+
+ }
+
+ public class ExpandListener implements IExpansionListener{
+ @Override
+ public void expansionStateChanging(ExpansionEvent e) {
+ }
+ @Override
+ public void expansionStateChanged(ExpansionEvent e) {
+ PreferencesUtil.getPreferenceStore().setValue(getPrefKey(), e.getState());
+ }
+ }
+
+ /**
+ * Adds a custom implementation of IExpansionListener to this section
+ * which stores the expansion state in the preferences
+ */
+ protected void addExpandListener() {
+ PreferencesUtil.getPreferenceStore().setDefault(getPrefKey(), isExpanded());
+ setExpanded(PreferencesUtil.getPreferenceStore().getBoolean(getPrefKey()));
+ addExpansionListener(new ExpandListener());
+ }
+
+ private String getPrefKey() {
+ return this.getClass().getCanonicalName()+";"+entity.getClass().getCanonicalName();