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/*******************************************************************************
* Copyright (c) 2012, 2016 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.closure;
import org.eclipse.jpt.common.utility.closure.InterruptibleBiClosure;
import org.eclipse.jpt.common.utility.internal.ObjectTools;
/**
* Closure wrapper that can have its wrapped closure changed,
* allowing a client to change a previously-supplied closure's
* behavior mid-stream.
*
* @param <A1> the type of the first object passed to the closure
* @param <A2> the type of the second object passed to the closure
*
* @see #setClosure(InterruptibleBiClosure)
*/
public class InterruptibleBiClosureWrapper<A1, A2>
implements InterruptibleBiClosure<A1, A2>
{
protected volatile InterruptibleBiClosure<? super A1, ? super A2> closure;
public InterruptibleBiClosureWrapper(InterruptibleBiClosure<? super A1, ? super A2> closure) {
super();
if (closure == null) {
throw new NullPointerException();
}
this.closure = closure;
}
public void execute(A1 argument1, A2 argument2) throws InterruptedException {
this.closure.execute(argument1, argument2);
}
public void setClosure(InterruptibleBiClosure<? super A1, ? super A2> closure) {
if (closure == null) {
throw new NullPointerException();
}
this.closure = closure;
}
@Override
public String toString() {
return ObjectTools.toString(this, this.closure);
}
}
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