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.adapter.enumerable;
  
  import org.apache.calcite.plan.Convention;
  import org.apache.calcite.rel.RelNode;
  import org.apache.calcite.rel.convert.ConverterRule;
  import org.apache.calcite.rel.core.Match;
  import org.apache.calcite.rel.logical.LogicalMatch;
  
  /**
   * Rule to convert a {@link LogicalMatch} to an {@link EnumerableMatch}.
   * You may provide a custom config to convert other nodes that extend {@link Match}.
   *
   * @see EnumerableRules#ENUMERABLE_MATCH_RULE
   */
  public class EnumerableMatchRule extends ConverterRule {
    /** Default configuration. */
    public static final Config DEFAULT_CONFIG = Config.INSTANCE
        .withConversion(LogicalMatch.class, Convention.NONE,
            EnumerableConvention.INSTANCE, "EnumerableMatchRule")
        .withRuleFactory(EnumerableMatchRule::new);
  
    /** Creates an EnumerableMatchRule. */
    protected EnumerableMatchRule(Config config) {
      super(config);
    }
  
    @Override public RelNode convert(RelNode rel) {
      final Match match = (Match) rel;
      return EnumerableMatch.create(
          convert(match.getInput(),
              match.getInput().getTraitSet()
                  .replace(EnumerableConvention.INSTANCE)),
          match.getRowType(),
          match.getPattern(), match.isStrictStart(), match.isStrictEnd(),
          match.getPatternDefinitions(), match.getMeasures(), match.getAfter(),
          match.getSubsets(), match.isAllRows(), match.getPartitionKeys(),
          match.getOrderKeys(), match.getInterval());
    }
  }
  