RETESinkNode.java

/*
 * 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.jena.reasoner.rulesys.impl;

/**
 * Interface for all inner nodes in the RETE network. Tokens are 
 * represented by binding environments. This representation only works
 * if we don't overlap the networks for different rules.
 */
public interface RETESinkNode extends RETENode {

    /** 
     * Propagate a token to this node.
     * @param env a set of variable bindings for the rule being processed. 
     * @param isAdd distinguishes between add and remove operations.
     */
    public void fire(BindingVector env, boolean isAdd);
    
}