| /** |
| * 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.tajo.algebra; |
| |
| import com.google.common.base.Objects; |
| import com.google.gson.annotations.Expose; |
| import com.google.gson.annotations.SerializedName; |
| |
| public class BinaryOperator extends Expr { |
| @Expose @SerializedName("LeftExpr") |
| protected Expr left; |
| @Expose @SerializedName("RightExpr") |
| protected Expr right; |
| |
| BinaryOperator(OpType opType) { |
| super(opType); |
| } |
| |
| public BinaryOperator(OpType type, Expr left, Expr right) { |
| super(type); |
| this.left = left; |
| this.right = right; |
| } |
| |
| public <T extends Expr> T getLeft() { |
| return (T) this.left; |
| } |
| |
| public void setLeft(Expr left) { |
| this.left = left; |
| } |
| |
| public <T extends Expr> T getRight() { |
| return (T) this.right; |
| } |
| |
| public void setRight(Expr right) { |
| this.right = right; |
| } |
| |
| public int hashCode() { |
| return Objects.hashCode(opType, left, right); |
| } |
| |
| @Override |
| boolean equalsTo(Expr expr) { |
| // Operator type is compared at Expr.equals(Object). So, we don't need to compare it here. |
| return true; |
| } |
| |
| public String toString() { |
| return left.toString() + " " + opType.toString() + " " + right.toString(); |
| } |
| |
| @Override |
| public Object clone() throws CloneNotSupportedException { |
| BinaryOperator binaryOperator = (BinaryOperator) super.clone(); |
| binaryOperator.left = (Expr) left.clone(); |
| binaryOperator.right = (Expr) right.clone(); |
| return binaryOperator; |
| } |
| } |