/* $Id: RuleSetBase.java,v 1.9 2004/05/10 06:30:06 skitching Exp $
 *
 * Copyright 2001-2004 The Apache Software Foundation.
 * 
 * Licensed 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;


/**
 * <p>Convenience base class that implements the {@link RuleSet} interface.
 * Concrete implementations should list all of their actual rule creation
 * logic in the <code>addRuleSet()</code> implementation.</p>
 */

public abstract class RuleSetBase implements RuleSet {


    // ----------------------------------------------------- Instance Variables


    /**
     * The namespace URI that all Rule instances created by this RuleSet
     * will be associated with.
     */
    protected String namespaceURI = null;


    // ------------------------------------------------------------- Properties


    /**
     * Return the namespace URI that will be applied to all Rule instances
     * created from this RuleSet.
     */
    public String getNamespaceURI() {

        return (this.namespaceURI);

    }


    // --------------------------------------------------------- Public Methods


    /**
     * Add the set of Rule instances defined in this RuleSet to the
     * specified <code>Digester</code> instance, associating them with
     * our namespace URI (if any).  This method should only be called
     * by a Digester instance.
     *
     * @param digester Digester instance to which the new Rule instances
     *  should be added.
     */
    public abstract void addRuleInstances(Digester digester);


}