com.hazelcast.sql.impl.calcite.opt.physical.MapScanPhysicalRel Maven / Gradle / Ivy

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/*
 * Copyright (c) 2008-2020, Hazelcast, Inc. All Rights Reserved.
 *
 * Licensed 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.com.hazelcast.sql.impl.calcite.opt.physical;

import com.hazelcast.com.hazelcast.sql.impl.calcite.opt.physical.visitor.PhysicalRelVisitor;
import com.hazelcast.org.apache.calcite.plan.RelOptCluster;
import com.hazelcast.org.apache.calcite.plan.RelOptTable;
import com.hazelcast.org.apache.calcite.plan.RelTraitSet;
import com.hazelcast.org.apache.calcite.rel.RelNode;

import java.util.List;

/**
 * Physical scan over partitioned map.
 * 
 * Traits:
 * 

 *     Collation: empty, as map is not sorted
 *     Distribution: PARTITIONED or REPLICATED depending on the map type
 * 
 */
public class MapScanPhysicalRel extends AbstractMapScanPhysicalRel {
    public MapScanPhysicalRel(
        RelOptCluster cluster,
        RelTraitSet traitSet,
        RelOptTable table
    ) {
        super(cluster, traitSet, table);
    }

    @Override
    public final RelNode copy(RelTraitSet traitSet, List inputs) {
        return new MapScanPhysicalRel(getCluster(), traitSet, getTable());
    }

    @Override
    public void visit(PhysicalRelVisitor visitor) {
        visitor.onMapScan(this);
    }
}