org.springframework.jdbc.core.simple
Class ParameterizedBeanPropertyRowMapper<T>
java.lang.Object
org.springframework.jdbc.core.AbstractBeanPropertyRowMapper
org.springframework.jdbc.core.simple.ParameterizedBeanPropertyRowMapper<T>
- All Implemented Interfaces:
- RowMapper, ParameterizedRowMapper<T>
public class ParameterizedBeanPropertyRowMapper<T>
- extends AbstractBeanPropertyRowMapper
- implements ParameterizedRowMapper<T>
Generic ParameterizedRowMapper implementation that converts a row into a new instance
of the specified mapped target class. The mapped target class must be a top-level class
and it must have a default or no-arg constructor.
Uses Java 5 covariant return types to override the return type of the mapRow(java.sql.ResultSet, int)
method
to be the type parameter T
.
Column values are mapped based on matching the column name as obtained from result set
metadata to public setters for the corresponding properties. The names are matched either
directly or by transforming a name separating the parts with underscores to the same name
using "camel" case.
Mapping is provided for fields in the target class that are defined as any of the
following types: String, byte, Byte, short, Short, int, Integer, long, Long, float, Float,
double, Double, BigDecimal, boolean, Boolean and java.util.Date.
To facilitate mapping between columns and fields that don't have matching names, try using column
aliases in the SQL statement like "select fname as first_name from customer".
Please note that this class is designed to provide convenience rather than high performance.
For best performance consider using a custom RowMapper.
- Since:
- 2.5
- Author:
- trisberg
- See Also:
ParameterizedRowMapper
Method Summary |
T |
mapRow(ResultSet rs,
int rowNumber)
Extract the values for all columns in the current row. |
static
|
newInstance(Class<T> mappedClass)
Static factory method to create a new ParameterizedBeanPropertyRowMapper. |
void |
setMappedClass(Class<T> mappedClass)
Set the class that each row should be mapped to. |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
ParameterizedBeanPropertyRowMapper
public ParameterizedBeanPropertyRowMapper()
- Create a new ParameterizedBeanPropertyRowMapper.
- See Also:
setMappedClass(java.lang.Class)
newInstance
public static <T> ParameterizedBeanPropertyRowMapper<T> newInstance(Class<T> mappedClass)
- Static factory method to create a new ParameterizedBeanPropertyRowMapper.
- Parameters:
mappedClass
- the class that each row should be mapped to.
setMappedClass
public void setMappedClass(Class<T> mappedClass)
- Set the class that each row should be mapped to.
- Parameters:
mappedClass
- the mapped class
mapRow
public T mapRow(ResultSet rs,
int rowNumber)
throws SQLException
- Extract the values for all columns in the current row.
Utilizes public setters and result set metadata.
- Specified by:
mapRow
in interface RowMapper
- Specified by:
mapRow
in interface ParameterizedRowMapper<T>
- Parameters:
rs
- the ResultSet to map (pre-initialized for the current row)rowNumber
- 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)- See Also:
ResultSetMetaData
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