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The source code/* * Sun Public License Notice * * The contents of this file are subject to the Sun Public License * Version 1.0 (the "License"). You may not use this file except in * compliance with the License. A copy of the License is available at * http://www.sun.com/ * * The Original Code is NetBeans. The Initial Developer of the Original * Code is Sun Microsystems, Inc. Portions Copyright 1997-2001 Sun * Microsystems, Inc. All Rights Reserved. */ package org.netbeans.mdr.persistence; /** * Representation of index in the Storage. * @author Pavel Buzek * @version 1.0 */ public interface Index { /** Returns the unique name of the index in the Storage. * @return * @throws StorageException */ public String getName() throws StorageException; /** Returns the type of values indexed by this index. * @return * @throws StorageException */ public Storage.EntryType getValueType() throws StorageException; /** Returns the type of keys in index. * @return * @throws StorageException */ public Storage.EntryType getKeyType() throws StorageException; /** Returns a set view of the keys contained in this index. * Returned set is read only and may not be modified. * @return keys contained in this index * @throws StorageException */ public java.util.Set keySet() throws StorageException; /** Adds the specified value to values associated in this index with the * specified key. If the index puts limit on number of values associated * with one key and adding value would break this limit, it throws * StorageBadRequestException. * @param key * @param value * @throws StorageException */ public void add(Object key, Object value) throws StorageException; /** Removes all values assosiated in the index with specified key. * @return true if this index changed as a result of this call * @param key * @throws StorageException */ public boolean remove (Object key) throws StorageException; } |
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