Package overit.geocall.sql

Class DBObject

java.lang.Object

overit.geocall.sql.DBObject

All Implemented Interfaces:

DBObjectMap

public class DBObject
extends Object
implements DBObjectMap

The object realizes the memorization of a DB SQL object. It implements DBObjectMap, so has the map properties for the memorization; furthermore has a member variable that will be properly transformed in the statement saving phase.

Field Summary

Fields

Modifier and Type	Field	Description
protected Object	_o	Instance readed directly from the DB
protected int	_type	SQL type extract from the constants Types

Constructor Summary

Constructors

Constructor	Description
DBObject(Object o, int type)	Creates the object starting from a Java object and a type (Types) that defines the save mode

Method Summary

Modifier and Type	Method	Description
Object	getObject()	Returns the Java object instance
int	getType()	Returs the type (Types) with which the object was instantiated
Object	loadInstance(ResultSet rs, int field)	Loads the Java content of the instance and its SQL type from the ResultSet and the ResultSetMetaData
void	saveInstance(PreparedStatement ps, int field, Object o)	Registers the instance of the object passed (that mus always be a DBObject) in a PreparedStatement
void	setObject(Object o)	Sets the content (the Java object) of the instance
void	setType(int type)	Sets the type (Types)
String	toString()	Returns the string representation of the DBObject

Methods inherited from class java.lang.Object

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

Methods inherited from interface overit.geocall.sql.DBObjectMap

loadInstance, loadInstance

Field Details

_type

protected int _type

SQL type extract from the constants Types

_o

protected Object _o

Instance readed directly from the DB

Constructor Details

DBObject

public DBObject(Object o,
 int type)

Creates the object starting from a Java object and a type (Types) that defines the save mode

Parameters:

o - The Java object

type - The SQL type

Method Details

getObject

public Object getObject()

Returns the Java object instance

Returns:

The Java object instance

getType

public int getType()

Returs the type (Types) with which the object was instantiated

Returns:

The type with which the object was instantiated

setObject

public void setObject(Object o)

Sets the content (the Java object) of the instance

Parameters:

o - The Java object to set

setType

public void setType(int type)

Sets the type (Types)

Parameters:

type - The SQL type that defines the save mode

loadInstance

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

Loads the Java content of the instance and its SQL type from the ResultSet and the ResultSetMetaData

Specified by:

loadInstance in interface DBObjectMap

Parameters:

rs - The reading source

field - The field from which read

Returns:

FReturns itself with the new contents readed from the DB

Throws:

SQLException - If an error occurs during the reading from the DB, an SQLException will be raised

saveInstance

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

Registers the instance of the object passed (that mus always be a DBObject) in a PreparedStatement

Specified by:

saveInstance in interface DBObjectMap

Parameters:

ps - The PreparedStatement on which register the object

field - The field of the PreparedStatement

o - The object to save

Throws:

SQLException - If an error occurs during the writing on the PreparedStatement, an SQLException will be raised

toString

public String toString()

Returns the string representation of the DBObject

Overrides:

toString in class Object

Returns:

The string representation of the DBObject