/*
* 2012-3 Red Hat Inc. and/or its affiliates and other contributors.
*
* 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.overlord.rtgov.ep;
import com.fasterxml.jackson.annotation.JsonTypeInfo;
/**
* This class represents the predicate applied to an
* event being processed.
*
*/
@JsonTypeInfo(use=JsonTypeInfo.Id.CLASS, include=JsonTypeInfo.As.PROPERTY, property="@class")
public abstract class Predicate {
/**
* This method initializes the predicate.
*
* @throws Exception Failed to initialize the predicate
*/
public void init() throws Exception {
}
/**
* This method evaluates the predicate against the supplied
* event to determine if it should be processed.
*
* @param event The event
* @return Whether the event should be processed
*/
public abstract boolean evaluate(Object event);
}