org.datanucleus.enhancer.bcel
Class NucleusRepository

java.lang.Object
  org.datanucleus.enhancer.bcel.NucleusRepository

All Implemented Interfaces:

java.io.Serializable, org.apache.bcel.util.Repository

public class NucleusRepository
extends java.lang.Object
implements org.apache.bcel.util.Repository

Custom repository used by BCEL to search for classes. The repository is customized to search classes using the ClassLoaderResolver.

See Also:

Serialized Form

Constructor Summary

NucleusRepository(org.datanucleus.ClassLoaderResolver clr)
Constructor

Method Summary

void	clear() Clear all classes in cache
void	defineClass(java.lang.String className, byte[] bytes) Define a class
org.apache.bcel.classfile.JavaClass	findClass(java.lang.String className) Find a class by searching in the classpath resources
org.apache.bcel.util.ClassPath	getClassPath() Accessor to the ClassPath
java.net.URL	getURL(java.lang.String className) Retrieve the URL of a class by searching in the classpath resources
org.apache.bcel.classfile.JavaClass	loadClass(java.lang.Class cls) Find a class by searching in the classpath resources
org.apache.bcel.classfile.JavaClass	loadClass(java.lang.String className) Find a class by searching in the classpath resources
void	removeClass(org.apache.bcel.classfile.JavaClass javaClass) Remove the JavaClass from the cache
void	storeClass(org.apache.bcel.classfile.JavaClass javaClass) Store the JavaClass in the cache.

Methods inherited from class java.lang.Object

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

Constructor Detail

NucleusRepository

public NucleusRepository(org.datanucleus.ClassLoaderResolver clr)

Constructor

Parameters:

clr - the ClassLoaderResolver

Method Detail

clear

public void clear()

Clear all classes in cache

Specified by:

clear in interface org.apache.bcel.util.Repository

findClass

public org.apache.bcel.classfile.JavaClass findClass(java.lang.String className)

Find a class by searching in the classpath resources

Specified by:

findClass in interface org.apache.bcel.util.Repository

Parameters:

className - the fully qualified class name

Returns:

the JavaClass of the className

defineClass

public void defineClass(java.lang.String className,
                        byte[] bytes)

Define a class

Parameters:

className - the fully qualified class name

bytes -

getURL

public java.net.URL getURL(java.lang.String className)

Retrieve the URL of a class by searching in the classpath resources

Parameters:

className - the fully qualified class name

Returns:

the URL or null

getClassPath

public org.apache.bcel.util.ClassPath getClassPath()

Accessor to the ClassPath

Specified by:

getClassPath in interface org.apache.bcel.util.Repository

Returns:

an empty classpath, since not used anywhere

loadClass

public org.apache.bcel.classfile.JavaClass loadClass(java.lang.String className)
                                              throws java.lang.ClassNotFoundException

Find a class by searching in the classpath resources

Specified by:

loadClass in interface org.apache.bcel.util.Repository

Parameters:

className - the fully qualified class name

Returns:

the JavaClass of the className

Throws:

java.lang.ClassNotFoundException

loadClass

public org.apache.bcel.classfile.JavaClass loadClass(java.lang.Class cls)
                                              throws java.lang.ClassNotFoundException

Find a class by searching in the classpath resources

Specified by:

loadClass in interface org.apache.bcel.util.Repository

Parameters:

cls - the class

Returns:

the JavaClass of the class

Throws:

java.lang.ClassNotFoundException

removeClass

public void removeClass(org.apache.bcel.classfile.JavaClass javaClass)

Remove the JavaClass from the cache

Specified by:

removeClass in interface org.apache.bcel.util.Repository

Parameters:

javaClass - the class to be removed

storeClass

public void storeClass(org.apache.bcel.classfile.JavaClass javaClass)

Store the JavaClass in the cache. The cache is keyed by JavaClass.getClassName()

Specified by:

storeClass in interface org.apache.bcel.util.Repository

Parameters:

javaClass - the class to be stored