Details | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 33 | PointedEar | 1 | /* |
| 2 | * Hibernate, Relational Persistence for Idiomatic Java |
||
| 3 | * |
||
| 4 | * Copyright (c) 2008, Red Hat Middleware LLC or third-party contributors as |
||
| 5 | * indicated by the @author tags or express copyright attribution |
||
| 6 | * statements applied by the authors. All third-party contributions are |
||
| 7 | * distributed under license by Red Hat Middleware LLC. |
||
| 8 | * |
||
| 9 | * This copyrighted material is made available to anyone wishing to use, modify, |
||
| 10 | * copy, or redistribute it subject to the terms and conditions of the GNU |
||
| 11 | * Lesser General Public License, as published by the Free Software Foundation. |
||
| 12 | * |
||
| 13 | * This program is distributed in the hope that it will be useful, |
||
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY |
||
| 15 | * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License |
||
| 16 | * for more details. |
||
| 17 | * |
||
| 18 | * You should have received a copy of the GNU Lesser General Public License |
||
| 19 | * along with this distribution; if not, write to: |
||
| 20 | * Free Software Foundation, Inc. |
||
| 21 | * 51 Franklin Street, Fifth Floor |
||
| 22 | * Boston, MA 02110-1301 USA |
||
| 23 | * |
||
| 24 | */ |
||
| 25 | package org.hibernate; |
||
| 26 | |||
| 27 | import java.io.Serializable; |
||
| 28 | import java.sql.ResultSet; |
||
| 29 | import java.util.HashMap; |
||
| 30 | import java.util.Map; |
||
| 31 | |||
| 32 | /** |
||
| 33 | * Specifies the type of JDBC scrollable result set to use |
||
| 34 | * underneath a <tt>ScrollableResults</tt> |
||
| 35 | * |
||
| 36 | * @see Query#scroll(ScrollMode) |
||
| 37 | * @see ScrollableResults |
||
| 38 | * @author Gavin King |
||
| 39 | */ |
||
| 40 | public final class ScrollMode implements Serializable { |
||
| 41 | private final int resultSetType; |
||
| 42 | private final String name; |
||
| 43 | private static final Map INSTANCES = new HashMap(); |
||
| 44 | |||
| 45 | private ScrollMode(int level, String name) { |
||
| 46 | this.resultSetType=level; |
||
| 47 | this.name=name; |
||
| 48 | } |
||
| 49 | |||
| 50 | public String toString() { |
||
| 51 | return name; |
||
| 52 | } |
||
| 53 | |||
| 54 | /** |
||
| 55 | * @return the JDBC result set type code |
||
| 56 | */ |
||
| 57 | public int toResultSetType() { |
||
| 58 | return resultSetType; |
||
| 59 | } |
||
| 60 | |||
| 61 | /** |
||
| 62 | * @see java.sql.ResultSet.TYPE_FORWARD_ONLY |
||
| 63 | */ |
||
| 64 | public static final ScrollMode FORWARD_ONLY = new ScrollMode(ResultSet.TYPE_FORWARD_ONLY, "FORWARD_ONLY"); |
||
| 65 | /** |
||
| 66 | * @see java.sql.ResultSet.TYPE_SCROLL_SENSITIVE |
||
| 67 | */ |
||
| 68 | public static final ScrollMode SCROLL_SENSITIVE = new ScrollMode(ResultSet.TYPE_SCROLL_SENSITIVE, "SCROLL_SENSITIVE"); |
||
| 69 | /** |
||
| 70 | * Note that since the Hibernate session acts as a cache, you |
||
| 71 | * might need to expicitly evict objects, if you need to see |
||
| 72 | * changes made by other transactions. |
||
| 73 | * @see java.sql.ResultSet.TYPE_SCROLL_INSENSITIVE |
||
| 74 | */ |
||
| 75 | public static final ScrollMode SCROLL_INSENSITIVE = new ScrollMode(ResultSet.TYPE_SCROLL_INSENSITIVE, "SCROLL_INSENSITIVE"); |
||
| 76 | |||
| 77 | public boolean lessThan(ScrollMode other) { |
||
| 78 | return this.resultSetType<other.resultSetType; |
||
| 79 | } |
||
| 80 | |||
| 81 | static { |
||
| 82 | INSTANCES.put( FORWARD_ONLY.name, FORWARD_ONLY ); |
||
| 83 | INSTANCES.put( SCROLL_INSENSITIVE.name, SCROLL_INSENSITIVE ); |
||
| 84 | INSTANCES.put( SCROLL_SENSITIVE.name, SCROLL_SENSITIVE ); |
||
| 85 | } |
||
| 86 | |||
| 87 | private Object readResolve() { |
||
| 88 | return INSTANCES.get(name); |
||
| 89 | } |
||
| 90 | |||
| 91 | } |
||
| 92 | |||
| 93 | |||
| 94 | |||
| 95 | |||
| 96 | |||
| 97 |