com.hazelcast.org.apache.calcite.rel.mutable.MutableSingleRel 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 com.hazelcast.org.apache.calcite.rel.mutable;
import com.hazelcast.org.apache.calcite.rel.type.RelDataType;
import com.hazelcast.com.google.common.collect.ImmutableList;
import java.util.List;
/** Mutable equivalent of {@link com.hazelcast.org.apache.calcite.rel.SingleRel}. */
abstract class MutableSingleRel extends MutableRel {
protected MutableRel input;
@SuppressWarnings("initialization.invalid.field.write.initialized")
protected MutableSingleRel(MutableRelType type,
RelDataType rowType, MutableRel input) {
super(input.cluster, rowType, type);
this.input = input;
input.parent = this;
input.ordinalInParent = 0;
}
@Override public void setInput(int ordinalInParent, MutableRel input) {
if (ordinalInParent > 0) {
throw new IllegalArgumentException();
}
this.input = input;
if (input != null) {
input.parent = this;
input.ordinalInParent = 0;
}
}
@Override public List getInputs() {
return ImmutableList.of(input);
}
@Override public void childrenAccept(MutableRelVisitor visitor) {
visitor.visit(input);
}
public MutableRel getInput() {
return input;
}
}
© 2015 - 2024 Weber Informatics LLC | Privacy Policy