org.springframework.jdbc.core
Interface CallableStatementCallback

public interface CallableStatementCallback

Generic callback interface for code that operates on a CallableStatement. Allows to execute any number of operations on a single CallableStatement, for example a single execute call or repeated execute calls with varying parameters.

Used internally by JdbcTemplate, but also useful for application code. Note that the passed-in CallableStatement can have been created by the framework or by a custom CallableStatementCreator. However, the latter is hardly ever necessary, as most custom callback actions will perform updates in which case a standard CallableStatement is fine. Custom actions will always set parameter values themselves, so that CallableStatementCreator capability is not needed either.

Since:

16.03.2004

Author:

Juergen Hoeller

See Also:

JdbcTemplate.execute(String, CallableStatementCallback), JdbcTemplate.execute(CallableStatementCreator, CallableStatementCallback)

Method Summary

java.lang.Object

doInCallableStatement(java.sql.CallableStatement cs) Gets called by JdbcTemplate.execute with an active JDBC CallableStatement.

Method Detail

doInCallableStatement

public java.lang.Object doInCallableStatement(java.sql.CallableStatement cs)
                                       throws java.sql.SQLException

Gets called by JdbcTemplate.execute with an active JDBC CallableStatement. Does not need to care about activating or closing the Connection, or handling transactions.

If called without a thread-bound JDBC transaction (initiated by DataSourceTransactionManager), the code will simply get executed on the JDBC connection with its transactional semantics. If JdbcTemplate is configured to use a JTA-aware DataSource, the JDBC connection and thus the callback code will be transactional if a JTA transaction is active.

Allows for returning a result object created within the callback, i.e. a domain object or a collection of domain objects. A thrown RuntimeException is treated as application exception, it gets propagated to the caller of the template.

Parameters:

cs - active JDBC CallableStatement

Returns:

a result object, or null if none

Throws:

java.sql.SQLException - in case of errors