objectcreationfactory.java

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/* $Id: ObjectCreationFactory.java 299475 2004-06-26 17:41:32Z remm $
 *
 * 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.tomcat.util.digester;


import org.xml.sax.Attributes;

/**
 * <p> Interface for use with {@link FactoryCreateRule}.
 * The rule calls {@link #createObject} to create an object
 * to be pushed onto the <code>Digester</code> stack
 * whenever it is matched.</p>
 *
 * <p> {@link AbstractObjectCreationFactory} is an abstract
 * implementation suitable for creating anonymous
 * <code>ObjectCreationFactory</code> implementations.
 */
public interface ObjectCreationFactory {

    /**
     * <p>Factory method called by {@link FactoryCreateRule} to supply an
     * object based on the element's attributes.
     *
     * @param attributes the element's attributes
     *
     * @throws Exception any exception thrown will be propagated upwards
     */
    public Object createObject(Attributes attributes) throws Exception;

    /**
     * <p>Returns the {@link Digester} that was set by the
     * {@link FactoryCreateRule} upon initialization.
     */
    public Digester getDigester();

    /**
     * <p>Set the {@link Digester} to allow the implementation to do logging,
     * classloading based on the digester's classloader, etc.
     *
     * @param digester parent Digester object
     */
    public void setDigester(Digester digester);

}