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/*
* 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.util.ImmutableBitSet;
import java.util.Objects;
/** Mutable equivalent of {@link com.hazelcast.org.apache.calcite.rel.core.Correlate}. */
public class MutableCorrelate extends MutableBiRel {
public final CorrelationId correlationId;
public final ImmutableBitSet requiredColumns;
public final JoinRelType joinType;
private MutableCorrelate(
RelDataType rowType,
MutableRel left,
MutableRel right,
CorrelationId correlationId,
ImmutableBitSet requiredColumns,
JoinRelType joinType) {
super(MutableRelType.CORRELATE, left.cluster, rowType, left, right);
this.correlationId = correlationId;
this.requiredColumns = requiredColumns;
this.joinType = joinType;
}
/**
* Creates a MutableCorrelate.
*
* @param rowType Row type
* @param left Left input relational expression
* @param right Right input relational expression
* @param correlationId Variable name for the row of left input
* @param requiredColumns Required columns
* @param joinType Join type
*/
public static MutableCorrelate of(RelDataType rowType, MutableRel left,
MutableRel right, CorrelationId correlationId,
ImmutableBitSet requiredColumns, JoinRelType joinType) {
return new MutableCorrelate(rowType, left, right, correlationId,
requiredColumns, joinType);
}
@Override public boolean equals(Object obj) {
return obj == this
|| obj instanceof MutableCorrelate
&& correlationId.equals(
((MutableCorrelate) obj).correlationId)
&& requiredColumns.equals(
((MutableCorrelate) obj).requiredColumns)
&& joinType == ((MutableCorrelate) obj).joinType
&& left.equals(((MutableCorrelate) obj).left)
&& right.equals(((MutableCorrelate) obj).right);
}
@Override public int hashCode() {
return Objects.hash(left, right, correlationId, requiredColumns, joinType);
}
@Override public StringBuilder digest(StringBuilder buf) {
return buf.append("Correlate(correlationId: ").append(correlationId)
.append(", requiredColumns: ").append(requiredColumns)
.append(", joinType: ").append(joinType)
.append(")");
}
@Override public MutableRel clone() {
return MutableCorrelate.of(rowType, left.clone(),
right.clone(), correlationId, requiredColumns, joinType);
}
}