--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/org.eclipse.core.commands/src/org/eclipse/core/commands/common/NamedHandleObject.d	Sat Mar 14 18:23:29 2009 +0100
@@ -0,0 +1,84 @@
+/*******************************************************************************
+ * Copyright (c) 2004, 2006 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ * Port to the D programming language:
+ *     Frank Benoit <benoit@tionex.de>
+ *******************************************************************************/
+module org.eclipse.core.commands.common.NamedHandleObject;
+
+import org.eclipse.core.commands.common.HandleObject;
+import org.eclipse.core.commands.common.NotDefinedException;
+import java.lang.all;
+
+/**
+ * A handle object that carries with it a name and a description. This type of
+ * handle object is quite common across the commands code base. For example,
+ * <code>Command</code>, <code>Context</code> and <code>Scheme</code>.
+ *
+ * @since 3.1
+ */
+public abstract class NamedHandleObject : HandleObject {
+
+    /**
+     * The description for this handle. This value may be <code>null</code> if
+     * the handle is undefined or has no description.
+     */
+    protected String description = null;
+
+    /**
+     * The name of this handle. This valud should not be <code>null</code>
+     * unless the handle is undefined.
+     */
+    protected String name = null;
+
+    /**
+     * Constructs a new instance of <code>NamedHandleObject</code>.
+     *
+     * @param id
+     *            The identifier for this handle; must not be <code>null</code>.
+     */
+    protected this(String id) {
+        super(id);
+    }
+
+    /**
+     * Returns the description for this handle.
+     *
+     * @return The description; may be <code>null</code> if there is no
+     *         description.
+     * @throws NotDefinedException
+     *             If the handle is not currently defined.
+     */
+    public String getDescription() {
+        if (!isDefined()) {
+            throw new NotDefinedException(
+                    "Cannot get a description from an undefined object. " //$NON-NLS-1$
+                    ~ id);
+        }
+
+        return description;
+    }
+
+    /**
+     * Returns the name for this handle.
+     *
+     * @return The name for this handle; never <code>null</code>.
+     * @throws NotDefinedException
+     *             If the handle is not currently defined.
+     */
+    public String getName() {
+        if (!isDefined()) {
+            throw new NotDefinedException(
+                    "Cannot get the name from an undefined object. " //$NON-NLS-1$
+                    ~ id);
+        }
+
+        return name;
+    }
+}