net.as_development.asdk.db_service.impl

Class PersistenceUnit

java.lang.Object

net.as_development.asdk.db_service.impl.PersistenceUnit

All Implemented Interfaces:

IPersistenceUnit

public class PersistenceUnit
extends Object
implements IPersistenceUnit

knows all informations regarding a persistence unit.

Constructor Summary

Constructors

Constructor and Description
PersistenceUnit()
PersistenceUnit(IPersistenceUnit iSource)

Method Summary

Modifier and Type	Method and Description
void	addEntity(String sEntity) add class name of an entity to these unit.
boolean	getBooleanProperty(String sProperty)
boolean	getBooleanProperty(String sProperty, boolean bDefault)
List<String>	getEntities()
String	getMappFile()
String	getName()
String	getPassword()
Set<String>	getPropertNames()
String	getProperty(String sProperty)
String	getProvider()
String	getUser()
static List<String>	listUnits()
static PersistenceUnit	loadUnit(String sName) load the specified persistence unit from the (hopefully existing) persistence.xml ... create a suitable persistence unit object and return those object.
void	merge(IPersistenceUnit iPU)
void	setMappFile(String sFile)
void	setName(String sName) set name for these persistence unit.
void	setPassword(String sPassword)
void	setProperty(String sProperty, String sValue) set new property for these unit.
void	setProvider(String sProvider) set class name of provider implementation.
void	setUser(String sUser)
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

PersistenceUnit

public PersistenceUnit()

PersistenceUnit

public PersistenceUnit(IPersistenceUnit iSource)
                throws Exception

Throws:

Exception

Method Detail

merge

public void merge(IPersistenceUnit iPU)
           throws Exception

Throws:

Exception

loadUnit

public static PersistenceUnit loadUnit(String sName)
                                throws Exception

load the specified persistence unit from the (hopefully existing) persistence.xml ... create a suitable persistence unit object and return those object.

Parameters:

sName - [IN] name of the persistence unit to be loaded here.

Throws:

Exception - if specified persistence unit does not exists or couldn't be loaded successfully.

listUnits

public static List<String> listUnits()
                              throws Exception

Returns:

a list of all persistence units retrieved from a hopefully found /META-INF/persistence.xml file. Such list wont be null - but can be empty.

Throws:

Exception

setName

public void setName(String sName)
             throws Exception

set name for these persistence unit.

Parameters:

sName - [IN] new name for these unit. Must not be empty or null !

Throws:

Exception - in case unit name is invalid.

getName

public String getName()
               throws Exception

Specified by:

getName in interface IPersistenceUnit

Returns:

current name of these persistence unit.

Throws:

Exception

setProvider

public void setProvider(String sProvider)
                 throws Exception

set class name of provider implementation.

Parameters:

sProvider - class name of provider impl.

Throws:

Exception

getProvider

public String getProvider()
                   throws Exception

Specified by:

getProvider in interface IPersistenceUnit

Returns:

class name of provider implementation.

Throws:

Exception

setMappFile

public void setMappFile(String sFile)
                 throws Exception

Throws:

Exception

getMappFile

public String getMappFile()
                   throws Exception

Throws:

Exception

setUser

public void setUser(String sUser)
             throws Exception

Throws:

Exception

setPassword

public void setPassword(String sPassword)
                 throws Exception

Throws:

Exception

getUser

public String getUser()
               throws Exception

Specified by:

getUser in interface IPersistenceUnit

Throws:

Exception

getPassword

public String getPassword()
                   throws Exception

Specified by:

getPassword in interface IPersistenceUnit

Throws:

Exception

addEntity

public void addEntity(String sEntity)
               throws Exception

add class name of an entity to these unit. Note Duplicate entries will be filtered out. Further invalid entities (empty name) will be silently ignored.

Parameters:

sEntity - class name of a new entity.

Throws:

Exception

getEntities

public List<String> getEntities()
                         throws Exception

Specified by:

getEntities in interface IPersistenceUnit

Returns:

list of all entities registered for these unit. Note returned list wont be NULL ... but it can be empty.

Throws:

Exception

setProperty

public void setProperty(String sProperty,
                        String sValue)
                 throws Exception

set new property for these unit.

Parameters:

sProperty -

sValue -

Throws:

Exception

getProperty

public String getProperty(String sProperty)
                   throws Exception

Specified by:

getProperty in interface IPersistenceUnit

Returns:

value of requested property. Note if property is unknown an empty string will be returned.

Throws:

Exception

getBooleanProperty

public boolean getBooleanProperty(String sProperty)
                           throws Exception

Specified by:

getBooleanProperty in interface IPersistenceUnit

Throws:

Exception

getBooleanProperty

public boolean getBooleanProperty(String sProperty,
                                  boolean bDefault)
                           throws Exception

Throws:

Exception

getPropertNames

public Set<String> getPropertNames()
                            throws Exception

Specified by:

getPropertNames in interface IPersistenceUnit

Returns:

set of all property names. Note set wont be null ... but can be empty.

Throws:

Exception

toString

public String toString()

Overrides:

toString in class Object