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     * Builder chained when invoking
026     * {@link LinkedRuleBuilder#addRuleCreatedBy(org.apache.commons.digester3.binder.RuleProvider)}.
027     *
028     * @param <R> The rule type will be returned by this builder
029     * @since 3.0
030     */
031    public final class ByRuleProviderBuilder<R extends Rule>
032        extends AbstractBackToLinkedRuleBuilder<R>
033    {
034    
035        private final RuleProvider<R> provider;
036    
037        ByRuleProviderBuilder( String keyPattern, String namespaceURI, RulesBinder mainBinder,
038                               LinkedRuleBuilder mainBuilder, RuleProvider<R> provider )
039        {
040            super( keyPattern, namespaceURI, mainBinder, mainBuilder );
041            this.provider = provider;
042        }
043    
044        /**
045         * {@inheritDoc}
046         */
047        @Override
048        protected R createRule()
049        {
050            return provider.get();
051        }
052    
053    }