Package overit.geocall.sql

Class DBDrivenLoader

java.lang.Object

overit.geocall.sql.DBDrivenLoader

All Implemented Interfaces:

DBObjectMap

public class DBDrivenLoader
extends Object
implements DBObjectMap

The class extends a DBObjectMap and can be used in specifical cases to force load (for example to force, during the creation of a DBView, the instantiation of a Float, etc.)

Field Summary

Fields

Modifier and Type	Field	Description
protected int	_type	Stores the forcing type
static final int	TYPE_BOOLEAN	Constant that defines the Boolean forcing
static final int	TYPE_DATE	Constant that defines the Date forcing
static final int	TYPE_DOUBLE	Constant that defines the Double forcing
static final int	TYPE_EURO	Constant that defines the Euro forcing
static final int	TYPE_FLOAT	Constant that defines the Float forcing
static final int	TYPE_INTEGER	Constant that defines the Integer forcing
static final int	TYPE_LONG	Constant that defines the Long forcing
static final int	TYPE_STRING	Constant that defines the String forcing

Constructor Summary

Constructors

Constructor	Description
DBDrivenLoader(int type)	Creates the instance of DBDrivenLoader with the specific mapping type

Method Summary

Modifier and Type	Method	Description
Object	loadInstance(ResultSet rs, int field)	Implements the transformations and the reading of a field in a Java object, starting from a ResultSet, the position and the informations of the ResultSetMetaData
void	saveInstance(int field, Object o)	Does nothing because the object does not have the ability to save
void	saveInstance(PreparedStatement ps, int field, Object o)	Does nothing because the object does not have the ability to save

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface overit.geocall.sql.DBObjectMap

loadInstance, loadInstance

Field Details

TYPE_INTEGER

public static final int TYPE_INTEGER

Constant that defines the Integer forcing

See Also:

• Constant Field Values

TYPE_LONG

public static final int TYPE_LONG

Constant that defines the Long forcing

See Also:

• Constant Field Values

TYPE_FLOAT

public static final int TYPE_FLOAT

Constant that defines the Float forcing

See Also:

• Constant Field Values

TYPE_DOUBLE

public static final int TYPE_DOUBLE

Constant that defines the Double forcing

See Also:

• Constant Field Values

TYPE_DATE

public static final int TYPE_DATE

Constant that defines the Date forcing

See Also:

• Constant Field Values

TYPE_EURO

public static final int TYPE_EURO

Constant that defines the Euro forcing

See Also:

• Constant Field Values

TYPE_BOOLEAN

public static final int TYPE_BOOLEAN

Constant that defines the Boolean forcing

See Also:

• Constant Field Values

TYPE_STRING

public static final int TYPE_STRING

Constant that defines the String forcing

See Also:

• Constant Field Values

_type

protected int _type

Stores the forcing type

Constructor Details

DBDrivenLoader

public DBDrivenLoader(int type)

Creates the instance of DBDrivenLoader with the specific mapping type

Parameters:

type - Specific mapping type

Method Details

loadInstance

public Object loadInstance(ResultSet rs,
 int field)
                    throws SQLException

Implements the transformations and the reading of a field in a Java object, starting from a ResultSet, the position and the informations of the ResultSetMetaData

Specified by:

loadInstance in interface DBObjectMap

Parameters:

rs - The ResultSet from which retrieve the ResultSetMetaData and the values used to create the Java object

field - Number of the field to read from the ResultSet

Returns:

The created object instance, created according the choosen forcing type

Throws:

SQLException - The operation of reading from the database can raise an SQLException

saveInstance

public void saveInstance(PreparedStatement ps,
 int field,
 Object o)
                  throws SQLException

Does nothing because the object does not have the ability to save

Specified by:

saveInstance in interface DBObjectMap

Parameters:

ps - Does nothing because the object does not have the ability to save

field - Does nothing because the object does not have the ability to save

o - Does nothing because the object does not have the ability to save

Throws:

SQLException - Does nothing because the object does not have the ability to save

saveInstance

public void saveInstance(int field,
 Object o)
                  throws SQLException

Does nothing because the object does not have the ability to save

Parameters:

field - Does nothing because the object does not have the ability to save

o - Does nothing because the object does not have the ability to save

Throws:

SQLException - Does nothing because the object does not have the ability to save