void removeWorkingCopy(IEditorInput input);
+}