org.datanucleus.enhancer

Class RuntimeEnhancer

java.lang.Object

org.datanucleus.enhancer.RuntimeEnhancer

public class RuntimeEnhancer
extends Object

Class that will enhance a class at runtime, called via "javaagent".

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	RuntimeEnhancer.EnhancerClassLoader This classloader is used to load any classes that are necessary during enhancement process, and avoid using application classloaders to load classes

Constructor Summary

Constructors

Constructor and Description
RuntimeEnhancer(String api, Map contextProps) Constructor for a runtime enhancer for an API.

Method Summary

Modifier and Type	Method and Description
byte[]	enhance(String className, byte[] classdefinition, ClassLoader loader)
void	setClassEnhancerOption(String optionName)
void	unsetClassEnhancerOption(String optionName)

Methods inherited from class java.lang.Object

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

Constructor Detail

RuntimeEnhancer

public RuntimeEnhancer(String api,
                       Map contextProps)

Constructor for a runtime enhancer for an API. Creates its own NucleusContext for enhancement. Note that this is because the NucleusContext currently is for runtime or enhancement, so we isolate things; in future we could take in the NucleusContext from whatever operation has it (e.g PMF, EMF).

Parameters:

api - The API

contextProps - Properties for use by the NucleusContext (e.g ClassLoaderResolver class name, pluginRegistry).

Method Detail

setClassEnhancerOption

public void setClassEnhancerOption(String optionName)

unsetClassEnhancerOption

public void unsetClassEnhancerOption(String optionName)

enhance

public byte[] enhance(String className,
                      byte[] classdefinition,
                      ClassLoader loader)