net.sf.ehcache.search.expression.Not Maven / Gradle / Ivy

/**
 *  Copyright Terracotta, Inc.
 *
 *  Licensed 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 net.sf.ehcache.search.expression;

import java.util.Map;

import net.sf.ehcache.Element;
import net.sf.ehcache.search.attribute.AttributeExtractor;

/**
 * A search criteria composed of the logical "not" (ie. negation) of another criteria
 *
 * @author teck
 */
public class Not extends BaseCriteria {

    private final Criteria c;

    /**
     * Construct a "not" criteria of the given criteria
     *
     * @param c the criteria to "not"
     */
    public Not(Criteria c) {
        this.c = c;
    }

    /**
     * @return criteria
     */
    public Criteria getCriteria() {
        return c;
    }

    /**
     * {@inheritDoc}
     */
    public boolean execute(Element e, Map attributeExtractors) {
        return !c.execute(e, attributeExtractors);
    }

}