org.eclipse.persistence.internal.jpa.deployment

Class JPAInitializer

java.lang.Object

org.eclipse.persistence.internal.jpa.deployment.JPAInitializer

Direct Known Subclasses:

JavaSECMPInitializer

public abstract class JPAInitializer
extends java.lang.Object

Base class for all JPA initialization classes. This is an abstract class that provides the framework for JPA initialization (finding and initializing persistence units). Subclasses implement the abstract methods to provide customized functionality

Author:

tware

See Also:

JavaSECMPInitializer

Field Summary

Fields

Modifier and Type	Field and Description
protected java.util.Map<java.lang.String,EntityManagerSetupImpl>	initialEmSetupImpls
protected java.lang.ClassLoader	initializationClassloader
protected static java.util.Map<java.lang.ClassLoader,JPAInitializer>	initializers
protected java.util.Map<java.lang.String,SEPersistenceUnitInfo>	initialPuInfos
protected boolean	shouldCreateInternalLoader

Constructor Summary

Constructors

Constructor and Description
JPAInitializer()

Method Summary

Modifier and Type	Method and Description
EntityManagerSetupImpl	callPredeploy(SEPersistenceUnitInfo persistenceUnitInfo, java.util.Map m, java.lang.String persistenceUnitUniqueName, java.lang.String sessionName) predeploy (with deploy) is one of the two steps required in deployment of entities This method will prepare to call predeploy, call it and finally register the transformer returned to be used for weaving.
abstract void	checkWeaving(java.util.Map properties) Check whether weaving is possible and update the properties and variable as appropriate
protected abstract java.lang.ClassLoader	createTempLoader(java.util.Collection col) Create a temporary class loader that can be used to inspect classes and then thrown away.
protected abstract java.lang.ClassLoader	createTempLoader(java.util.Collection col, boolean shouldOverrideLoadClassForCollectionMembers)
java.lang.String	createUniquePersistenceUnitName(PersistenceUnitInfo puInfo) In case persistence unit is not uniquely defined by name this method is called to generate a unique name.
EntityManagerSetupImpl	extractInitialEmSetupImpl(java.lang.String puName)
SEPersistenceUnitInfo	findPersistenceUnitInfo(java.lang.String puName, java.util.Map m) Find PersistenceUnitInfo corresponding to the persistence unit name.
protected SEPersistenceUnitInfo	findPersistenceUnitInfoInArchive(java.lang.String puName, Archive archive, java.util.Map m) Find PersistenceUnitInfo corresponding to the persistence unit name in the archive.
protected SEPersistenceUnitInfo	findPersistenceUnitInfoInArchives(java.lang.String puName, java.util.Map m) Find PersistenceUnitInfo corresponding to the persistence unit name.
java.lang.ClassLoader	getInitializationClassLoader()
void	initialize(java.util.Map m) This method initializes the container.
static void	initializeTopLinkLoggingFile() Initialize the logging file if it is specified by the system property.
protected void	initPersistenceUnits(Archive archive, java.util.Map m) Initialize all persistence units found on initializationClassLoader.
boolean	isPersistenceProviderSupported(java.lang.String providerClassName) Returns whether the given persistence provider class is supported by this implementation
boolean	isPersistenceUnitUniquelyDefinedByName() Indicates whether puName uniquely defines the persistence unit.
protected boolean	keepAllPredeployedPersistenceUnits() Indicates whether initialPuInfos and initialEmSetupImpls are used.
protected java.util.Set	loadEntityClasses(java.util.Collection entityNames, java.lang.ClassLoader classLoader) Create a list of java.lang.Class that contains the classes of all the entities that we will be deploying.
abstract void	registerTransformer(ClassTransformer transformer, PersistenceUnitInfo persistenceUnitInfo, java.util.Map properties) Register a transformer.

Methods inherited from class java.lang.Object

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

Field Detail

shouldCreateInternalLoader

protected boolean shouldCreateInternalLoader

initializationClassloader

protected java.lang.ClassLoader initializationClassloader

initialPuInfos

protected java.util.Map<java.lang.String,SEPersistenceUnitInfo> initialPuInfos

initialEmSetupImpls

protected java.util.Map<java.lang.String,EntityManagerSetupImpl> initialEmSetupImpls

initializers

protected static java.util.Map<java.lang.ClassLoader,JPAInitializer> initializers

Constructor Detail

JPAInitializer

public JPAInitializer()

Method Detail

initializeTopLinkLoggingFile

public static void initializeTopLinkLoggingFile()

Initialize the logging file if it is specified by the system property.

callPredeploy

public EntityManagerSetupImpl callPredeploy(SEPersistenceUnitInfo persistenceUnitInfo,
                                            java.util.Map m,
                                            java.lang.String persistenceUnitUniqueName,
                                            java.lang.String sessionName)

predeploy (with deploy) is one of the two steps required in deployment of entities This method will prepare to call predeploy, call it and finally register the transformer returned to be used for weaving.

checkWeaving

public abstract void checkWeaving(java.util.Map properties)

Check whether weaving is possible and update the properties and variable as appropriate

Parameters:

properties - The list of properties to check for weaving and update if weaving is not needed

createTempLoader

protected abstract java.lang.ClassLoader createTempLoader(java.util.Collection col)

Create a temporary class loader that can be used to inspect classes and then thrown away. This allows classes to be introspected prior to loading them with application's main class loader enabling weaving.

createTempLoader

protected abstract java.lang.ClassLoader createTempLoader(java.util.Collection col,
                                                          boolean shouldOverrideLoadClassForCollectionMembers)

findPersistenceUnitInfo

public SEPersistenceUnitInfo findPersistenceUnitInfo(java.lang.String puName,
                                                     java.util.Map m)

Find PersistenceUnitInfo corresponding to the persistence unit name. Returns null if either persistence unit either not found or provider is not supported.

findPersistenceUnitInfoInArchives

protected SEPersistenceUnitInfo findPersistenceUnitInfoInArchives(java.lang.String puName,
                                                                  java.util.Map m)

Find PersistenceUnitInfo corresponding to the persistence unit name. Returns null if either persistence unit either not found or provider is not supported.

findPersistenceUnitInfoInArchive

protected SEPersistenceUnitInfo findPersistenceUnitInfoInArchive(java.lang.String puName,
                                                                 Archive archive,
                                                                 java.util.Map m)

Find PersistenceUnitInfo corresponding to the persistence unit name in the archive. Returns null if either persistence unit either not found or provider is not supported.

isPersistenceProviderSupported

public boolean isPersistenceProviderSupported(java.lang.String providerClassName)

Returns whether the given persistence provider class is supported by this implementation

Parameters:

providerClassName -

Returns:

loadEntityClasses

protected java.util.Set loadEntityClasses(java.util.Collection entityNames,
                                          java.lang.ClassLoader classLoader)

Create a list of java.lang.Class that contains the classes of all the entities that we will be deploying.

registerTransformer

public abstract void registerTransformer(ClassTransformer transformer,
                                         PersistenceUnitInfo persistenceUnitInfo,
                                         java.util.Map properties)

Register a transformer. This method should be overridden to provide the appropriate transformer registration for the environment

Parameters:

transformer -

persistenceUnitInfo -

isPersistenceUnitUniquelyDefinedByName

public boolean isPersistenceUnitUniquelyDefinedByName()

Indicates whether puName uniquely defines the persistence unit.

createUniquePersistenceUnitName

public java.lang.String createUniquePersistenceUnitName(PersistenceUnitInfo puInfo)

In case persistence unit is not uniquely defined by name this method is called to generate a unique name.

extractInitialEmSetupImpl

public EntityManagerSetupImpl extractInitialEmSetupImpl(java.lang.String puName)

initialize

public void initialize(java.util.Map m)

This method initializes the container. Essentially, it will try to load the class that contains the list of entities and reflectively call the method that contains that list. It will then initialize the container with that list.

initPersistenceUnits

protected void initPersistenceUnits(Archive archive,
                                    java.util.Map m)

Initialize all persistence units found on initializationClassLoader. Initialization is a two phase process. First the predeploy process builds the metadata and creates any required transformers. Second the deploy process creates an EclipseLink session based on that metadata.

keepAllPredeployedPersistenceUnits

protected boolean keepAllPredeployedPersistenceUnits()

Indicates whether initialPuInfos and initialEmSetupImpls are used.

getInitializationClassLoader

public java.lang.ClassLoader getInitializationClassLoader()