net.as_development.asdk.db_service.impl

Class PersistenceXml

java.lang.Object

net.as_development.asdk.db_service.impl.PersistenceXml

public class PersistenceXml
extends Object

provides read access to persistence.xml which must be part of any package dealing with JPA.

Field Summary

Fields

Modifier and Type	Field and Description
static String	PERSISTENCE_XML_LOCATION

Constructor Summary

Constructors

Constructor and Description
PersistenceXml()

Method Summary

Modifier and Type	Method and Description
static String	generateXml(PersistenceUnit aUnit)
static List<String>	getListOfUnits()
static void	readXml(PersistenceUnit aUnit) read persistence.xml into given set of properties.

Methods inherited from class java.lang.Object

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

Field Detail

PERSISTENCE_XML_LOCATION

public static final String PERSISTENCE_XML_LOCATION

See Also:

Constant Field Values

Constructor Detail

PersistenceXml

public PersistenceXml()

Method Detail

getListOfUnits

public static List<String> getListOfUnits()
                                   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

readXml

public static void readXml(PersistenceUnit aUnit)
                    throws Exception

read persistence.xml into given set of properties. Note Set of given properties wont be cleaned up before. But existing properties will be overriden.

Parameters:

aUnit - [IN] name of persistence unit where all config settings should be read for.

Throws:

Exception - in case configuration seems to be damaged but no exception if config will be empty.

generateXml

public static String generateXml(PersistenceUnit aUnit)
                          throws Exception

Parameters:

aUnit - persistence unit to be transformed to Xml.

Returns:

Xml representation of given persistence unit.

Throws:

Exception