WeakRegistry

gistfile1.txt

/*
 * The MIT License (MIT)
 *
 * Copyright (c) 2014 The Voxel Plugineering Team
 *
 * 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 com.voxelplugineering.voxelsniper.common.factory;

import java.util.Map;
import java.util.WeakHashMap;

import com.google.common.collect.BiMap;
import com.google.common.collect.HashBiMap;
import com.voxelplugineering.voxelsniper.api.IRegistry;

public class WeakRegistry<K, V> implements IRegistry<K, V>
{

    Map<K, V> registry;
    BiMap<String, V> nameRegistry;
    BiMap<V, String> inverseNameRegistry;
    
    public WeakRegistry()
    {
        registry = new WeakHashMap<K, V>();
        nameRegistry = HashBiMap.create();
        inverseNameRegistry = nameRegistry.inverse();
    }
    
    public void register(String name, K key, V value)
    {
        registry.put(key, value);
        nameRegistry.put(name, value);
    }
    
    public V get(K key)
    {
        return registry.get(key);
    }
    
    public V get(String name)
    {
        return nameRegistry.get(name);
    }
    
    public String getNameForValue(V value)
    {
        return inverseNameRegistry.get(value);
    }
    
    public Iterable<String> getRegisteredNames()
    {
        return nameRegistry.keySet();
    }
    
    public Iterable<V> getRegisteredValues()
    {
        return inverseNameRegistry.keySet();
    }
    
}