org.apache.inlong.sort.filesystem.shaded.com.amazonaws.jmespath.Comparator Maven / Gradle / Ivy
/*
* Copyright 2010-2022 Amazon.com, Inc. or its affiliates. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License").
* You may not use this file except in compliance with the License.
* A copy of the License is located at
*
* http://aws.amazon.com/apache2.0
*
* or in the "license" file accompanying this file. This file 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 com.amazonaws.jmespath;
import com.fasterxml.jackson.databind.JsonNode;
/**
* Parent class for different types of comparison operators.
*/
public abstract class Comparator implements JmesPathExpression {
/**
* Represents the left expression
*/
protected final JmesPathExpression lhsExpr;
/**
* Represents the right expression
*/
protected final JmesPathExpression rhsExpr;
/**
* Constructs a new Comparator with the given lhs amd rhs
* expressions.
*
* @param lhsExpr Left expression
* @param rhsExpr Right expression
*/
public Comparator(JmesPathExpression lhsExpr, JmesPathExpression rhsExpr) {
this.lhsExpr = lhsExpr;
this.rhsExpr = rhsExpr;
}
public JmesPathExpression getLhsExpr() {
return lhsExpr;
}
public JmesPathExpression getRhsExpr() {
return rhsExpr;
}
/**
* Abstract method definition that is overriden by subclasses
* to compare the lhs and rhs expressions depending on the
* particular type of comparator
*
* @param lhs Lhs expression
* @param rhs Rhs expression
* @return True if the comparison is evaluated to true;
* False otherwise
*/
public abstract boolean matches(JsonNode lhs, JsonNode rhs);
}