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From "Dan Fabulich (JIRA)" <j...@apache.org>
Subject [jira] Created: (DBUTILS-50) Support CallableStatement "out" parameters
Date Wed, 25 Feb 2009 16:59:04 GMT
Support CallableStatement "out" parameters
------------------------------------------

                 Key: DBUTILS-50
                 URL: https://issues.apache.org/jira/browse/DBUTILS-50
             Project: Commons DbUtils
          Issue Type: New Feature
            Reporter: Dan Fabulich


Using fillStatement and the new fillStatementWithBean, you can use a CallableStatement like
a PreparedStatement, retrieve its ResultSet and handle it with a ResultSetHandler.  But we
don't yet support registering "out" parameters on the CallableStatement in a convenient way
and retrieving them back into an object.

DBUTILS-28 requests stored procedure support and provides a patch, but I don't like the patch.
 Regardless, we really should support a few helpers like:

{code}
void registerOutParameters(CallableStatement stmt, int... sqlTypes)

Object[] getOutParameters(CallableStatement stmt)

void registerOutParameters(CallableStatement stmt, Class<?> beanClass)

<T> T getOutParameters(CallableStatement stmt, Class<T> beanClass)
{code}

You should be able to write code like this:

{code}
CallableStatement stmt = runner.prepareCall(myString);
helper.registerOutParameters(stmt, MyBean.class);
queryRunner.fillStatement(stmt, foo, bar, baz);
stmt.executeUpdate();
MyBean bean = helper.getOutParameters(stmt, MyBean.class);
{code}

Or like this:

{code}
CallableStatement stmt = runner.prepareCall(myString);
helper.registerOutParameters(stmt, TINYINT, DECIMAL);
queryRunner.fillStatement(stmt, foo, bar, baz);
stmt.executeUpdate();
Object[] result = helper.getOutParameters(stmt);
{code}

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