|
1
56 package org.objectstyle.cayenne.modeler.editor;
57
58 import java.awt.Component  ;
59 import java.awt.Container ;
60 import java.awt.event.ActionEvent ;
61 import java.awt.event.ActionListener ;
62 import java.util.Map ;
63 import java.util.TreeMap ;
64
65 import javax.swing.DefaultComboBoxModel ;
66 import javax.swing.DefaultListCellRenderer ;
67 import javax.swing.JCheckBox ;
68 import javax.swing.JComboBox ;
69 import javax.swing.JList ;
70 import javax.swing.JPanel ;
71 import javax.swing.JTextField ;
72
73 import org.apache.commons.beanutils.PropertyUtils;
74 import org.apache.log4j.Logger;
75 import org.objectstyle.cayenne.map.event.QueryEvent;
76 import org.objectstyle.cayenne.modeler.ProjectController;
77 import org.objectstyle.cayenne.modeler.util.CayenneWidgetFactory;
78 import org.objectstyle.cayenne.modeler.util.TextAdapter;
79 import org.objectstyle.cayenne.query.GenericSelectQuery;
80 import org.objectstyle.cayenne.query.Query;
81 import org.objectstyle.cayenne.validation.ValidationException;
82
83
88 public abstract class SelectPropertiesPanel extends JPanel {
89
90 private static final Logger logObj = Logger.getLogger(SelectPropertiesPanel.class);
91
92 private static final Integer ZERO = new Integer (0);
93
94 private static final String NO_CACHE_LABEL = "No Result Caching";
95 private static final String LOCAL_CACHE_LABEL = "DataContext Cache";
96 private static final String SHARED_CACHE_LABEL = "Shared Cache";
97
98 private static final Object [] CACHE_POLICIES = new Object [] {
99 GenericSelectQuery.NO_CACHE, GenericSelectQuery.LOCAL_CACHE,
100 GenericSelectQuery.SHARED_CACHE
101 };
102
103 private static final Map cachePolicyLabels = new TreeMap ();
104
105 static {
106 cachePolicyLabels.put(GenericSelectQuery.NO_CACHE, NO_CACHE_LABEL);
107 cachePolicyLabels.put(GenericSelectQuery.LOCAL_CACHE, LOCAL_CACHE_LABEL);
108 cachePolicyLabels.put(GenericSelectQuery.SHARED_CACHE, SHARED_CACHE_LABEL);
109 }
110
111 protected TextAdapter fetchLimit;
112 protected TextAdapter pageSize;
113 protected JComboBox cachePolicy;
114 protected JCheckBox refreshesResults;
115
116 protected ProjectController mediator;
117
118 public SelectPropertiesPanel(ProjectController mediator) {
119 this.mediator = mediator;
120 initView();
121 initController();
122 }
123
124 protected void initView() {
125 fetchLimit = new TextAdapter(new JTextField (7)) {
126
127 protected void updateModel(String text) {
128 setFetchLimit(text);
129 }
130 };
131
132 pageSize = new TextAdapter(new JTextField (7)) {
133
134 protected void updateModel(String text) {
135 setPageSize(text);
136 }
137 };
138
139 cachePolicy = CayenneWidgetFactory.createComboBox();
140 cachePolicy.setRenderer(new CachePolicyRenderer());
141 refreshesResults = new JCheckBox ();
142 }
143
144 protected void initController() {
145 cachePolicy.addActionListener(new ActionListener () {
146
147 public void actionPerformed(ActionEvent event) {
148 Object policy = cachePolicy.getModel().getSelectedItem();
149 setQueryProperty("cachePolicy", policy);
150 }
151 });
152
153 refreshesResults.addActionListener(new ActionListener () {
154
155 public void actionPerformed(ActionEvent event) {
156 Boolean b = refreshesResults.isSelected() ? Boolean.TRUE : Boolean.FALSE;
157 setQueryProperty("refreshingObjects", b);
158 }
159 });
160 }
161
162
166 public void initFromModel(GenericSelectQuery query) {
167 DefaultComboBoxModel cacheModel = new DefaultComboBoxModel (CACHE_POLICIES);
168 cacheModel.setSelectedItem(query.getCachePolicy());
169 cachePolicy.setModel(cacheModel);
170
171 fetchLimit.setText(String.valueOf(query.getFetchLimit()));
172 pageSize.setText(String.valueOf(query.getPageSize()));
173 refreshesResults.setSelected(query.isRefreshingObjects());
174 }
175
176 void setFetchLimit(String string) {
177 string = (string == null) ? "" : string.trim();
178
179 if (string.length() == 0) {
180 setQueryProperty("fetchLimit", ZERO);
181 }
182 else {
183 try {
184 setQueryProperty("fetchLimit", new Integer (string));
185 }
186 catch (NumberFormatException nfex) {
187 throw new ValidationException("Fetch limit must be an integer: " + string);
188 }
189 }
190 }
191
192 void setPageSize(String string) {
193 string = (string == null) ? "" : string.trim();
194
195 if (string.length() == 0) {
196 setQueryProperty("pageSize", ZERO);
197 }
198 else {
199 try {
200 setQueryProperty("pageSize", new Integer (string));
201 }
202 catch (NumberFormatException nfex) {
203 throw new ValidationException("Page size must be an integer: " + string);
204 }
205 }
206 }
207
208 Query getQuery() {
209 return mediator.getCurrentQuery();
210 }
211
212 public void setEnabled(boolean flag) {
213 super.setEnabled(flag);
214
215
217 Container mainPanel = (Container ) getComponent(0);
218 Component [] children = mainPanel.getComponents();
219 for (int i = 0; i < children.length; i++) {
220 children[i].setEnabled(flag);
221 }
222 }
223
224 void setQueryProperty(String property, Object value) {
225 Query query = getQuery();
226 if (query != null) {
227 try {
228 PropertyUtils.setProperty(query, property, value);
229 mediator.fireQueryEvent(new QueryEvent(this, query));
230 }
231 catch (Exception ex) {
232 logObj.warn("Error setting property: " + property, ex);
233 }
234 }
235 }
236
237 final class CachePolicyRenderer extends DefaultListCellRenderer {
238
239 public Component getListCellRendererComponent(
240 JList list,
241 Object object,
242 int arg2,
243 boolean arg3,
244 boolean arg4) {
245
246 if (object != null) {
247 object = cachePolicyLabels.get(object);
248 }
249
250 if (object == null) {
251 object = NO_CACHE_LABEL;
252 }
253
254 return super.getListCellRendererComponent(list, object, arg2, arg3, arg4);
255 }
256 }
257
258 } |
Popular Tags |
Java API By Example, From Geeks To Geeks.