ca.eandb.jdcp.server.classmanager

Class FileClassManager

java.lang.Object

ca.eandb.jdcp.server.classmanager.AbstractClassManager

ca.eandb.jdcp.server.classmanager.FileClassManager

All Implemented Interfaces:

ClassManager, ParentClassManager, ca.eandb.util.classloader.ClassLoaderStrategy

public final class FileClassManager
extends AbstractClassManager
implements ParentClassManager

A ParentClassManager that stores class definitions in a directory tree rooted at a provided location.

Author:

Brad Kimmel

Constructor Summary

Constructors

Constructor and Description
FileClassManager(File rootDirectory) Creates a new FileClassManager.
FileClassManager(String rootDirectory) Creates a new FileClassManager.

Method Summary

Methods

Modifier and Type	Method and Description
ca.eandb.jdcp.server.classmanager.FileClassManager.FileChildClassManager	createChildClassManager() Creates a new child ClassManager.
ChildClassManager	getChildClassManager(int id) Retrieves an existing ChildClassManager.
ByteBuffer	getClassDefinition(String name)
byte[]	getClassDigest(String name) Gets the MD5 digest of the class definition.
void	setClassDefinition(String name, ByteBuffer def) Sets a class definition.

Methods inherited from class ca.eandb.jdcp.server.classmanager.AbstractClassManager

setClassDefinition

Methods inherited from class java.lang.Object

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

Methods inherited from interface ca.eandb.jdcp.server.classmanager.ClassManager

setClassDefinition

Constructor Detail

FileClassManager

public FileClassManager(String rootDirectory)
                 throws IllegalArgumentException

Creates a new FileClassManager.

Parameters:

rootDirectory - The working directory.

Throws:

IllegalArgumentException - If rootDirectory does not refer to a directory.

FileClassManager

public FileClassManager(File rootDirectory)
                 throws IllegalArgumentException

Creates a new FileClassManager.

Parameters:

rootDirectory - The working directory.

Throws:

IllegalArgumentException - If rootDirectory does not refer to a directory.

Method Detail

getChildClassManager

public ChildClassManager getChildClassManager(int id)

Description copied from interface: ParentClassManager

Retrieves an existing ChildClassManager.

Specified by:

getChildClassManager in interface ParentClassManager

Parameters:

id - The identifier for the ChildClassManager to retrieve.

Returns:

The ChildClassManager with the specified ID, or null if there is no such child.

getClassDigest

public byte[] getClassDigest(String name)

Description copied from interface: ClassManager

Gets the MD5 digest of the class definition.

Specified by:

getClassDigest in interface ClassManager

Parameters:

name - The fully qualified name of the class.

Returns:

The MD5 digest of the class definition.

setClassDefinition

public void setClassDefinition(String name,
                      ByteBuffer def)

Description copied from interface: ClassManager

Sets a class definition.

Specified by:

setClassDefinition in interface ClassManager

Parameters:

name - The fully qualified name of the class to define.

def - A ByteBuffer containing the definition of the class.

getClassDefinition

public ByteBuffer getClassDefinition(String name)

Specified by:

getClassDefinition in interface ca.eandb.util.classloader.ClassLoaderStrategy

createChildClassManager

public ca.eandb.jdcp.server.classmanager.FileClassManager.FileChildClassManager createChildClassManager()

Description copied from interface: ParentClassManager

Creates a new child ClassManager.

Specified by:

createChildClassManager in interface ParentClassManager

Returns:

The new child ClassManager.