filebot/source/net/sourceforge/tuned/PreferencesList.java

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package net.sourceforge.tuned;
import java.util.AbstractList;
import java.util.ArrayList;
import java.util.List;
import java.util.prefs.Preferences;
import net.sourceforge.tuned.PreferencesMap.Adapter;
public class PreferencesList<T> extends AbstractList<T> {
private final PreferencesMap<T> prefs;
public PreferencesList(PreferencesMap<T> preferencesMap) {
this.prefs = preferencesMap;
}
@Override
public T get(int index) {
return prefs.get(key(index));
}
private String key(int index) {
return Integer.toString(index);
}
@Override
public int size() {
return prefs.size();
}
@Override
public boolean add(T e) {
prefs.put(key(size()), e);
return true;
}
@Override
public T remove(int index) {
int lastIndex = size() - 1;
List<T> shiftList = new ArrayList<T>(subList(index, lastIndex + 1));
T value = shiftList.remove(0);
prefs.remove(key(lastIndex));
for (T element : shiftList) {
set(index, element);
index++;
}
return value;
}
@Override
public T set(int index, T element) {
if (index < 0 || index >= size())
throw new IndexOutOfBoundsException();
return prefs.put(key(index), element);
}
@Override
public void clear() {
prefs.clear();
}
public void set(List<T> data) {
clear();
addAll(data);
}
public static <T> PreferencesList<T> map(Preferences prefs, Class<T> type) {
return new PreferencesList<T>(PreferencesMap.map(prefs, type));
}
public static <T> PreferencesList<T> map(Preferences prefs, Adapter<T> adapter) {
return new PreferencesList<T>(PreferencesMap.map(prefs, adapter));
}
}