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EclipseLink/Examples/JPA/nonJDBCArgsToStoredProcedures
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Revision as of 13:08, 23 November 2007 by Unnamed Poltroon (Talk) (→How to handle nonJDBC arguments for Oracle Stored Procedures)
{available as of EclipseLink 1.0M2}
How to handle nonJDBC arguments for Oracle Stored Procedures
The standard way of handling a Stored Procedure is to build an instance of oracle.toplink.queryframework.StoredProcedureCall. However, the arguments must be compatible with the JDBC specification.
To handle nonJDBC arguments (e.g. BOOLEAN, PLS_INTEGER, PL/SQL record, etc.) a new sub-class has been created: oracle.toplink.platform.database.oracle.PLSQLStoredProcedureCall:
For the target procedure:
procedure bool_test(x IN BOOLEAN)
the TopLink code would be:
<span style='color:#7f0055; font-weight:bold; '>import</span><span style='color:#7f0055; '> oracle</span><span style='color:#7f0055; '>.</span><span style='color:#7f0055; '>toplink</span><span style='color:#7f0055; '>.</span><span style='color:#7f0055; '>internal</span><span style='color:#7f0055; '>.</span><span style='color:#7f0055; '>helper</span><span style='color:#7f0055; '>.</span><span style='color:#7f0055; '>NonSynchronizedVector</span><span style='color:#7f0055; '>;</span> <span style='color:#7f0055; font-weight:bold; '>import</span><span style='color:#7f0055; '> oracle</span><span style='color:#7f0055; '>.</span><span style='color:#7f0055; '>toplink</span><span style='color:#7f0055; '>.</span><span style='color:#7f0055; '>platform</span><span style='color:#7f0055; '>.</span><span style='color:#7f0055; '>database</span><span style='color:#7f0055; '>.</span><span style='color:#7f0055; '>oracle</span><span style='color:#7f0055; '>.</span><span style='color:#7f0055; '>PLSQLStoredProcedureCall</span><span style='color:#7f0055; '>;</span> <span style='color:#7f0055; font-weight:bold; '>import</span><span style='color:#7f0055; '> static oracle</span><span style='color:#7f0055; '>.</span><span style='color:#7f0055; '>toplink</span><span style='color:#7f0055; '>.</span><span style='color:#7f0055; '>platform</span><span style='color:#7f0055; '>.</span><span style='color:#7f0055; '>database</span><span style='color:#7f0055; '>.</span><span style='color:#7f0055; '>oracle</span><span style='color:#7f0055; '>.</span><span style='color:#7f0055; '>OraclePLSQLTypes</span><span style='color:#7f0055; '>.</span><span style='color:#7f0055; '>PLSQLBoolean</span><span style='color:#7f0055; '>;</span> <span style='color:#7f0055; font-weight:bold; '>public</span> <span style='color:#7f0055; font-weight:bold; '>class</span> NonJDBCTestSuite { <span style='color:#7f0055; font-weight:bold; '>public</span> <span style='color:#7f0055; font-weight:bold; '>static</span> <span style='color:#7f0055; font-weight:bold; '>void</span> main(<span style='color:#7f0055; font-weight:bold; '>String</span> args[]) { PLSQLStoredProcedureCall call = <span style='color:#7f0055; font-weight:bold; '>new</span> PLSQLStoredProcedureCall(); call.setProcedureName(<span style='color:#2a00ff; '>"bool_in_test"</span>); call.addNamedArgument(<span style='color:#2a00ff; '>"X"</span>, PLSQLBoolean); DataModifyQuery query = <span style='color:#7f0055; font-weight:bold; '>new</span> DataModifyQuery(); query.addArgument(<span style='color:#2a00ff; '>"X"</span>); query.setCall(call); <span style='color:#7f0055; font-weight:bold; '>Vector</span> queryArgs = <span style='color:#7f0055; font-weight:bold; '>new</span> NonSynchronizedVector(); queryArgs.add(<span style='color:#7f0055; font-weight:bold; '>Integer</span>.valueOf(1)); s.executeQuery(query, queryArgs); } }