public class ScalarHandler extends Object implements ResultSetHandler<Object>
ResultSetHandler
implementation that converts one
ResultSet
column into an Object. This class is thread safe.ResultSetHandler
Constructor and Description |
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ScalarHandler()
Creates a new instance of ScalarHandler.
|
ScalarHandler(int columnIndex)
Creates a new instance of ScalarHandler.
|
ScalarHandler(String columnName)
Creates a new instance of ScalarHandler.
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public ScalarHandler()
handle()
.public ScalarHandler(int columnIndex)
columnIndex
- The index of the column to retrieve from the
ResultSet
.public ScalarHandler(String columnName)
columnName
- The name of the column to retrieve from the
ResultSet
.public Object handle(ResultSet rs) throws SQLException
ResultSet
column as an object via the
ResultSet.getObject()
method that performs type
conversions.handle
in interface ResultSetHandler<Object>
rs
- ResultSet
to process.null
if there are no rows in
the ResultSet
.SQLException
- if a database access error occursResultSetHandler.handle(java.sql.ResultSet)
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