95 lines
2.8 KiB
Java
95 lines
2.8 KiB
Java
/*
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* Copyright (C) 2012 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.inputmethod.latin;
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import android.util.SparseArray;
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import java.util.ArrayList;
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import java.util.Collection;
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import java.util.Collections;
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import java.util.HashMap;
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import java.util.HashSet;
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import java.util.LinkedList;
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import java.util.Map;
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import java.util.TreeMap;
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import java.util.TreeSet;
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import java.util.concurrent.ConcurrentHashMap;
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import java.util.concurrent.CopyOnWriteArrayList;
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public final class CollectionUtils {
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private CollectionUtils() {
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// This utility class is not publicly instantiable.
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}
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public static <K,V> HashMap<K,V> newHashMap() {
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return new HashMap<K,V>();
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}
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public static <K,V> TreeMap<K,V> newTreeMap() {
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return new TreeMap<K,V>();
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}
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public static <K, V> Map<K,V> newSynchronizedTreeMap() {
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final TreeMap<K,V> treeMap = newTreeMap();
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return Collections.synchronizedMap(treeMap);
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}
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public static <K,V> ConcurrentHashMap<K,V> newConcurrentHashMap() {
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return new ConcurrentHashMap<K,V>();
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}
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public static <E> HashSet<E> newHashSet() {
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return new HashSet<E>();
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}
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public static <E> TreeSet<E> newTreeSet() {
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return new TreeSet<E>();
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}
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public static <E> ArrayList<E> newArrayList() {
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return new ArrayList<E>();
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}
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public static <E> ArrayList<E> newArrayList(final int initialCapacity) {
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return new ArrayList<E>(initialCapacity);
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}
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public static <E> ArrayList<E> newArrayList(final Collection<E> collection) {
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return new ArrayList<E>(collection);
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}
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public static <E> LinkedList<E> newLinkedList() {
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return new LinkedList<E>();
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}
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public static <E> CopyOnWriteArrayList<E> newCopyOnWriteArrayList() {
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return new CopyOnWriteArrayList<E>();
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}
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public static <E> CopyOnWriteArrayList<E> newCopyOnWriteArrayList(
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final Collection<E> collection) {
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return new CopyOnWriteArrayList<E>(collection);
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}
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public static <E> CopyOnWriteArrayList<E> newCopyOnWriteArrayList(final E[] array) {
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return new CopyOnWriteArrayList<E>(array);
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}
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public static <E> SparseArray<E> newSparseArray() {
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return new SparseArray<E>();
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}
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}
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