org.jpox.enhancer
Class AbstractClassEnhancer

java.lang.Object
  org.jpox.enhancer.AbstractClassEnhancer

All Implemented Interfaces:

ClassEnhancer

Direct Known Subclasses:

BCELClassEnhancer

public abstract class AbstractClassEnhancer
extends java.lang.Object
implements ClassEnhancer

Abstract representation of a class enhancer. To be extended by implementing enhancers.

Version:

$Revision: 1.3.2.1 $

Field Summary

java.lang.String	className Class name of the class being enhanced
protected org.jpox.ClassLoaderResolver	clr Class Loader Resolver to use for any loading issues.
protected org.jpox.metadata.ClassMetaData	cmd MetaData for the class being enhanced.
protected static org.jpox.util.Localiser	LOCALISER Message resource
protected boolean	update Flag specifying if the class needs updating.

Fields inherited from interface org.jpox.enhancer.ClassEnhancer

CN_BitSet, CN_ByteIdentity, CN_CharIdentity, CN_Class, CN_ClassCastException, CN_Detachable, CN_Flag, CN_IllegalArgumentException, CN_IllegalStateException, CN_IntIdentity, CN_JDODetachedFieldAccessException, CN_JDOFatalInternalException, CN_JDOHelper, CN_JDOImplHelper, CN_LongIdentity, CN_ObjectIdentity, CN_ObjectIdFieldConsumer, CN_ObjectIdFieldSupplier, CN_PersistenceCapable, CN_PersistenceManager, CN_ShortIdentity, CN_StateManager, CN_StringIdentity, FN_FieldFlags, FN_FieldNames, FN_FieldTypes, FN_Flag, FN_JdoDetachedState, FN_JdoLoadedFields, FN_JdoModifiedFields, FN_JdoObjectId, FN_JdoParentFieldCount, FN_JdoVersion, FN_PersistenceCapableSuperclass, FN_serialVersionUID, FN_StateManager, MN_FieldFlagsInitMethod, MN_FieldNamesInitMethod, MN_FieldTypesInitMethod, MN_JdoGetPersistenceManager, MN_JdoIsDetached, MN_JdoIsDetachedInternal, MN_jdoLoadClass, MN_JdoManagingFieldCountMethod, MN_JdoParentManagingFieldCountMethod, MN_JdoPreSerialize, MN_JdoSuperClone, MN_PersistenceCapableSuperclassInitMethod

Constructor Summary

AbstractClassEnhancer(org.jpox.metadata.ClassMetaData cmd, org.jpox.ClassLoaderResolver clr)
Constructor.

Method Summary

org.jpox.ClassLoaderResolver	getClassLoaderResolver() Accessor for the ClassLoaderResolver
protected boolean	isPersistenceCapable(java.lang.String className) Check if the class is PersistenceCapable or is going to be enhanced based on the metadata
protected boolean	requiresDetachable() Convenience method for whether this class needs to implement Detachable

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.jpox.enhancer.ClassEnhancer

checkEnhanced, enhance, getBytes, store, update, verify

Field Detail

LOCALISER

protected static org.jpox.util.Localiser LOCALISER

Message resource

clr

protected final org.jpox.ClassLoaderResolver clr

Class Loader Resolver to use for any loading issues.

cmd

protected final org.jpox.metadata.ClassMetaData cmd

MetaData for the class being enhanced.

className

public final java.lang.String className

Class name of the class being enhanced

update

protected boolean update

Flag specifying if the class needs updating.

Constructor Detail

AbstractClassEnhancer

public AbstractClassEnhancer(org.jpox.metadata.ClassMetaData cmd,
                             org.jpox.ClassLoaderResolver clr)

Constructor.

Parameters:

cmd - MetaData for the class to be enhanced

clr - ClassLoader resolver

Method Detail

getClassLoaderResolver

public org.jpox.ClassLoaderResolver getClassLoaderResolver()

Accessor for the ClassLoaderResolver

Specified by:

getClassLoaderResolver in interface ClassEnhancer

Returns:

ClassLoader resolver

requiresDetachable

protected boolean requiresDetachable()

Convenience method for whether this class needs to implement Detachable

Returns:

Whether we need to implement the Detachable interface

isPersistenceCapable

protected boolean isPersistenceCapable(java.lang.String className)

Check if the class is PersistenceCapable or is going to be enhanced based on the metadata

Parameters:

className - the class name

Returns:

true if PersistenceCapable