com.hazelcast.org.apache.calcite.rel.logical.LogicalUnion 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.logical;
import com.hazelcast.org.apache.calcite.plan.Convention;
import com.hazelcast.org.apache.calcite.plan.RelOptCluster;
import com.hazelcast.org.apache.calcite.plan.RelTraitSet;
import com.hazelcast.org.apache.calcite.rel.RelInput;
import com.hazelcast.org.apache.calcite.rel.RelNode;
import com.hazelcast.org.apache.calcite.rel.RelShuttle;
import com.hazelcast.org.apache.calcite.rel.core.Union;
import com.hazelcast.org.apache.calcite.rel.hint.RelHint;
import java.util.Collections;
import java.util.List;
/**
* Sub-class of {@link com.hazelcast.org.apache.calcite.rel.core.Union}
* not targeted at any particular engine or calling convention.
*/
public final class LogicalUnion extends Union {
//~ Constructors -----------------------------------------------------------
/**
* Creates a LogicalUnion.
*
* Use {@link #create} unless you know what you're doing.
*/
public LogicalUnion(RelOptCluster cluster,
RelTraitSet traitSet,
List hints,
List inputs,
boolean all) {
super(cluster, traitSet, hints, inputs, all);
}
/**
* Creates a LogicalUnion.
*
* Use {@link #create} unless you know what you're doing.
*/
public LogicalUnion(RelOptCluster cluster,
RelTraitSet traitSet,
List inputs,
boolean all) {
this(cluster, traitSet, Collections.emptyList(), inputs, all);
}
@Deprecated // to be removed before 2.0
public LogicalUnion(RelOptCluster cluster, List inputs,
boolean all) {
this(cluster, cluster.traitSetOf(Convention.NONE), inputs, all);
}
/**
* Creates a LogicalUnion by parsing serialized output.
*/
public LogicalUnion(RelInput input) {
super(input);
}
/** Creates a LogicalUnion. */
public static LogicalUnion create(List inputs, boolean all) {
final RelOptCluster cluster = inputs.get(0).getCluster();
final RelTraitSet traitSet = cluster.traitSetOf(Convention.NONE);
return new LogicalUnion(cluster, traitSet, inputs, all);
}
//~ Methods ----------------------------------------------------------------
@Override public LogicalUnion copy(
RelTraitSet traitSet, List inputs, boolean all) {
assert traitSet.containsIfApplicable(Convention.NONE);
return new LogicalUnion(getCluster(), traitSet, hints, inputs, all);
}
@Override public RelNode accept(RelShuttle shuttle) {
return shuttle.visit(this);
}
@Override public RelNode withHints(List hintList) {
return new LogicalUnion(getCluster(), traitSet, hintList, inputs, all);
}
}