org.apache.hudi.expression.BinaryExpression Maven / Gradle / Ivy
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* 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.hudi.expression;
import java.util.Arrays;
import java.util.List;
/**
* The expression that accept two child expressions.
*/
public abstract class BinaryExpression implements Expression {
private final Operator operator;
private final Expression left;
private final Expression right;
BinaryExpression(Expression left, Operator operator, Expression right) {
this.left = left;
this.operator = operator;
this.right = right;
}
public Operator getOperator() {
return operator;
}
public Expression getLeft() {
return left;
}
public Expression getRight() {
return right;
}
@Override
public List getChildren() {
return Arrays.asList(left, right);
}
@Override
public String toString() {
return left.toString() + " " + operator.symbol + " " + right.toString();
}
}