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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 org.apache.drill.exec.physical.base;
import org.apache.drill.shaded.guava.com.google.common.collect.Iterators;
import org.apache.calcite.rel.core.JoinRelType;
import org.apache.drill.common.expression.LogicalExpression;
import org.apache.drill.common.logical.data.JoinCondition;
import java.util.Iterator;
import java.util.List;
public abstract class AbstractJoinPop extends AbstractBase {
protected final PhysicalOperator left;
protected final PhysicalOperator right;
protected final JoinRelType joinType;
protected final boolean semiJoin;
protected final LogicalExpression condition;
protected final List<JoinCondition> conditions;
public AbstractJoinPop(PhysicalOperator leftOp, PhysicalOperator rightOp,
JoinRelType joinType, boolean semiJoin, LogicalExpression joinCondition,
List<JoinCondition> joinConditions) {
left = leftOp;
right = rightOp;
this.joinType = joinType;
this.semiJoin = semiJoin;
condition = joinCondition;
conditions = joinConditions;
}
@Override
public <T, X, E extends Throwable> T accept(PhysicalVisitor<T, X, E> physicalVisitor, X value) throws E {
return physicalVisitor.visitOp(this, value);
}
@Override
public Iterator<PhysicalOperator> iterator() {
return Iterators.forArray(left, right);
}
public PhysicalOperator getLeft() {
return left;
}
public PhysicalOperator getRight() {
return right;
}
public JoinRelType getJoinType() {
return joinType;
}
public boolean isSemiJoin() { return semiJoin; }
public LogicalExpression getCondition() { return condition; }
public List<JoinCondition> getConditions() {
return conditions;
}
}
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