content: /*
   * 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 org.apache.calcite.rel.rules;
  
  import org.apache.calcite.plan.RelOptRuleCall;
  import org.apache.calcite.plan.RelRule;
  import org.apache.calcite.rel.RelNode;
  import org.apache.calcite.rel.logical.LogicalMatch;
  
  import org.immutables.value.Value;
  
  /**
   * Planner rule that converts a
   * {@link LogicalMatch} to the result
   * of calling {@link LogicalMatch#copy}.
   *
   * @see CoreRules#MATCH
   */
  @Value.Enclosing
  public class MatchRule extends RelRule<MatchRule.Config>
      implements TransformationRule {
  
    /** Creates a MatchRule. */
    protected MatchRule(Config config) {
      super(config);
    }
  
    //~ Methods ----------------------------------------------------------------
  
    @Override 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);
    }
  
    /** Rule configuration. */
    @Value.Immutable
    public interface Config extends RelRule.Config {
      Config DEFAULT = ImmutableMatchRule.Config.of()
          .withOperandSupplier(b -> b.operand(LogicalMatch.class).anyInputs());
  
      @Override default MatchRule toRule() {
        return new MatchRule(this);
      }
    }
  }
  