/*
* 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.dag;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import org.apache.flink.api.common.operators.SemanticProperties;
import org.apache.flink.api.common.operators.SingleInputOperator;
import org.apache.flink.api.common.operators.SingleInputSemanticProperties;
import org.apache.flink.api.common.operators.util.FieldSet;
import org.apache.flink.optimizer.DataStatistics;
import org.apache.flink.optimizer.operators.OperatorDescriptorSingle;
public class UnaryOperatorNode extends SingleInputNode {
private final List<OperatorDescriptorSingle> operators;
private final String name;
public UnaryOperatorNode(String name, SingleInputOperator<?, ?, ?> operator, boolean onDynamicPath) {
super(operator);
this.name = name;
this.operators = new ArrayList<>();
this.onDynamicPath = onDynamicPath;
}
public UnaryOperatorNode(String name, FieldSet keys, OperatorDescriptorSingle ... operators) {
this(name, keys, Arrays.asList(operators));
}
public UnaryOperatorNode(String name, FieldSet keys, List<OperatorDescriptorSingle> operators) {
super(keys);
this.operators = operators;
this.name = name;
}
@Override
protected List<OperatorDescriptorSingle> getPossibleProperties() {
return this.operators;
}
@Override
public String getOperatorName() {
return this.name;
}
@Override
public SemanticProperties getSemanticProperties() {
return new SingleInputSemanticProperties.AllFieldsForwardedProperties();
}
@Override
protected void computeOperatorSpecificDefaultEstimates(DataStatistics statistics) {
// we have no estimates by default
}
}