Mercurial > dive4elements > river
comparison flys-aft/src/main/java/de/intevation/db/ConnectedStatements.java @ 4074:100c4e0a45e1
Improved infrastructure for prepared statements.
flys-aft/trunk@3407 c6561f87-3c4e-4783-a992-168aeb5c3f6f
| author | Sascha L. Teichmann <sascha.teichmann@intevation.de> |
|---|---|
| date | Tue, 13 Dec 2011 14:32:55 +0000 |
| parents | |
| children | ee0c60757a94 |
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| 4073:2c70fae83d0c | 4074:100c4e0a45e1 |
|---|---|
| 1 package de.intevation.db; | |
| 2 | |
| 3 import java.util.HashMap; | |
| 4 import java.util.Map; | |
| 5 | |
| 6 import java.sql.Connection; | |
| 7 import java.sql.SQLException; | |
| 8 | |
| 9 public class ConnectedStatements | |
| 10 { | |
| 11 protected Connection connection; | |
| 12 | |
| 13 protected Map<String, SymbolicStatement> statements; | |
| 14 | |
| 15 protected Map<String, SymbolicStatement.Instance> boundStatements; | |
| 16 | |
| 17 public ConnectedStatements( | |
| 18 Connection connection, | |
| 19 Map<String, SymbolicStatement> statements | |
| 20 ) { | |
| 21 this.connection = connection; | |
| 22 this.statements = statements; | |
| 23 | |
| 24 boundStatements = new HashMap<String, SymbolicStatement.Instance>(); | |
| 25 } | |
| 26 | |
| 27 public SymbolicStatement.Instance getStatement(String key) | |
| 28 throws SQLException | |
| 29 { | |
| 30 SymbolicStatement.Instance stmnt = boundStatements.get(key); | |
| 31 if (stmnt != null) { | |
| 32 return stmnt; | |
| 33 } | |
| 34 | |
| 35 SymbolicStatement ss = statements.get(key); | |
| 36 if (ss == null) { | |
| 37 return null; | |
| 38 } | |
| 39 | |
| 40 stmnt = ss.new Instance(connection); | |
| 41 boundStatements.put(key, stmnt); | |
| 42 return stmnt; | |
| 43 } | |
| 44 | |
| 45 public void close() { | |
| 46 for (SymbolicStatement.Instance s: boundStatements.values()) { | |
| 47 s.close(); | |
| 48 } | |
| 49 | |
| 50 try { | |
| 51 connection.close(); | |
| 52 } | |
| 53 catch (SQLException sqle) { | |
| 54 } | |
| 55 } | |
| 56 } | |
| 57 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |