1 files changed, 49 insertions, 0 deletions
diff --git a/common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/internal/transformer/CommandTransformer.java b/common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/internal/transformer/CommandTransformer.java
new file mode 100644
index 0000000000..440143317e
--- /dev/null
+++ b/common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/internal/transformer/CommandTransformer.java
@@ -0,0 +1,49 @@
+/*******************************************************************************
+ * Copyright (c) 2013 Oracle. 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:
+ *     Oracle - initial API and implementation
+ ******************************************************************************/
+package org.eclipse.jpt.common.utility.internal.transformer;
+
+import org.eclipse.jpt.common.utility.command.Command;
+import org.eclipse.jpt.common.utility.internal.ObjectTools;
+import org.eclipse.jpt.common.utility.transformer.Transformer;
+
+/**
+ * Adapt a {@link Command} to the {@link Transformer} interface.
+ * The transformer will always return <code>null</code>.
+ * 
+ * @param <I> input: the type of the object passed to the transformer;
+ *     ignored
+ * @param <O> output: the type of the object returned by the transformer;
+ *     always <code>null</code>
+ * 
+ * @see org.eclipse.jpt.common.utility.internal.command.TransformerCommand
+ */
+public class CommandTransformer<I, O>
+	implements Transformer<I, O>
+{
+	private final Command command;
+
+	public CommandTransformer(Command command) {
+		super();
+		if (command == null) {
+			throw new NullPointerException();
+		}
+		this.command = command;
+	}
+
+	public O transform(I input) {
+		this.command.execute();
+		return null;
+	}
+
+	@Override
+	public String toString() {
+		return ObjectTools.toString(this, this.command);
+	}
+}