org.apache.flink.runtime.io.network.partition.ResultPartitionType Maven / Gradle / Ivy
/*
* 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.runtime.io.network.partition;
public enum ResultPartitionType {
BLOCKING(true, false, false),
PIPELINED(false, true, true),
PIPELINED_PERSISTENT(true, true, true);
/** Does the partition live longer than the consuming task? */
private final boolean isPersistent;
/** Can the partition be consumed while being produced? */
private final boolean isPipelined;
/** Does the partition produce back pressure when not consumed? */
private final boolean hasBackPressure;
/**
* Specifies the behaviour of an intermediate result partition at runtime.
*/
ResultPartitionType(boolean isPersistent, boolean isPipelined, boolean hasBackPressure) {
this.isPersistent = isPersistent;
this.isPipelined = isPipelined;
this.hasBackPressure = hasBackPressure;
}
public boolean hasBackPressure() {
return hasBackPressure;
}
public boolean isBlocking() {
return !isPipelined;
}
public boolean isPipelined() {
return isPipelined;
}
public boolean isPersistent() {
return isPersistent;
}
}