/**
* Puts a string array into the Preferences, by linking its elements with ';' into a single
* string. Escape characters make the process transparent even if strings contain ';'.
*/
public void putStringArray(String key, String[] value) {
if (value == null) {
remove(key);
return;
}
if (value.length > 0) {
StringBuffer linked = new StringBuffer();
for (int i = 0; i < value.length - 1; i++) {
linked.append(makeEscape(value[i]));
linked.append(";");
}
linked.append(makeEscape(value[value.length - 1]));
put(key, linked.toString());
} else {
put(key, "");
}
}
/**
* Removes all entries keyed by prefix+number, where number is equal to or higher than the given
* number.
*
* @param number or higher.
*/
public void purgeSeries(String prefix, int number) {
while (get(prefix + number) != null) {
remove(prefix + number);
number++;
}
}