EntryFactory.java

/*
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
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package com.sun.tools.visualvm.api.caching;

/**
 * @author Jaroslav Bachorik
 */
public interface EntryFactory<K,V> {
    /**
     * This method will map the given key value to an entry value
     * It can return NULL if it's not possible to map the given key to
     * an instance of {@linkplain Entry}
     * @param key The key to create entry from
     * @return Returns the resolved object or NULL
     **/
    Entry<V> createEntry(K key);

    final public static EntryFactory DEFAULT = new EntryFactory() {

        @Override
        public Entry createEntry(Object key) {
            return new Entry(key);
        }
    };
}