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