com.hazelcast.org.apache.calcite.rel.rules.MatchRule 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.rules;
import com.hazelcast.org.apache.calcite.plan.RelOptRule;
import com.hazelcast.org.apache.calcite.plan.RelOptRuleCall;
import com.hazelcast.org.apache.calcite.rel.RelNode;
import com.hazelcast.org.apache.calcite.rel.logical.LogicalMatch;
/**
* Planner rule that converts a
* {@link LogicalMatch} to the result
* of calling {@link LogicalMatch#copy}.
*/
public class MatchRule extends RelOptRule implements TransformationRule {
//~ Static fields/initializers ---------------------------------------------
public static final MatchRule INSTANCE = new MatchRule();
//~ Constructors -----------------------------------------------------------
private MatchRule() {
super(operand(LogicalMatch.class, any()));
}
//~ Methods ----------------------------------------------------------------
public void onMatch(RelOptRuleCall call) {
final LogicalMatch oldRel = call.rel(0);
final RelNode match = LogicalMatch.create(oldRel.getCluster(),
oldRel.getTraitSet(), oldRel.getInput(), oldRel.getRowType(),
oldRel.getPattern(), oldRel.isStrictStart(), oldRel.isStrictEnd(),
oldRel.getPatternDefinitions(), oldRel.getMeasures(),
oldRel.getAfter(), oldRel.getSubsets(), oldRel.isAllRows(),
oldRel.getPartitionKeys(), oldRel.getOrderKeys(),
oldRel.getInterval());
call.transformTo(match);
}
}
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