/*
* 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.synapse.commons.evaluators;
/**
* This encapsulates a boolean expression. This acts as not boolean operator.
* It executes the boolean expression inside and return the NOT of this expression.</p>
*
* <pre>
* <not>
* one evaluator
* </not>
* </pre>
*/
public class NotEvaluator implements Evaluator {
private Evaluator evaluator;
public boolean evaluate(EvaluatorContext context) throws EvaluatorException {
return !evaluator.evaluate(context);
}
public String getName() {
return EvaluatorConstants.NOT;
}
public void setEvaluator(Evaluator evaluator) {
this.evaluator = evaluator;
}
public Evaluator getEvaluator() {
return evaluator;
}
}