com.impetus.kundera.proxy.cglib

Class CglibLazyInitializer

java.lang.Object

com.impetus.kundera.proxy.cglib.CglibLazyInitializer

All Implemented Interfaces:

LazyInitializer, net.sf.cglib.proxy.Callback, net.sf.cglib.proxy.InvocationHandler

public final class CglibLazyInitializer
extends Object
implements LazyInitializer, net.sf.cglib.proxy.InvocationHandler

A LazyInitializer implemented using the CGLIB bytecode generation library.

Field Summary

Fields

Modifier and Type	Field and Description
private boolean	constructed The constructed.
private String	entityName The entity name.
private static net.sf.cglib.proxy.CallbackFilter	FINALIZE_FILTER The Constant FINALIZE_FILTER.
protected Method	getIdentifierMethod The get identifier method.
private Object	id The id.
private boolean	initialized The initialized.
private Class<?>[]	interfaces The interfaces.
private static org.slf4j.Logger	log The Constant log.
private Object	owner The target.
private PersistenceDelegator	persistenceDelegator The persistenceDelegator.
protected Class<?>	persistentClass The persistent class.
protected Method	setIdentifierMethod The set identifier method.
private Object	target The target.
private boolean	unwrap The unwrap.

Constructor Summary

Constructors

Modifier	Constructor and Description
private	CglibLazyInitializer(String entityName, Class<?> persistentClass, Class<?>[] interfaces, Object id, Method getIdentifierMethod, Method setIdentifierMethod, PersistenceDelegator pd) Instantiates a new cglib lazy initializer.

Method Summary

Methods

Modifier and Type	Method and Description
String	getEntityName() Gets the entity name.
Object	getIdentifier() Retrieve the identifier value for the enity our owning proxy represents.
Object	getImplementation() Return the underlying persistent object, initializing if necessary.
Object	getOwner()
PersistenceDelegator	getPersistenceDelegator() Get the session to which this proxy is associated, or null if it is not attached.
Class<?>	getPersistentClass() Get the actual class of the entity.
static KunderaProxy	getProxy(String entityName, Class<?> persistentClass, Class<?>[] interfaces, Method getIdentifierMethod, Method setIdentifierMethod, Object id, PersistenceDelegator pd) Gets the proxy.
static Class	getProxyFactory(Class persistentClass, Class[] interfaces) Gets the proxy factory.
private static KunderaProxy	getProxyInstance(Class factory, CglibLazyInitializer instance) Gets the proxy instance.
protected Object	getTarget() Getter for property 'target'.
void	initialize() Initialize.
Object	invoke(Object proxy, Method method, Object[] args)
boolean	isUninitialized() Checks if is uninitialized.
boolean	isUnwrap() Checks if is unwrap.
void	setIdentifier(Object id) Set the identifier value for the enity our owning proxy represents.
void	setImplementation(Object paramObject)
void	setInitialized(boolean initialized)
void	setOwner(Object owner)
void	setPersistenceDelegator(PersistenceDelegator persistenceDelegator)
void	setUnwrap(boolean unwrap) Sets the unwrap.
void	unsetPersistenceDelegator() Unset this initializer's reference to session.

Methods inherited from class java.lang.Object

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

Field Detail

log

private static final org.slf4j.Logger log

The Constant log.

entityName

private String entityName

The entity name.

id

private Object id

The id.

owner

private Object owner

The target.

target

private Object target

The target.

initialized

private boolean initialized

The initialized.

unwrap

private boolean unwrap

The unwrap.

persistentClass

protected Class<?> persistentClass

The persistent class.

getIdentifierMethod

protected Method getIdentifierMethod

The get identifier method.

setIdentifierMethod

protected Method setIdentifierMethod

The set identifier method.

interfaces

private Class<?>[] interfaces

The interfaces.

constructed

private boolean constructed

The constructed.

persistenceDelegator

private transient PersistenceDelegator persistenceDelegator

The persistenceDelegator.

FINALIZE_FILTER

private static final net.sf.cglib.proxy.CallbackFilter FINALIZE_FILTER

The Constant FINALIZE_FILTER.

Constructor Detail

CglibLazyInitializer

private CglibLazyInitializer(String entityName,
                    Class<?> persistentClass,
                    Class<?>[] interfaces,
                    Object id,
                    Method getIdentifierMethod,
                    Method setIdentifierMethod,
                    PersistenceDelegator pd)

Instantiates a new cglib lazy initializer.

Parameters:

entityName - the entity name

persistentClass - the persistent class

interfaces - the interfaces

id - the id

getIdentifierMethod - the get identifier method

setIdentifierMethod - the set identifier method

persistenceDelegator - the persistence delegator

Method Detail

getProxy

public static KunderaProxy getProxy(String entityName,
                    Class<?> persistentClass,
                    Class<?>[] interfaces,
                    Method getIdentifierMethod,
                    Method setIdentifierMethod,
                    Object id,
                    PersistenceDelegator pd)
                             throws javax.persistence.PersistenceException

Gets the proxy.

Parameters:

entityName - the entity name

persistentClass - the persistent class

interfaces - the interfaces

getIdentifierMethod - the get identifier method

setIdentifierMethod - the set identifier method

id - the id

persistenceDelegator - the persistence delegator

Returns:

the proxy

Throws:

javax.persistence.PersistenceException - the persistence exception

getProxyInstance

private static KunderaProxy getProxyInstance(Class factory,
                            CglibLazyInitializer instance)

Gets the proxy instance.

Parameters:

factory - the factory

instance - the instance

Returns:

the proxy instance

Throws:

InstantiationException - the instantiation exception

IllegalAccessException - the illegal access exception

getProxyFactory

public static Class getProxyFactory(Class persistentClass,
                    Class[] interfaces)
                             throws javax.persistence.PersistenceException

Gets the proxy factory.

Parameters:

persistentClass - the persistent class

interfaces - the interfaces

Returns:

the proxy factory

Throws:

javax.persistence.PersistenceException - the persistence exception

invoke

public Object invoke(Object proxy,
            Method method,
            Object[] args)
              throws Throwable

Specified by:

invoke in interface net.sf.cglib.proxy.InvocationHandler

Throws:

Throwable

getPersistentClass

public final Class<?> getPersistentClass()

Description copied from interface: LazyInitializer

Get the actual class of the entity. Generally, LazyInitializer.getEntityName() should be used instead.

Specified by:

getPersistentClass in interface LazyInitializer

Returns:

The actual entity class.

getEntityName

public final String getEntityName()

Gets the entity name.

Specified by:

getEntityName in interface LazyInitializer

Returns:

the entity name The entity-name.

getIdentifier

public Object getIdentifier()

Description copied from interface: LazyInitializer

Retrieve the identifier value for the enity our owning proxy represents.

Specified by:

getIdentifier in interface LazyInitializer

Returns:

the id

setIdentifier

public void setIdentifier(Object id)

Description copied from interface: LazyInitializer

Set the identifier value for the enity our owning proxy represents.

Specified by:

setIdentifier in interface LazyInitializer

Parameters:

id - the id to set

isUninitialized

public final boolean isUninitialized()

Checks if is uninitialized.

Specified by:

isUninitialized in interface LazyInitializer

Returns:

true, if is uninitialized True if uninitialized; false otherwise.

setInitialized

public void setInitialized(boolean initialized)

Specified by:

setInitialized in interface LazyInitializer

Parameters:

initialized - the initialized to set

initialize

public final void initialize()
                      throws javax.persistence.PersistenceException

Initialize.

Specified by:

initialize in interface LazyInitializer

Throws:

javax.persistence.PersistenceException - the persistence exception the persistence exception

getImplementation

public final Object getImplementation()

Return the underlying persistent object, initializing if necessary.

Specified by:

getImplementation in interface LazyInitializer

Returns:

the implementation

getTarget

protected final Object getTarget()

Getter for property 'target'.

Same as getImplementation() except that this method will not force initialization.

Returns:

Value for property 'target'.

isUnwrap

public boolean isUnwrap()

Checks if is unwrap.

Specified by:

isUnwrap in interface LazyInitializer

Returns:

true, if is unwrap true, if is unwrap

setUnwrap

public void setUnwrap(boolean unwrap)

Sets the unwrap.

Specified by:

setUnwrap in interface LazyInitializer

Parameters:

unwrap - the new unwrap the new unwrap

setImplementation

public void setImplementation(Object paramObject)

Specified by:

setImplementation in interface LazyInitializer

getPersistenceDelegator

public PersistenceDelegator getPersistenceDelegator()

Description copied from interface: LazyInitializer

Get the session to which this proxy is associated, or null if it is not attached.

Specified by:

getPersistenceDelegator in interface LazyInitializer

Returns:

the persistenceDelegator

setPersistenceDelegator

public void setPersistenceDelegator(PersistenceDelegator persistenceDelegator)

Parameters:

persistenceDelegator - the persistenceDelegator to set

unsetPersistenceDelegator

public void unsetPersistenceDelegator()

Description copied from interface: LazyInitializer

Unset this initializer's reference to session. It is assumed that the caller is also taking care or cleaning up the owning proxy's reference in the persistence context.

Specified by:

unsetPersistenceDelegator in interface LazyInitializer

setOwner

public void setOwner(Object owner)
              throws javax.persistence.PersistenceException

Specified by:

setOwner in interface LazyInitializer

Throws:

javax.persistence.PersistenceException

getOwner

public Object getOwner()
                throws javax.persistence.PersistenceException

Specified by:

getOwner in interface LazyInitializer

Throws:

javax.persistence.PersistenceException