I am trying to use the data source object
(org.apache.struts.util.GenericDataSource) in the 20001128 build of struts
1.0 with the JDBC-ODBC bridge provider but am getting the following
exception:
java.lang.UnsupportedOperationException
at
sun.jdbc.odbc.JdbcOdbcConnection.getTypeMap(JdbcOdbcConnection.java:1432)
at
org.apache.struts.util.GenericConnection.(GenericConnection.java:116)
at
org.apache.struts.util.GenericDataSource.createConnection(GenericDataSource.
java:530)
at
org.apache.struts.util.GenericDataSource.open(GenericDataSource.java:468)
at
org.apache.struts.action.ActionServlet.initDataSource(ActionServlet.java:924
)
at
org.apache.struts.action.ActionServlet.init(ActionServlet.java:410)
at javax.servlet.GenericServlet.init(GenericServlet.java:258)
at
org.apache.tomcat.core.ServletWrapper.doInit(ServletWrapper.java:317)
at org.apache.tomcat.core.Handler.init(Handler.java:215)
at
org.apache.tomcat.core.ServletWrapper.init(ServletWrapper.java:296)
at org.apache.tomcat.core.Handler.service(Handler.java:254)
at
org.apache.tomcat.core.ServletWrapper.service(ServletWrapper.java:372)
at
org.apache.tomcat.core.ContextManager.internalService(ContextManager.java:79
7)
at
org.apache.tomcat.core.ContextManager.service(ContextManager.java:743)
at
org.apache.tomcat.service.http.HttpConnectionHandler.processConnection(HttpC
onnectionHandler.java:210)
at
org.apache.tomcat.service.TcpWorkerThread.runIt(PoolTcpEndpoint.java:416)
at
org.apache.tomcat.util.ThreadPool$ControlRunnable.run(ThreadPool.java:498)
at java.lang.Thread.run(Thread.java:484)
It appears that the getTypeMap() and setTypeMap() methods of
JdbcOdbcConnection throw an UnsupportedOperationException rather than a
SQLException. This happens in both jdk 1.2.2 and jdk 1.3 on Windows NT. In
GenericConnection.java SQLExceptions raised by these methods are simply
ignored so I have modified the class (attached) to also ignore
UnsupportedOperationExceptions and this seems to fix the problem. Can
anybody tell me if this is a sensible thing to do or does it just mask some
underlying problem?
Also it appears that the <data-source> element is required in
struts-config.xml rather than being optional. Is this intentional?
-------------------------------------------
Howard Moore
Senior Software Engineer
Datapulse CTI
Tel : +44 (0)1491 418000
Fax : +44 (0)1491 411459
E-mail: [EMAIL PROTECTED]
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GenericConnection.java
