com.hazelcast.jet.sql.impl.opt.physical.DropLateItemsPhysicalRule Maven / Gradle / Ivy

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SQL Parser and Optimizer

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/*
 * Copyright 2021 Hazelcast Inc.
 *
 * Licensed under the Hazelcast Community License (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://hazelcast.com/hazelcast-community-license
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.hazelcast.jet.sql.impl.opt.physical;

import com.hazelcast.jet.sql.impl.opt.OptUtils;
import com.hazelcast.jet.sql.impl.opt.logical.DropLateItemsLogicalRel;
import com.hazelcast.org.apache.calcite.plan.RelOptRule;
import com.hazelcast.org.apache.calcite.rel.RelNode;
import com.hazelcast.org.apache.calcite.rel.convert.ConverterRule;

import javax.annotation.Nonnull;

import static com.hazelcast.jet.sql.impl.opt.Conventions.LOGICAL;
import static com.hazelcast.jet.sql.impl.opt.Conventions.PHYSICAL;

public final class DropLateItemsPhysicalRule extends ConverterRule {

    static final RelOptRule INSTANCE = new DropLateItemsPhysicalRule();

    private DropLateItemsPhysicalRule() {
        super(
                DropLateItemsLogicalRel.class, LOGICAL, PHYSICAL,
                DropLateItemsPhysicalRule.class.getSimpleName()
        );
    }

    @Nonnull
    @Override
    public RelNode convert(RelNode rel) {
        DropLateItemsLogicalRel logicalRel = (DropLateItemsLogicalRel) rel;
        return new DropLateItemsPhysicalRel(
                rel.getCluster(),
                OptUtils.toPhysicalConvention(logicalRel.getTraitSet()),
                OptUtils.toPhysicalInput(logicalRel.getInput()),
                logicalRel.wmField()
        );
    }
}