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.RelOptCluster;
  import org.apache.calcite.plan.RelTraitSet;
  import org.apache.calcite.rel.RelNode;
  import org.apache.calcite.rel.core.CorrelationId;
  import org.apache.calcite.rel.core.JoinRelType;
  import org.apache.calcite.rex.RexNode;
  import org.apache.calcite.util.ImmutableIntList;
  
  import java.util.Set;
  
  /**
   * Base class for any join whose condition is based on column equality.
   *
   * @deprecated Use
   * {@link org.apache.calcite.rel.core.EquiJoin EquiJoin in 'core' package}
   */
  @Deprecated // to be removed before 2.0
  public abstract class EquiJoin extends org.apache.calcite.rel.core.EquiJoin {
    protected EquiJoin(RelOptCluster cluster, RelTraitSet traits, RelNode left,
        RelNode right, RexNode condition, ImmutableIntList leftKeys,
        ImmutableIntList rightKeys, JoinRelType joinType,
        Set<String> variablesStopped) {
      super(cluster, traits, left, right, condition, leftKeys, rightKeys,
          CorrelationId.setOf(variablesStopped), joinType);
    }
  }
  