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. 014 015 package org.apache.tapestry.valid; 016 017 import java.io.Serializable; 018 019 import org.apache.hivemind.util.Defense; 020 import org.apache.tapestry.IRender; 021 import org.apache.tapestry.form.IFormComponent; 022 023 /** 024 * Default implementation of {@link IFieldTracking}. 025 * 026 * @author Howard Lewis Ship 027 * @since 1.0.8 028 */ 029 030 public class FieldTracking implements IFieldTracking, Serializable 031 { 032 033 private static final long serialVersionUID = -5397563163968532716L; 034 035 private transient IFormComponent _component; 036 037 private String _input; 038 039 private IRender _renderer; 040 041 private String _fieldName; 042 043 private ValidationConstraint _constraint; 044 045 /** 046 * Constructor used for unassociated errors; errors that are not about any 047 * particular field within the form. 048 */ 049 050 FieldTracking() 051 { 052 } 053 054 /** 055 * Standard constructor for a field (with the given name), rendered by the 056 * specified component. 057 */ 058 059 FieldTracking(String fieldName, IFormComponent component) 060 { 061 Defense.notNull(fieldName, "fieldName"); 062 Defense.notNull(component, "component"); 063 064 _fieldName = fieldName; 065 _component = component; 066 } 067 068 public IFormComponent getComponent() 069 { 070 return _component; 071 } 072 073 public IRender getErrorRenderer() 074 { 075 return _renderer; 076 } 077 078 public void setErrorRenderer(IRender value) 079 { 080 _renderer = value; 081 } 082 083 public String getInput() 084 { 085 return _input; 086 } 087 088 public void setInput(String value) 089 { 090 _input = value; 091 } 092 093 public String getFieldName() 094 { 095 return _fieldName; 096 } 097 098 public ValidationConstraint getConstraint() 099 { 100 return _constraint; 101 } 102 103 public void setConstraint(ValidationConstraint constraint) 104 { 105 _constraint = constraint; 106 } 107 108 /** @since 3.0 * */ 109 110 public boolean isInError() 111 { 112 return _renderer != null; 113 } 114 115 }