android_external_GmsLib/src/com/google/android/gms/common/api/PendingResult.java

44 lines
1.7 KiB
Java

package com.google.android.gms.common.api;
import java.util.concurrent.TimeUnit;
/**
* Represents a pending result from calling an API method in Google Play services. The final result
* object from a PendingResult is of type R, which can be retrieved in one of two ways.
* <p/>
* <ul>
* <li>via blocking calls to {@link #await()}, or {@link #await(long, TimeUnit)}, or</li>
* <li>via a callback by passing in an object implementing interface {@link ResultCallback} to
* {@link #setResultCallback(ResultCallback)}.</li>
* </ul>
* After the result has been retrieved using {@link #await()} or delivered to the result callback,
* it is an error to attempt to retrieve the result again. It is the responsibility of the caller
* or callback receiver to release any resources associated with the returned result. Some result
* types may implement {@link Releasable}, in which case {@link Releasable#release()} should be
* used to free the associated resources.
* <p/>
* TODO: Docs
*/
public interface PendingResult<R extends Result> {
/**
* Blocks until the task is completed. This is not allowed on the UI thread. The returned
* result object can have an additional failure mode of INTERRUPTED.
*/
public R await();
/**
* Blocks until the task is completed or has timed out waiting for the result. This is not
* allowed on the UI thread. The returned result object can have an additional failure mode
* of either INTERRUPTED or TIMEOUT.
*/
public R await(long time, TimeUnit unit);
public void cancel();
public boolean isCanceled();
public void setResultCallback(ResultCallback<R> callback, long time, TimeUnit unit);
public void setResultCallback(ResultCallback<R> callback);
}