org.eclipse.persistence.internal.jpa.weaving

Class PersistenceWeaver

java.lang.Object

org.eclipse.persistence.internal.jpa.weaving.PersistenceWeaver

All Implemented Interfaces:

jakarta.persistence.spi.ClassTransformer

public class PersistenceWeaver
extends Object
implements jakarta.persistence.spi.ClassTransformer

INTERNAL: This class performs dynamic byte code weaving: for each attribute mapped with One To One mapping with Basic Indirection it substitutes the original attribute's type for ValueHolderInterface.

Field Summary

Fields

Modifier and Type	Field and Description
protected Map<String,ClassDetails>	classDetailsMap Class name in JVM '/' format to ClassDetails map.

Constructor Summary

Constructors

Constructor and Description
PersistenceWeaver(Map<String,ClassDetails> classDetailsMap) INTERNAL: Creates an instance of dynamic byte code weaver.
PersistenceWeaver(Session session, Map<String,ClassDetails> classDetailsMap) Deprecated. Session instance is no longer needed for logging. Will be removed in 2.8.

Method Summary

Modifier and Type	Method and Description
void	clear() INTERNAL: Allow the weaver to be clear to release its referenced memory.
Map<String,ClassDetails>	getClassDetailsMap() INTERNAL: Get Class name in JVM '/' format to ClassDetails map.
protected static String	getShortName(String name) INTERNAL: Returns an unqualified class name from the specified class name.
byte[]	transform(ClassLoader loader, String className, Class classBeingRedefined, ProtectionDomain protectionDomain, byte[] classfileBuffer) INTERNAL: Perform dynamic byte code weaving of class.

Methods inherited from class java.lang.Object

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

Field Detail

classDetailsMap

protected Map<String,ClassDetails> classDetailsMap

Class name in JVM '/' format to ClassDetails map.

Constructor Detail

PersistenceWeaver

@Deprecated
public PersistenceWeaver(Session session,
                                     Map<String,ClassDetails> classDetailsMap)

Deprecated. Session instance is no longer needed for logging. Will be removed in 2.8.

INTERNAL: Creates an instance of dynamic byte code weaver.

Parameters:

session - EclipseLink session (not used so null value is OK).

classDetailsMap - Class name to ClassDetails map.

PersistenceWeaver

public PersistenceWeaver(Map<String,ClassDetails> classDetailsMap)

INTERNAL: Creates an instance of dynamic byte code weaver.

Parameters:

classDetailsMap - Class name to ClassDetails map.

Since:

2.7

Method Detail

clear

public void clear()

INTERNAL: Allow the weaver to be clear to release its referenced memory. This is required because the class loader reference to the transformer will never gc.

getClassDetailsMap

public Map<String,ClassDetails> getClassDetailsMap()

INTERNAL: Get Class name in JVM '/' format to ClassDetails map.

Returns:

Class name in JVM '/' format to ClassDetails map.

transform

public byte[] transform(ClassLoader loader,
                        String className,
                        Class classBeingRedefined,
                        ProtectionDomain protectionDomain,
                        byte[] classfileBuffer)
                 throws IllegalClassFormatException

INTERNAL: Perform dynamic byte code weaving of class.

Specified by:

transform in interface jakarta.persistence.spi.ClassTransformer

Parameters:

loader - The defining loader of the class to be transformed, may be null if the bootstrap loader.

className - The name of the class in the internal form of fully qualified class and interface names.

classBeingRedefined - If this is a redefine, the class being redefined, otherwise null.

protectionDomain - The protection domain of the class being defined or redefined.

classfileBuffer - The input byte buffer in class file format (must not be modified).

Returns:

A well-formed class file buffer (the result of the transform), or null if no transform is performed.

Throws:

IllegalClassFormatException

getShortName

protected static String getShortName(String name)

INTERNAL: Returns an unqualified class name from the specified class name.

Parameters:

name - Class name with '/' as delimiter.

Returns:

Unqualified class name.