com.hazelcast.org.apache.calcite.adapter.enumerable.EnumerableIntersectRule 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 com.hazelcast.com.liance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.com.hazelcast.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.adapter.enumerable;
import com.hazelcast.org.apache.calcite.plan.Convention;
import com.hazelcast.org.apache.calcite.plan.RelTraitSet;
import com.hazelcast.org.apache.calcite.rel.RelNode;
import com.hazelcast.org.apache.calcite.rel.convert.ConverterRule;
import com.hazelcast.org.apache.calcite.rel.logical.LogicalIntersect;
/**
* Rule to convert a
* {@link com.hazelcast.org.apache.calcite.rel.logical.LogicalIntersect} to an
* {@link EnumerableIntersect}.
*/
class EnumerableIntersectRule extends ConverterRule {
EnumerableIntersectRule() {
super(LogicalIntersect.class, Convention.NONE,
EnumerableConvention.INSTANCE, "EnumerableIntersectRule");
}
public RelNode convert(RelNode rel) {
final LogicalIntersect intersect = (LogicalIntersect) rel;
final EnumerableConvention out = EnumerableConvention.INSTANCE;
final RelTraitSet traitSet = intersect.getTraitSet().replace(out);
return new EnumerableIntersect(rel.getCluster(), traitSet,
convertList(intersect.getInputs(), out), intersect.all);
}
}