001// Copyright 2004, 2005 The Apache Software Foundation
002//
003// Licensed under the Apache License, Version 2.0 (the "License");
004// you may not use this file except in compliance with the License.
005// You may obtain a copy of the License at
006//
007//     http://www.apache.org/licenses/LICENSE-2.0
008//
009// Unless required by applicable law or agreed to in writing, software
010// distributed under the License is distributed on an "AS IS" BASIS,
011// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
012// See the License for the specific language governing permissions and
013// limitations under the License.
014
015package org.apache.hivemind.schema.rules;
016
017import org.apache.hivemind.Element;
018import org.apache.hivemind.impl.BaseLocatable;
019import org.apache.hivemind.schema.Rule;
020import org.apache.hivemind.schema.SchemaProcessor;
021
022/**
023 * Base class for implementing {@link org.apache.hivemind.schema.Rule}s.
024 *
025 * @author Howard Lewis Ship
026 */
027public abstract class BaseRule extends BaseLocatable implements Rule
028{
029    /**
030     * Does nothing; subclasses may override.
031     */
032    public void begin(SchemaProcessor processor, Element element)
033    {
034
035    }
036
037    /**
038     * Does nothing; subclasses may override.
039     */
040    public void end(SchemaProcessor processor, Element element)
041    {
042
043    }
044
045}