org.apache.flink.runtime.OperatorIDPair Maven / Gradle / Ivy
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* 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;
import org.apache.flink.runtime.jobgraph.OperatorID;
import javax.annotation.Nullable;
import java.io.Serializable;
import java.util.Optional;
/** Formed of a mandatory operator ID and optionally a user defined operator ID. */
public class OperatorIDPair implements Serializable {
private static final long serialVersionUID = 1L;
private final OperatorID generatedOperatorID;
private final OperatorID userDefinedOperatorID;
private OperatorIDPair(
OperatorID generatedOperatorID, @Nullable OperatorID userDefinedOperatorID) {
this.generatedOperatorID = generatedOperatorID;
this.userDefinedOperatorID = userDefinedOperatorID;
}
public static OperatorIDPair of(
OperatorID generatedOperatorID, @Nullable OperatorID userDefinedOperatorID) {
return new OperatorIDPair(generatedOperatorID, userDefinedOperatorID);
}
public static OperatorIDPair generatedIDOnly(OperatorID generatedOperatorID) {
return new OperatorIDPair(generatedOperatorID, null);
}
public OperatorID getGeneratedOperatorID() {
return generatedOperatorID;
}
public Optional getUserDefinedOperatorID() {
return Optional.ofNullable(userDefinedOperatorID);
}
}