/*
* 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.tomcat.util.digester;
import java.util.List;
/**
* Public interface defining a collection of Rule instances ( and corresponding
* matching patterns ) plus an implementation of a matching policy that selects
* the rules that match a particular pattern of nested elements discovered
* during parsing .
*/
public interface Rules {
// ------------------------------------------------------------- Properties
/**
* @ return the Digester instance with which this Rules instance is
* associated .
*/
Digester getDigester();
/**
* Set the Digester instance with which this Rules instance is associated .
*
* @ param digester The newly associated Digester instance
*/
void setDigester(Digester digester);
// --------------------------------------------------------- Public Methods
/**
* Register a new Rule instance matching the specified pattern .
*
* @ param pattern Nesting pattern to be matched for this Rule
* @ param rule Rule instance to be registered
*/
void add(String pattern, Rule rule);
/**
* Clear all existing Rule instance registrations .
*/
void clear();
/**
* Return a List of all registered Rule instances that match the specified
* nesting pattern , or a zero - length List if there are no matches . If more
* than one Rule instance matches , they < strong > must < / strong > be returned
* in the order originally registered through the < code > add ( ) < / code >
* method .
*
* @ param namespaceURI Namespace URI for which to select matching rules ,
* or < code > null < / code > to match regardless of namespace URI
* @ param pattern Nesting pattern to be matched
* @ return a rules list
*/
List<Rule> match(String namespaceURI, String pattern);
/**
* Return a List of all registered Rule instances , or a zero - length List
* if there are no registered Rule instances . If more than one Rule
* instance has been registered , they < strong > must < / strong > be returned
* in the order originally registered through the < code > add ( ) < / code >
* method .
* @ return a rules list
*/
List<Rule> rules();
}
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