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comparison src/fschmidt/db/base/DbTableImpl.java @ 68:00520880ad02

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add fschmidt source
author Franklin Schmidt <fschmidt@gmail.com>
date Sun, 05 Oct 2025 17:24:15 -0600
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67:9d0fefce6985 68:00520880ad02
1 /*
2 Copyright (c) 2008 Franklin Schmidt <fschmidt@gmail.com>
3
4 Permission is hereby granted, free of charge, to any person obtaining a copy
5 of this software and associated documentation files (the "Software"), to deal
6 in the Software without restriction, including without limitation the rights
7 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
8 copies of the Software, and to permit persons to whom the Software is
9 furnished to do so, subject to the following conditions:
10
11 The above copyright notice and this permission notice shall be included in
12 all copies or substantial portions of the Software.
13
14 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
20 THE SOFTWARE.
21 */
22
23 package fschmidt.db.base;
24
25 import fschmidt.db.DbKey;
26 import fschmidt.db.DbKeySetter;
27 import fschmidt.db.DbObject;
28 import fschmidt.db.DbObjectFactory;
29 import fschmidt.db.ListenerList;
30 import fschmidt.db.SQLRuntimeException;
31 import fschmidt.db.extend.DbDatabaseExt;
32 import fschmidt.db.extend.DbTableExt;
33
34 import java.sql.Connection;
35 import java.sql.PreparedStatement;
36 import java.sql.ResultSet;
37 import java.sql.SQLException;
38 import java.util.Collection;
39 import java.util.HashMap;
40 import java.util.Map;
41
42
43 final class DbTableImpl<K extends DbKey,V extends DbObject<K,V>> extends DbTableExt<K,V> {
44 private final String tableName;
45 private final DbKeySetter<K> keySetter;
46 private final DbObjectFactory<K,V> objFactory;
47
48 DbTableImpl(DbDatabaseExt database,String tableName,DbKeySetter<K> keySetter,DbObjectFactory<K,V> objFactory) {
49 super(database);
50 this.tableName = tableName;
51 this.keySetter = keySetter;
52 this.objFactory = objFactory;
53 }
54
55 public String getTableName() {
56 return tableName;
57 }
58
59 public DbKeySetter<K> getKeySetter() {
60 return keySetter;
61 }
62
63 public final V findByPrimaryKey(K key) {
64 try {
65 Connection con = database.getConnection();
66 try {
67 PreparedStatement stmt = keySetter.prepareStatement(
68 con, key, "select * from "+tableName, 1
69 );
70 ResultSet rs = stmt.executeQuery();
71 V obj = null;
72 if( rs.next() )
73 obj = getDbObject(key,rs);
74 stmt.close();
75 return obj;
76 } finally {
77 con.close();
78 }
79 } catch(SQLException e) {
80 throw new SQLRuntimeException("key = "+key,e);
81 }
82 }
83
84 public final Map<K,V> findByPrimaryKey(Collection<K> keys) {
85 Map<K,V> map = new HashMap<K,V>();
86 try {
87 Connection con = database.getConnection();
88 try {
89 PreparedStatement stmt = keySetter.prepareStatement(
90 con, keys, "select * from "+tableName, getDbDatabase().arcana()
91 );
92 ResultSet rs = stmt.executeQuery();
93 while( rs.next() ) {
94 K key = keySetter.getKey(rs);
95 map.put( key, getDbObject(key,rs) );
96 }
97 stmt.close();
98 } finally {
99 con.close();
100 }
101 } catch(SQLException e) {
102 throw new SQLRuntimeException("keys = "+keys,e);
103 }
104 return map;
105 }
106
107 public V getDbObject(K key,ResultSet rs,String tableName)
108 throws SQLException
109 {
110 return objFactory.makeDbObject(key,rs,tableName);
111 }
112
113
114 private ListenerList<V> preInsertListeners;
115 private ListenerList<V> preUpdateListeners;
116 private ListenerList<V> preDeleteListeners;
117 private ListenerList<V> postInsertListeners;
118 private ListenerList<V> postUpdateListeners;
119 private ListenerList<V> postDeleteListeners;
120
121 public synchronized ListenerList<V> getPreInsertListeners() {
122 if (preInsertListeners == null)
123 preInsertListeners = new ListenerList<V>();
124 return preInsertListeners;
125 }
126
127 public synchronized ListenerList<V> getPreUpdateListeners() {
128 if (preUpdateListeners == null)
129 preUpdateListeners = new ListenerList<V>();
130 return preUpdateListeners;
131 }
132
133 public synchronized ListenerList<V> getPreDeleteListeners() {
134 if (preDeleteListeners == null)
135 preDeleteListeners = new ListenerList<V>();
136 return preDeleteListeners;
137 }
138
139 public synchronized ListenerList<V> getPostInsertListeners() {
140 if (postInsertListeners == null)
141 postInsertListeners = new ListenerList<V>();
142 return postInsertListeners;
143 }
144
145 public synchronized ListenerList<V> getPostUpdateListeners() {
146 if (postUpdateListeners == null)
147 postUpdateListeners = new ListenerList<V>();
148 return postUpdateListeners;
149 }
150
151 public synchronized ListenerList<V> getPostDeleteListeners() {
152 if (postDeleteListeners == null)
153 postDeleteListeners = new ListenerList<V>();
154 return postDeleteListeners;
155 }
156
157 public void uncache(DbKey key) {}
158
159 }