001    package org.apache.commons.digester3.binder;
002    
003    /*
004     * Licensed to the Apache Software Foundation (ASF) under one
005     * or more contributor license agreements.  See the NOTICE file
006     * distributed with this work for additional information
007     * regarding copyright ownership.  The ASF licenses this file
008     * to you under the Apache License, Version 2.0 (the
009     * "License"); you may not use this file except in compliance
010     * with the License.  You may obtain a copy of the License at
011     *
012     *   http://www.apache.org/licenses/LICENSE-2.0
013     *
014     * Unless required by applicable law or agreed to in writing,
015     * software distributed under the License is distributed on an
016     * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
017     * KIND, either express or implied.  See the License for the
018     * specific language governing permissions and limitations
019     * under the License.
020     */
021    
022    import org.apache.commons.digester3.Rule;
023    
024    /**
025     * An object capable of providing instances of {@link Rule}.
026     *
027     * @param <R> The Rule type created by the provider.
028     * @since 3.0
029     */
030    public interface RuleProvider<R extends Rule>
031    {
032    
033        /**
034         * Provides an instance of {@link Rule}. Must never return null.
035         *
036         * @return an instance of {@link Rule}.
037         */
038        R get();
039    
040    }