com.cloupia.fw.objstore

Class ObjStoreHelper

java.lang.Object

com.cloupia.fw.objstore.ObjStoreHelper

public class ObjStoreHelper
extends java.lang.Object

This is a helper class for storing and retrieving data from database using jdo.

Constructor Summary

Constructors

Constructor and Description
ObjStoreHelper()

Method Summary

Modifier and Type	Method and Description
static javax.jdo.PersistenceManager	getPersistenceManager() Getting the persistence manager of the current environment.
static javax.jdo.PersistenceManagerFactory	getPmf() Returns an instance of the persistenceManagerFactory from the PersistenceManagerSharedPool
static long	getSequence(java.lang.String seqName) Returns the next sequence number for the given Sequence
static <T> ObjStore<T>	getStore(java.lang.Class<T> classOfT) Get store for jdo class that is persistence enabled.
static java.lang.String	getTruncatedTableName(java.lang.String simpleTableName)
static void	init() Initialize with default properties
static void	init(java.util.Properties props) The initiation method called at the startup of the system
static void	init(java.lang.String dbUrl, java.lang.String driverClassName, java.lang.String login, java.lang.String password) Another way to initiate this class.
static void	init(java.lang.String dbUrl, java.lang.String driverClassName, java.lang.String login, java.lang.String password, java.lang.String xmlMetaExt, boolean allowXML) Initialization is done based on the parameters passed
static java.lang.String	initAndCreateDB(java.lang.String dbUrlTemplate, java.lang.String dbName, java.lang.String driverClassName, java.lang.String adminUrl) Initiate the DB Connection and also create the basic DB
static boolean	isDatanucleusField(java.lang.String fieldName) Identify if the field belongs to DataNucleus.
static void	main(java.lang.String[] args)

Methods inherited from class java.lang.Object

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

Constructor Detail

ObjStoreHelper

public ObjStoreHelper()

Method Detail

init

public static void init(java.util.Properties props)
                 throws java.lang.Exception

The initiation method called at the startup of the system

Parameters:

props - - the Properties object to set

Throws:

java.lang.Exception

init

public static void init(java.lang.String dbUrl,
                        java.lang.String driverClassName,
                        java.lang.String login,
                        java.lang.String password,
                        java.lang.String xmlMetaExt,
                        boolean allowXML)
                 throws java.lang.Exception

Initialization is done based on the parameters passed

Parameters:

dbUrl - - the connection URL

driverClassName - - the connectiondrivername

login - - the connection user name

password - - the connection password

xmlMetaExt - - the xml meta data

allowXML - - boolean allowXml

Throws:

java.lang.Exception

getPmf

public static javax.jdo.PersistenceManagerFactory getPmf()

Returns an instance of the persistenceManagerFactory from the PersistenceManagerSharedPool

Returns:

instance of PersistenceManagerFactory

getTruncatedTableName

public static java.lang.String getTruncatedTableName(java.lang.String simpleTableName)

Parameters:

simpleTableName - - simple Table Name.

Returns:

the truncated table name

init

public static void init(java.lang.String dbUrl,
                        java.lang.String driverClassName,
                        java.lang.String login,
                        java.lang.String password)
                 throws java.lang.Exception

Another way to initiate this class. Originally this is been added to test the Oracle testing

Parameters:

dbUrl - - the Connection URL

driverClassName - - the ConnectionDriver name

login - - the Connection User Name

password - - the Connection Password

Throws:

java.lang.Exception

initAndCreateDB

public static java.lang.String initAndCreateDB(java.lang.String dbUrlTemplate,
                                               java.lang.String dbName,
                                               java.lang.String driverClassName,
                                               java.lang.String adminUrl)
                                        throws java.lang.Exception

Initiate the DB Connection and also create the basic DB

Parameters:

dbUrlTemplate - - the Connection URL

dbName - - the database name

driverClassName - - the connection drvier class

adminUrl - - the admin URL

Returns:

- the dbURL

Throws:

java.lang.Exception

init

public static void init()
                 throws java.lang.Exception

Initialize with default properties

Throws:

java.lang.Exception

getPersistenceManager

public static javax.jdo.PersistenceManager getPersistenceManager()

Getting the persistence manager of the current environment.

Returns:

Persistence manager if it is initialized. Otherwise throws an exception.

getStore

public static <T> ObjStore<T> getStore(java.lang.Class<T> classOfT)

Get store for jdo class that is persistence enabled.

Parameters:

classOfT - Class Name of the jdo persistable object

Returns:

Store for the parameter class. Queries and Update operations can be done through the store.

getSequence

public static long getSequence(java.lang.String seqName)
                        throws java.lang.Exception

Returns the next sequence number for the given Sequence

Parameters:

seqName -

Returns:

Throws:

java.lang.Exception

isDatanucleusField

public static boolean isDatanucleusField(java.lang.String fieldName)

Identify if the field belongs to DataNucleus.

Parameters:

Field -

Returns:

boolean

main

public static void main(java.lang.String[] args)
                 throws java.lang.Exception

Throws:

java.lang.Exception