ClauseEntry.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
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 */

package org.apache.jena.reasoner.rulesys;

/**
 *  Common interface for all objects that can go into rules.
 * Strictly these should probably be called terms rather than clause entries.
 */
public interface ClauseEntry {
    
    /**
     * Compare clause entries, taking into account variable indices.
     * The equality function ignores differences between variables.
     */
    public boolean sameAs(Object o);

}