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/* $Id: InitializableRule.java 471661 2006-11-06 08:09:25Z skitching $
 *
 * 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.commons.digester.plugins;

/**
 * Defines an interface that a Rule class can implement if it wishes to get an
 * initialisation callback after the rule has been added to the set of Rules
 * within a PluginRules instance.
 *
 * @since 1.6
 */

public interface InitializableRule {

    /**
     * Called after this Rule object has been added to the list of all Rules.
     * Note that if a single InitializableRule instance is associated with
     * more than one pattern, then this method will be called more than once.
     * 
     * @param pattern is the digester match pattern that will trigger this
     *        rule.
     * @exception
     *  PluginConfigurationException is thrown if the InitializableRule 
     *  determines that it cannot correctly initialise itself for any reason.
     */
    public void postRegisterInit(String pattern)
                                 throws PluginConfigurationException;
}