001    /*
002     * Cumulus4j - Securing your data in the cloud - http://cumulus4j.org
003     * Copyright (C) 2011 NightLabs Consulting GmbH
004     *
005     * This program is free software: you can redistribute it and/or modify
006     * it under the terms of the GNU Affero General Public License as
007     * published by the Free Software Foundation, either version 3 of the
008     * License, or (at your option) any later version.
009     *
010     * This program is distributed in the hope that it will be useful,
011     * but WITHOUT ANY WARRANTY; without even the implied warranty of
012     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
013     * GNU Affero General Public License for more details.
014     *
015     * You should have received a copy of the GNU Affero General Public License
016     * along with this program.  If not, see <http://www.gnu.org/licenses/>.
017     */
018    package org.cumulus4j.store.model;
019    
020    import javax.jdo.annotations.IdentityType;
021    import javax.jdo.annotations.Inheritance;
022    import javax.jdo.annotations.InheritanceStrategy;
023    import javax.jdo.annotations.PersistenceCapable;
024    import javax.jdo.annotations.Unique;
025    
026    /**
027     * <p>
028     * Persistent index information for fields of type <code>byte</code> or {@link Byte}.
029     * </p>
030     * <p>
031     * This {@link IndexEntry}-subclass is used to index object-references, too. In this case,
032     * the values in {@link #getIndexKey() indexKey} are {@link DataEntry#getDataEntryID() dataEntryID}s.
033     * </p>
034     *
035     * @author Marco หงุ่ยตระกูล-Schulze - marco at nightlabs dot de
036     */
037    @PersistenceCapable(identityType=IdentityType.APPLICATION, detachable="true")
038    @Inheritance(strategy=InheritanceStrategy.NEW_TABLE)
039    @Unique(members={"fieldMeta", "indexKey"})
040    public class IndexEntryByte
041    extends IndexEntry
042    {
043            private Byte indexKey;
044    
045            @Override
046            public Byte getIndexKey() {
047                    return indexKey;
048            }
049    
050            @Override
051            protected void setIndexKey(Object indexKey) {
052                    this.indexKey = (Byte) indexKey;
053            }
054    }