flink-optimizer/src/main/java/org/apache/flink/optimizer/plan/SinkPlanNode.java

/*
 * 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.optimizer.plan;

import org.apache.flink.optimizer.dag.DataSinkNode;
import org.apache.flink.runtime.operators.DriverStrategy;

/** Plan candidate node for data flow sinks. */
public class SinkPlanNode extends SingleInputPlanNode {

    /**
     * Constructs a new sink candidate node that uses <i>NONE</i> as its local strategy. Note that
     * local sorting and range partitioning are handled by the incoming channel already.
     *
     * @param template The template optimizer node that this candidate is created for.
     */
    public SinkPlanNode(DataSinkNode template, String nodeName, Channel input) {
        super(template, nodeName, input, DriverStrategy.NONE);

        this.globalProps = input.getGlobalProperties().clone();
        this.localProps = input.getLocalProperties().clone();
    }

    public DataSinkNode getSinkNode() {
        if (this.template instanceof DataSinkNode) {
            return (DataSinkNode) this.template;
        } else {
            throw new RuntimeException();
        }
    }
}