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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.jobmanager;

import org.apache.flink.api.common.JobID;
import org.apache.flink.runtime.jobgraph.JobGraph;

/** {@link JobGraphWriter} implementation which does not allow to store {@link JobGraph}. */
public enum ThrowingJobGraphWriter implements JobGraphWriter {
    INSTANCE;

    @Override
    public void putJobGraph(JobGraph jobGraph) {
        throw new UnsupportedOperationException("Cannot store job graphs.");
    }

    @Override
    public void removeJobGraph(JobID jobId) {}

    @Override
    public void releaseJobGraph(JobID jobId) {}
}