Persistent Storage I: MIDP Record Store - Beginning J2ME: From Novice to Professional - page 109

public String get(String key) {
return (String)mHashtable.get(key);
}
public void put(String key, String value) {
if (value == null) value = "";
mHashtable.put(key, value);
}
private void load() throws RecordStoreException {
RecordStore rs = null;
RecordEnumeration re = null;
try {
rs = RecordStore.openRecordStore(mRecordStoreName, true);
re = rs.enumerateRecords(null, null, false);
while (re.hasNextElement()) {
byte[] raw = re.nextRecord();
String pref = new String(raw);
// Parse out the name.
int index = pref.indexOf('|');
String name = pref.substring(0, index);
String value = pref.substring(index + 1);
put(name, value);
}
}
finally {
if (re != null) re.destroy();
if (rs != null) rs.closeRecordStore();
}
}
public void save() throws RecordStoreException {
RecordStore rs = null;
RecordEnumeration re = null;
try {
rs = RecordStore.openRecordStore(mRecordStoreName, true);
re = rs.enumerateRecords(null, null, false);
// First remove all records, a little clumsy.
while (re.hasNextElement()) {
int id = re.nextRecordId();
rs.deleteRecord(id);
}