org.jgroups.util.NullFuture Maven / Gradle / Ivy
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This artifact provides a single jar that contains all classes required to use remote EJB and JMS, including
all dependencies. It is intended for use by those not using maven, maven users should just import the EJB and
JMS BOM's instead (shaded JAR's cause lots of problems with maven, as it is very easy to inadvertently end up
with different versions on classes on the class path).
package org.jgroups.util;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;
/**
* @author Bela Ban
*/
public class NullFuture implements NotifyingFuture {
final T retval;
public NullFuture(T retval) {
this.retval=retval;
}
public boolean cancel(boolean mayInterruptIfRunning) {
return true;
}
public boolean isCancelled() {
return true;
}
public boolean isDone() {
return true;
}
public T get() throws InterruptedException, ExecutionException {
return retval;
}
public T get(long timeout, TimeUnit unit) throws InterruptedException, ExecutionException, TimeoutException {
return retval;
}
public NotifyingFuture setListener(FutureListener listener) {
if(listener != null)
listener.futureDone(this);
return this;
}
}