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Generic callback interface for code that operates on a JDBC Statement. Allows to execute any number of operations on a single Statement, for example a single executeUpdate call or repeated executeUpdate calls with varying parameters.
Used internally by JdbcTemplate, but also useful for application code.
JdbcTemplate.execute(StatementCallback)
Method Summary | |
java.lang.Object |
doInStatement(java.sql.Statement stmt)
Gets called by JdbcTemplate.execute with an active JDBC Statement. |
Method Detail |
public java.lang.Object doInStatement(java.sql.Statement stmt) throws java.sql.SQLException, DataAccessException
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. Note that there's special support for single step actions: see JdbcTemplate.queryForObject etc. A thrown RuntimeException is treated as application exception, it gets propagated to the caller of the template.
stmt
- active JDBC Statement
java.sql.SQLException
- if thrown by a JDBC method, to be auto-converted
into a DataAccessException by a SQLExceptionTranslator
DataAccessException
- in case of custom exceptionsJdbcTemplate.queryForObject(String, Class)
,
JdbcTemplate.queryForList(String)
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