org.hibernate.bytecode.instrumentation.internal

Class FieldInterceptionHelper

java.lang.Object

org.hibernate.bytecode.instrumentation.internal.FieldInterceptionHelper

public class FieldInterceptionHelper
extends Object

Helper class for dealing with enhanced entity classes. These operations are expensive. They are only meant to be used when code does not have access to a SessionFactory (namely from the instrumentation tasks). When code has access to a SessionFactory, EntityInstrumentationMetadata should be used instead to query the instrumentation state. EntityInstrumentationMetadata is accessed from the EntityPersister via the EntityPersister.getInstrumentationMetadata() method.

Author:

Steve Ebersole

Method Summary

Modifier and Type	Method and Description
static FieldInterceptor	extractFieldInterceptor(Object object) Assuming the given object is an enhanced entity, extract and return its interceptor.
static FieldInterceptor	injectFieldInterceptor(Object entity, String entityName, Set uninitializedFieldNames, SessionImplementor session) Assuming the given object is an enhanced entity, inject a field interceptor.
static boolean	isInstrumented(Class entityClass) Utility to check to see if a given entity class is instrumented.
static boolean	isInstrumented(Object object) Utility to check to see if a given object is an instance of an instrumented class.

Methods inherited from class java.lang.Object

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

Method Detail

isInstrumented

public static boolean isInstrumented(Class entityClass)

Utility to check to see if a given entity class is instrumented.

Parameters:

entityClass - The entity class to check

Returns:

true if it has been instrumented; false otherwise

isInstrumented

public static boolean isInstrumented(Object object)

Utility to check to see if a given object is an instance of an instrumented class. If the instance is null, the check returns false

Parameters:

object - The object to check

Returns:

true if it has been instrumented; false otherwise

extractFieldInterceptor

public static FieldInterceptor extractFieldInterceptor(Object object)

Assuming the given object is an enhanced entity, extract and return its interceptor. Will return null if object is null, or if the object was deemed to not be instrumented

Parameters:

object - The object from which to extract the interceptor

Returns:

The extracted interceptor, or null

injectFieldInterceptor

public static FieldInterceptor injectFieldInterceptor(Object entity,
                                                      String entityName,
                                                      Set uninitializedFieldNames,
                                                      SessionImplementor session)

Assuming the given object is an enhanced entity, inject a field interceptor.

Parameters:

entity - The entity instance

entityName - The entity name

uninitializedFieldNames - The names of any uninitialized fields

session - The session

Returns:

The injected interceptor