com.hazelcast.sql.impl.calcite.opt.logical.LogicalRules Maven / Gradle / Ivy

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/*
 * Copyright (c) 2008-2021, Hazelcast, Inc. All Rights Reserved.
 *
 * Licensed 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.sql.impl.calcite.opt.logical;

import com.hazelcast.org.apache.calcite.rel.rules.FilterMergeRule;
import com.hazelcast.org.apache.calcite.rel.rules.FilterProjectTransposeRule;
import com.hazelcast.org.apache.calcite.rel.rules.ProjectFilterTransposeRule;
import com.hazelcast.org.apache.calcite.rel.rules.ProjectJoinTransposeRule;
import com.hazelcast.org.apache.calcite.rel.rules.ProjectMergeRule;
import com.hazelcast.org.apache.calcite.rel.rules.ProjectRemoveRule;
import com.hazelcast.org.apache.calcite.rel.rules.PruneEmptyRules;
import com.hazelcast.org.apache.calcite.tools.RuleSet;
import com.hazelcast.org.apache.calcite.tools.RuleSets;

/**
 * Logical optimization rules.
 */
public final class LogicalRules {
    private LogicalRules() {
        // No-op.
    }

    public static RuleSet getRuleSet() {
        return RuleSets.ofList(
            // Filter rules.
            FilterMergeRule.INSTANCE,
            FilterProjectTransposeRule.INSTANCE,
            FilterIntoScanLogicalRule.INSTANCE,

            // Project rules.
            ProjectMergeRule.INSTANCE,
            ProjectRemoveRule.INSTANCE,
            ProjectFilterTransposeRule.INSTANCE,
            ProjectJoinTransposeRule.INSTANCE,
            ProjectIntoScanLogicalRule.INSTANCE,

            // Values rules
            PruneEmptyRules.PROJECT_INSTANCE,
            PruneEmptyRules.FILTER_INSTANCE,

            // Converter rules
            MapScanLogicalRule.INSTANCE,
            FilterLogicalRule.INSTANCE,
            ProjectLogicalRule.INSTANCE,
            ValuesLogicalRule.INSTANCE,

            SortLogicalRule.INSTANCE
        );
    }
}