net.spy.memcached.internal.ImmediateFuture Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of arcus-java-client Show documentation

Java client for Arcus memcached

The newest version!

/**
 *
 */
package net.spy.memcached.internal;

import java.util.concurrent.ExecutionException;
import java.util.concurrent.Future;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;

/**
 * A future that fires immediately.
 */
public class ImmediateFuture implements Future {
  private final Boolean value;
  private final ExecutionException exception;

  public ImmediateFuture(Boolean returnValue) {
    value = returnValue;
    exception = null;
  }

  public ImmediateFuture(Exception e) {
    value = null;
    exception = new ExecutionException(e);
  }

  public boolean cancel(boolean mayInterruptIfRunning) {
    return false;
  }

  public Boolean get() throws InterruptedException, ExecutionException {
    if (exception != null) {
      throw exception;
    }
    return value;
  }

  public Boolean get(long timeout, TimeUnit unit)
          throws InterruptedException, ExecutionException,
          TimeoutException {
    if (exception != null) {
      throw exception;
    }
    return value;
  }

  public boolean isCancelled() {
    return false;
  }

  public boolean isDone() {
    return true;
  }

}