Package org.hibernate.bytecode.enhance.spi.interceptor

Class LazyAttributeLoadingInterceptor

java.lang.Object

org.hibernate.bytecode.enhance.spi.interceptor.AbstractInterceptor

org.hibernate.bytecode.enhance.spi.interceptor.LazyAttributeLoadingInterceptor

All Implemented Interfaces:

BytecodeLazyAttributeInterceptor, SessionAssociableInterceptor, LazyPropertyInitializer.InterceptorImplementor, PersistentAttributeInterceptor

public class LazyAttributeLoadingInterceptor
extends AbstractInterceptor
implements BytecodeLazyAttributeInterceptor

Interceptor that loads attributes lazily

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	LazyAttributeLoadingInterceptor.EntityRelatedState	This is an helper object to group all state which relates to a particular entity type, and which is needed for this interceptor.

Constructor Summary

Constructors

Constructor	Description
LazyAttributeLoadingInterceptor(LazyAttributeLoadingInterceptor.EntityRelatedState entityMeta, Object identifier, SharedSessionContractImplementor session)

Method Summary

Modifier and Type	Method	Description
void	addLazyFieldByGraph(String fieldName)
void	attributeInitialized(String name)	Callback from the enhanced class that an attribute has been read or written
void	clearInitializedLazyFields()
Object	fetchAttribute(Object target, String attributeName)	Fetches the lazy attribute.
String	getEntityName()	The name of the entity this interceptor is meant to intercept
Object	getIdentifier()	The id of the entity instance this interceptor is associated with
Set<String>	getInitializedLazyAttributeNames()	The names of all lazy attributes which have been initialized
protected Object	handleRead(Object target, String attributeName, Object value)	Handle the case of reading an attribute.
protected Object	handleWrite(Object target, String attributeName, Object oldValue, Object newValue)	Handle the case of writing an attribute.
boolean	hasAnyUninitializedAttributes()
boolean	isAttributeLoaded(String fieldName)	Callback from the enhanced class that an attribute has been loaded
protected Object	loadAttribute(Object target, String attributeName)
String	toString()

Methods inherited from class org.hibernate.bytecode.enhance.spi.interceptor.AbstractInterceptor

allowLoadOutsideTransaction, getLinkedSession, getSessionFactoryUuid, readBoolean, readByte, readChar, readDouble, readFloat, readInt, readLong, readObject, readShort, setSession, unsetSession, writeBoolean, writeByte, writeChar, writeDouble, writeFloat, writeInt, writeLong, writeObject, writeShort

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.hibernate.engine.spi.PersistentAttributeInterceptor

readBoolean, readByte, readChar, readDouble, readFloat, readInt, readLong, readObject, readShort, writeBoolean, writeByte, writeChar, writeDouble, writeFloat, writeInt, writeLong, writeObject, writeShort

Methods inherited from interface org.hibernate.bytecode.enhance.spi.interceptor.SessionAssociableInterceptor

allowLoadOutsideTransaction, getLinkedSession, getSessionFactoryUuid, setSession, unsetSession

Constructor Details

LazyAttributeLoadingInterceptor

public LazyAttributeLoadingInterceptor(LazyAttributeLoadingInterceptor.EntityRelatedState entityMeta,
 Object identifier,
 SharedSessionContractImplementor session)

Method Details

getEntityName

public String getEntityName()

Description copied from interface: BytecodeLazyAttributeInterceptor

The name of the entity this interceptor is meant to intercept

Specified by:

getEntityName in interface BytecodeLazyAttributeInterceptor

getIdentifier

public Object getIdentifier()

Description copied from interface: BytecodeLazyAttributeInterceptor

The id of the entity instance this interceptor is associated with

Specified by:

getIdentifier in interface BytecodeLazyAttributeInterceptor

handleRead

protected Object handleRead(Object target,
 String attributeName,
 Object value)

Description copied from class: AbstractInterceptor

Handle the case of reading an attribute. The result is what is returned to the caller

Specified by:

handleRead in class AbstractInterceptor

handleWrite

protected Object handleWrite(Object target,
 String attributeName,
 Object oldValue,
 Object newValue)

Description copied from class: AbstractInterceptor

Handle the case of writing an attribute. The result is what is set as the entity state

Specified by:

handleWrite in class AbstractInterceptor

fetchAttribute

public Object fetchAttribute(Object target,
 String attributeName)

Fetches the lazy attribute. The attribute does not get associated with the entity. (To be used by hibernate methods)

loadAttribute

protected Object loadAttribute(Object target,
 String attributeName)

isAttributeLoaded

public boolean isAttributeLoaded(String fieldName)

Description copied from interface: PersistentAttributeInterceptor

Callback from the enhanced class that an attribute has been loaded

Specified by:

isAttributeLoaded in interface BytecodeLazyAttributeInterceptor

Specified by:

isAttributeLoaded in interface PersistentAttributeInterceptor

Parameters:

fieldName -

Returns:

true id the attribute is loaded false otherwise

hasAnyUninitializedAttributes

public boolean hasAnyUninitializedAttributes()

Specified by:

hasAnyUninitializedAttributes in interface BytecodeLazyAttributeInterceptor

toString

public String toString()

Overrides:

toString in class Object

attributeInitialized

public void attributeInitialized(String name)

Description copied from interface: BytecodeLazyAttributeInterceptor

Callback from the enhanced class that an attribute has been read or written

Specified by:

attributeInitialized in interface BytecodeLazyAttributeInterceptor

Specified by:

attributeInitialized in interface LazyPropertyInitializer.InterceptorImplementor

Specified by:

attributeInitialized in interface PersistentAttributeInterceptor

getInitializedLazyAttributeNames

public Set<String> getInitializedLazyAttributeNames()

Description copied from interface: BytecodeLazyAttributeInterceptor

The names of all lazy attributes which have been initialized

Specified by:

getInitializedLazyAttributeNames in interface BytecodeLazyAttributeInterceptor

Specified by:

getInitializedLazyAttributeNames in interface LazyPropertyInitializer.InterceptorImplementor

Specified by:

getInitializedLazyAttributeNames in interface PersistentAttributeInterceptor

addLazyFieldByGraph

public void addLazyFieldByGraph(String fieldName)

clearInitializedLazyFields

public void clearInitializedLazyFields()