001 /* 002 * Copyright 1999-2001,2004 The Apache Software Foundation. 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * http://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 */ 016 017 018 package org.apache.commons.workflow.io; 019 020 021 import org.apache.commons.digester.Digester; 022 import org.apache.commons.workflow.base.BaseRuleSet; 023 024 025 /** 026 * <p><strong>RuleSet</strong> for the Step definitions supported by the 027 * <em>io</em> library. This library is normally associated with the 028 * following namespace URI:</p> 029 * <pre> 030 * http://commons.apache.org/workflow/io 031 * </pre> 032 * 033 * @author Craig R. McClanahan 034 * @version $Revision: 561366 $ $Date: 2007-07-31 16:58:29 +0100 (Tue, 31 Jul 2007) $ 035 */ 036 037 public class IoRuleSet extends BaseRuleSet { 038 039 040 // ------------------------------------------------------------ Constructor 041 042 043 /** 044 * Construct a default instance of the <code>RuleSet</code>. 045 */ 046 public IoRuleSet() { 047 048 super(); 049 setNamespaceURI("http://commons.apache.org/workflow/io"); 050 051 } 052 053 054 // --------------------------------------------------------- Public Methods 055 056 057 /** 058 * <p>Add the set of Rule instances defined in this RuleSet to the 059 * specified <code>Digester</code> instance, associating them with 060 * our namespace URI (if any). This method should only be called 061 * by a Digester instance.</p> 062 * 063 * @param digester Digester instance to which the new Rule instances 064 * should be added. 065 */ 066 public void addRuleInstances(Digester digester) { 067 068 // Add rules for each Step defined in this package 069 addStandardStep(digester, "display", 070 "org.apache.commons.workflow.io.DisplayStep"); 071 addStandardStep(digester, "get", 072 "org.apache.commons.workflow.io.GetStep"); 073 addStandardStep(digester, "peek", 074 "org.apache.commons.workflow.io.PeekStep"); 075 addStandardStep(digester, "read", 076 "org.apache.commons.workflow.io.ReadStep"); 077 addStandardStep(digester, "write", 078 "org.apache.commons.workflow.io.WriteStep"); 079 080 // Add rules for all variations on descriptors being matched 081 addStandardDescriptor(digester, "descriptor"); // Standard version 082 083 } 084 085 086 }