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• barchart-util-enums
• 2.0.16
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• EnumLookup.java

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com.barchart.util.enums.lookup.EnumLookup Maven / Gradle / Ivy

/**
 * Copyright (C) 2011-2012 Barchart, Inc. 
 *
 * All rights reserved. Licensed under the OSI BSD License.
 *
 * http://www.opensource.org/licenses/bsd-license.php
 */
package com.barchart.util.enums.lookup;

import java.util.HashMap;
import java.util.Map;

public final class EnumLookup & Keyable> {

	private final Map map;

	private EnumLookup(Map map) {
		this.map = map;
	}

	public V get(K key) {
		return map.get(key);
	}

	public static  & Keyable> EnumLookup create(Class enumClass) {
		V[] enumConstants = enumClass.getEnumConstants();
		Map map = new HashMap();
		for (V constant : enumConstants) {
			K key = constant.getKey();
			map.put(key, constant);
		}
		return new EnumLookup(map);
	}

}