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BOOK: Professional Java Development with the Spring Framework
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Old August 11th, 2005, 02:49 PM
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Default User-defined type as input for store procedures

Is it possible to call stored procedures that take Oracle user-defined types (STRUCTS and ARRAYS) as input parameters in Spring (as stated on p.210-211, "Passing in a Complex Type as a Parameter")? The connection wrappers returned by the data sources I have tried cause class cast exception in:


This seems to be a problem even when you aren't using the Spring framework. If, using JDBC, I get the connection directly from the DriverManager (java.sql.DriverManager.getConnection()), I can call a store procedure that takes UDTs as input. If I take the same code and change it to get the connection from, say, a WebLogic connection pool I get a similar classcast exception with its source in StructDescriptor.

It looks like it is possible to point a Spring app at an unpooled connection. That might solve the problem but, as the authors point out, that is not really an option for a production environment.

David B

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