com.hazelcast.org.apache.calcite.rel.mutable.MutableJoin 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.core.CorrelationId;
import com.hazelcast.org.apache.calcite.rel.core.JoinRelType;
import com.hazelcast.org.apache.calcite.rel.type.RelDataType;
import com.hazelcast.org.apache.calcite.rex.RexNode;
import com.hazelcast.org.checkerframework.checker.nullness.qual.Nullable;
import java.util.Objects;
import java.util.Set;
/** Mutable equivalent of {@link com.hazelcast.org.apache.calcite.rel.core.Join}. */
public class MutableJoin extends MutableBiRel {
public final RexNode condition;
public final Set variablesSet;
public final JoinRelType joinType;
private MutableJoin(
RelDataType rowType,
MutableRel left,
MutableRel right,
RexNode condition,
JoinRelType joinType,
Set variablesSet) {
super(MutableRelType.JOIN, left.cluster, rowType, left, right);
this.condition = condition;
this.variablesSet = variablesSet;
this.joinType = joinType;
}
/**
* Creates a MutableJoin.
*
* @param rowType Row type
* @param left Left input relational expression
* @param right Right input relational expression
* @param condition Join condition
* @param joinType Join type
* @param variablesStopped Set of variables that are set by the LHS and
* used by the RHS and are not available to
* nodes above this join in the tree
*/
public static MutableJoin of(RelDataType rowType, MutableRel left,
MutableRel right, RexNode condition, JoinRelType joinType,
Set variablesStopped) {
return new MutableJoin(rowType, left, right, condition, joinType,
variablesStopped);
}
@Override public boolean equals(@Nullable Object obj) {
return obj == this
|| obj instanceof MutableJoin
&& joinType == ((MutableJoin) obj).joinType
&& condition.equals(((MutableJoin) obj).condition)
&& Objects.equals(variablesSet,
((MutableJoin) obj).variablesSet)
&& left.equals(((MutableJoin) obj).left)
&& right.equals(((MutableJoin) obj).right);
}
@Override public int hashCode() {
return Objects.hash(left, right, condition, joinType, variablesSet);
}
@Override public StringBuilder digest(StringBuilder buf) {
return buf.append("Join(joinType: ").append(joinType)
.append(", condition: ").append(condition)
.append(")");
}
@Override public MutableRel clone() {
return MutableJoin.of(rowType, left.clone(),
right.clone(), condition, joinType, variablesSet);
}
}
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