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Java > Open Source Codes > org > apache > cayenne > dba > sqlserver > SQLServerSniffer


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19
20 package org.apache.cayenne.dba.sqlserver;
21
22 import java.sql.DatabaseMetaData JavaDoc;
23 import java.sql.SQLException JavaDoc;
24
25 import org.apache.cayenne.dba.DbAdapter;
26 import org.apache.cayenne.dba.DbAdapterFactory;
27
28 /**
29  * Detects SQLServer database from JDBC metadata.
30  *
31  * @since 1.2
32  * @author Andrus Adamchik
33  */
34 public class SQLServerSniffer implements DbAdapterFactory {
35
36     public DbAdapter createAdapter(DatabaseMetaData JavaDoc md) throws SQLException JavaDoc {
37         String JavaDoc dbName = md.getDatabaseProductName();
38         if (dbName == null || dbName.toUpperCase().indexOf("MICROSOFT SQL SERVER") < 0) {
39             return null;
40         }
41
42         SQLServerAdapter adapter = new SQLServerAdapter();
43
44         // detect whether generated keys are supported
45
46         boolean generatedKeys = false;
47         try {
48             generatedKeys = md.supportsGetGeneratedKeys();
49         }
50         catch (Throwable JavaDoc th) {
51             // catch exceptions resulting from incomplete JDBC3 implementation
52 // ** we have to catch Throwable, as unimplemented methods would result in
53 // "AbstractMethodError".
54 }
55
56         adapter.setSupportsGeneratedKeys(generatedKeys);
57         return adapter;
58     }
59 }
60
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