RowMapper
| org.springframework.jdbc.core.RowMapper<T> |
 Known Indirect Subclasses
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Class Overview
An interface used by JdbcTemplate for mapping rows of a
java.sql.ResultSet on a per-row basis. Implementations of this
interface perform the actual work of mapping each row to a result object,
but don't need to worry about exception handling.
SQLExceptions will be caught and handled
by the calling JdbcTemplate.
Typically used either for JdbcTemplate's query methods
or for out parameters of stored procedures. RowMapper objects are
typically stateless and thus reusable; they are an ideal choice for
implementing row-mapping logic in a single place.
Alternatively, consider subclassing
MappingSqlQuery from the
jdbc.object package: Instead of working with separate
JdbcTemplate and RowMapper objects, you can build executable query
objects (containing row-mapping logic) in that style.
Summary
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Implementations must implement this method to map each row of data
in the ResultSet.
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Public Methods
public abstract T mapRow (ResultSet rs, int rowNum)
Implementations must implement this method to map each row of data
in the ResultSet. This method should not call next() on
the ResultSet; it is only supposed to map values of the current row.
Parameters
| rs | the ResultSet to map (pre-initialized for the current row) |
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| rowNum | the number of the current row |
Returns
- the result object for the current row
Throws
| SQLException | if a SQLException is encountered getting column values (that is, there's no need to catch SQLException) |
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