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Java > Open Source Codes > org > objectstyle > cayenne > swing > BindingFactory


1 /* ====================================================================
2  *
3  * The ObjectStyle Group Software License, version 1.1
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6  * Copyright (c) 2002-2005, Andrei (Andrus) Adamchik and individual authors
7  * of the software. All rights reserved.
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56 package org.objectstyle.cayenne.swing;
57
58 import javax.swing.AbstractButton JavaDoc;
59 import javax.swing.JComboBox JavaDoc;
60 import javax.swing.JTable JavaDoc;
61 import javax.swing.JTextArea JavaDoc;
62 import javax.swing.JTextField JavaDoc;
63
64 /**
65  * A factory for a number of common bindings.
66  *
67  * @author Andrei Adamchik
68  */
69 public class BindingFactory {
70
71     protected boolean usingNullForEmptyStrings;
72     protected boolean checkingForValueChange;
73
74     public BindingFactory() {
75         // init defaults...
76 usingNullForEmptyStrings = true;
77         checkingForValueChange = true;
78     }
79
80     public ObjectBinding bindToTable(
81             JTable JavaDoc table,
82             String JavaDoc listBinding,
83             String JavaDoc[] headers,
84             BindingExpression[] columns,
85             Class JavaDoc[] columnClass,
86             boolean[] editableState) {
87
88         TableBinding binding = new TableBinding(
89                 table,
90                 listBinding,
91                 headers,
92                 columns,
93                 columnClass,
94                 editableState);
95         return prepareBinding(binding);
96     }
97
98     public ObjectBinding bindToProperty(
99             BoundComponent component,
100             String JavaDoc property,
101             String JavaDoc boundProperty) {
102         PropertyBinding binding = new PropertyBinding(component, property, boundProperty);
103         return prepareBinding(binding);
104     }
105
106     /**
107      * Binds to AbstractButton item state change events. Most common AbstractButton
108      * subclasses are JButton, JCheckBox, JRadioButton.
109      */
110     public ObjectBinding bindToStateChange(AbstractButton JavaDoc button, String JavaDoc property) {
111         ItemEventBinding binding = new ItemEventBinding(button, property);
112         return prepareBinding(binding);
113     }
114
115     /**
116      * Binds to AbstractButton action events. Most common AbstractButton subclasses are
117      * JButton, JCheckBox, JRadioButton.
118      */
119     public ObjectBinding bindToAction(AbstractButton JavaDoc button, String JavaDoc action) {
120         ActionBinding binding = new ActionBinding(button, action);
121         return prepareBinding(binding);
122     }
123
124     public ObjectBinding bindToComboSelection(
125             JComboBox JavaDoc component,
126             String JavaDoc property,
127             String JavaDoc noSelectionValue) {
128         ComboSelectionBinding binding = new ComboSelectionBinding(
129                 component,
130                 property,
131                 noSelectionValue);
132         return prepareBinding(binding);
133     }
134
135     public ObjectBinding bindToTextArea(JTextArea JavaDoc component, String JavaDoc property) {
136         TextBinding binding = new TextBinding(component, property);
137         return prepareBinding(binding);
138     }
139
140     /**
141      * Creates a binding that updates a property on text field text changes.
142      */
143     public ObjectBinding bindToTextField(JTextField JavaDoc component, String JavaDoc property) {
144         TextBinding binding = new TextBinding(component, property);
145         return prepareBinding(binding);
146     }
147
148     /**
149      * Configures binding with factory default settings.
150      */
151     protected ObjectBinding prepareBinding(BindingBase binding) {
152         binding.setUsingNullForEmptyStrings(isUsingNullForEmptyStrings());
153         binding.setCheckingForValueChange(isCheckingForValueChange());
154         return binding;
155     }
156
157     public boolean isCheckingForValueChange() {
158         return checkingForValueChange;
159     }
160
161     public void setCheckingForValueChange(boolean callingSetForEqual) {
162         this.checkingForValueChange = callingSetForEqual;
163     }
164
165     public boolean isUsingNullForEmptyStrings() {
166         return usingNullForEmptyStrings;
167     }
168
169     public void setUsingNullForEmptyStrings(boolean usingNullForEmptyStrings) {
170         this.usingNullForEmptyStrings = usingNullForEmptyStrings;
171     }
172 }
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