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.asterix.lang.sqlpp.clause;
  
  import java.util.Objects;
  
  import org.apache.asterix.lang.common.base.AbstractClause;
  import org.apache.asterix.lang.common.base.Expression;
  import org.apache.asterix.lang.common.expression.VariableExpr;
  
  public abstract class AbstractBinaryCorrelateClause extends AbstractClause {
  
      private Expression rightExpr;
      private VariableExpr rightVar;
      private VariableExpr rightPosVar;
  
      public AbstractBinaryCorrelateClause(Expression rightExpr, VariableExpr rightVar, VariableExpr rightPosVar) {
          this.rightExpr = rightExpr;
          this.rightVar = rightVar;
          this.rightPosVar = rightPosVar;
      }
  
      public Expression getRightExpression() {
          return rightExpr;
      }
  
      public void setRightExpression(Expression rightExpr) {
          this.rightExpr = rightExpr;
      }
  
      public VariableExpr getRightVariable() {
          return rightVar;
      }
  
      public VariableExpr getPositionalVariable() {
          return rightPosVar;
      }
  
      public boolean hasPositionalVariable() {
          return rightPosVar != null;
      }
  
      @Override
      public int hashCode() {
          return Objects.hash(rightExpr, rightPosVar, rightVar);
      }
  
      @Override
      public boolean equals(Object object) {
          if (this == object) {
              return true;
          }
          if (!(object instanceof AbstractBinaryCorrelateClause)) {
              return false;
          }
          AbstractBinaryCorrelateClause target = (AbstractBinaryCorrelateClause) object;
          return Objects.equals(rightExpr, target.rightExpr) && Objects.equals(rightPosVar, target.rightPosVar)
                  && Objects.equals(rightVar, target.rightVar);
      }
  
  }
  