org.apache.bcel.util

Class SyntheticRepository

java.lang.Object

org.apache.bcel.util.SyntheticRepository

All Implemented Interfaces:

Serializable, Repository

public class SyntheticRepository
extends Object
implements Repository

This repository is used in situations where a Class is created outside the realm of a ClassLoader. Classes are loaded from the file systems using the paths specified in the given class path. By default, this is the value returned by ClassPath.getClassPath().
It is designed to be used as a singleton, however it can also be used with custom classpaths. /** Abstract definition of a class repository. Instances may be used to load classes from different sources and may be used in the Repository.setRepository method.

Version:

$Id: SyntheticRepository.java 386056 2006-03-15 11:31:56Z tcurdt $

Author:

M. Dahm, David Dixon-Peugh

See Also:

Repository, Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
private static Map	_instances
private Map	_loadedClasses
private ClassPath	_path
private static String	DEFAULT_PATH

Constructor Summary

Constructors

Modifier	Constructor and Description
private	SyntheticRepository(ClassPath path)

Method Summary

Methods

Modifier and Type	Method and Description
void	clear() Clear all entries from cache.
JavaClass	findClass(String className) Find an already defined (cached) JavaClass object by name.
ClassPath	getClassPath() ClassPath associated with the Repository.
static SyntheticRepository	getInstance()
static SyntheticRepository	getInstance(ClassPath classPath)
JavaClass	loadClass(Class clazz) Find the JavaClass object for a runtime Class object.
private JavaClass	loadClass(InputStream is, String className)
JavaClass	loadClass(String className) Find a JavaClass object by name.
void	removeClass(JavaClass clazz) Remove class from repository
void	storeClass(JavaClass clazz) Store a new JavaClass instance into this Repository.

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_PATH

private static final String DEFAULT_PATH

_instances

private static Map _instances

_path

private ClassPath _path

_loadedClasses

private Map _loadedClasses

Constructor Detail

SyntheticRepository

private SyntheticRepository(ClassPath path)

Method Detail

getInstance

public static SyntheticRepository getInstance()

getInstance

public static SyntheticRepository getInstance(ClassPath classPath)

storeClass

public void storeClass(JavaClass clazz)

Store a new JavaClass instance into this Repository.

Specified by:

storeClass in interface Repository

removeClass

public void removeClass(JavaClass clazz)

Remove class from repository

Specified by:

removeClass in interface Repository

findClass

public JavaClass findClass(String className)

Find an already defined (cached) JavaClass object by name.

Specified by:

findClass in interface Repository

loadClass

public JavaClass loadClass(String className)
                    throws ClassNotFoundException

Find a JavaClass object by name. If it is already in this Repository, the Repository version is returned. Otherwise, the Repository's classpath is searched for the class (and it is added to the Repository if found).

Specified by:

loadClass in interface Repository

Parameters:

className - the name of the class

Returns:

the JavaClass object

Throws:

ClassNotFoundException - if the class is not in the Repository, and could not be found on the classpath

loadClass

public JavaClass loadClass(Class clazz)
                    throws ClassNotFoundException

Find the JavaClass object for a runtime Class object. If a class with the same name is already in this Repository, the Repository version is returned. Otherwise, getResourceAsStream() is called on the Class object to find the class's representation. If the representation is found, it is added to the Repository.

Specified by:

loadClass in interface Repository

Parameters:

clazz - the runtime Class object

Returns:

JavaClass object for given runtime class

Throws:

ClassNotFoundException - if the class is not in the Repository, and its representation could not be found

See Also:

Class

loadClass

private JavaClass loadClass(InputStream is,
                  String className)
                     throws ClassNotFoundException

Throws:

ClassNotFoundException

getClassPath

public ClassPath getClassPath()

ClassPath associated with the Repository.

Specified by:

getClassPath in interface Repository

clear

public void clear()

Clear all entries from cache.

Specified by:

clear in interface Repository