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}