/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.flink.streaming.api.operators.async.queue;
import java.util.Collection;
import org.apache.flink.annotation.Internal;
/**
* {@link AsyncResult} sub class for asynchronous result collections.
*
* @param <T> Type of the collection elements.
*/
@Internal
public interface AsyncCollectionResult<T> extends AsyncResult {
boolean hasTimestamp();
long getTimestamp();
/**
* Return the asynchronous result collection.
*
* @return the asynchronous result collection
* @throws Exception if the asynchronous result collection could not be completed
*/
Collection<T> get() throws Exception;
}