Operator.java

/**
 * Copyright 2010 JBoss 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 org.drools.runtime.rule;

/**
 * An interface for Operator definitions.
 * 
 * @author etirelli
 */
public interface Operator {

    /**
     * Returns the String representation for this operator
     * 
     * @return
     */
    public String getOperatorString();

    /**
     * Returns true if this operator instance is negated.
     * 
     * @return
     */
    public boolean isNegated();

}