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.carbondata.core.scan.expression;
  
  public abstract class BinaryExpression extends Expression {
  
    private static final long serialVersionUID = 1L;
    protected Expression left;
    protected Expression right;
  
    public BinaryExpression(Expression left, Expression right) {
      this.left = left;
      this.right = right;
      children.add(left);
      children.add(right);
    }
  
    public Expression getLeft() {
      return left;
    }
  
    public Expression getRight() {
      return right;
    }
  
    @Override
    public void findAndSetChild(Expression oldExpr, Expression newExpr) {
      for (int i = 0; i < children.size(); i++) {
        if (oldExpr.equals(children.get(i))) {
          if (this.left.equals(children.get(i))) {
            this.left = newExpr;
          } else if (this.right.equals(children.get(i))) {
            this.right = newExpr;
          }
          children.remove(i);
          children.add(newExpr);
        }
      }
    }
  }
  