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/*
* The MIT License (MIT)
*
* Copyright (c) 2012-2014 lacolaco.net
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
package net.lacolaco.smileessence.view.adapter;
import android.app.Activity;
import net.lacolaco.smileessence.entity.IdObject;
import net.lacolaco.smileessence.viewmodel.IViewModel;
import java.util.*;
public class OrderedCustomListAdapter<T extends IViewModel & IdObject> extends CustomListAdapter<T> {
// ------------------------------ FIELDS ------------------------------
protected final Map<Long, T> treeMap;
// --------------------------- CONSTRUCTORS ---------------------------
public OrderedCustomListAdapter(Activity activity) {
this(activity, Long::compare);
}
public OrderedCustomListAdapter(Activity activity, Comparator<Long> comparator) {
super(activity);
this.treeMap = new TreeMap<>(Collections.reverseOrder(comparator)); // 降順
}
// ------------------------ OVERRIDE METHODS ------------------------
@Override
protected List<T> getFrozenList() {
return Collections.unmodifiableList(new ArrayList<>(treeMap.values()));
}
// -------------------------- OTHER METHODS --------------------------
public void addItem(T... items) {
synchronized (LOCK) {
for (T item : items) {
treeMap.put(item.getId(), item);
}
}
}
public void clear() {
synchronized (LOCK) {
treeMap.clear();
}
}
public T removeItem(T item) {
synchronized (LOCK) {
return treeMap.remove(item.getId());
}
}
public int removeItemById(long id) {
synchronized (LOCK) {
T item = treeMap.remove(id);
if (item == null) {
return 0;
} else {
return 1;
}
}
}
}
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