org.apache.derby.iapi.services.loader
Interface ClassFactory

All Known Implementing Classes:

DatabaseClasses

public interface ClassFactory

A class factory module to handle application classes and generated classes.

Method Summary

ClassInspector	getClassInspector() Return a ClassInspector object
int	getClassLoaderVersion() Return the in-memory "version" of the class manager.
boolean	isApplicationClass(java.lang.Class theClass) Was the passed in class loaded by a ClassManager.
java.lang.Class	loadApplicationClass(java.io.ObjectStreamClass classDescriptor) Load an application class, or a class that is potentially an application class.
java.lang.Class	loadApplicationClass(java.lang.String className) Load an application class, or a class that is potentially an application class.
GeneratedClass	loadGeneratedClass(java.lang.String fullyQualifiedName, ByteArray classDump) Add a generated class to the class manager's class repository.
void	notifyModifyClasspath(java.lang.String classpath) Notify the class manager that the classpath has been modified.
void	notifyModifyJar(boolean reload) Notify the class manager that a jar file has been modified.

Method Detail

loadGeneratedClass

public GeneratedClass loadGeneratedClass(java.lang.String fullyQualifiedName,
                                         ByteArray classDump)
                                  throws StandardException

Add a generated class to the class manager's class repository.

Throws:

StandardException - Standard Cloudscape error policy

getClassInspector

public ClassInspector getClassInspector()

Return a ClassInspector object

loadApplicationClass

public java.lang.Class loadApplicationClass(java.lang.String className)
                                     throws java.lang.ClassNotFoundException

Load an application class, or a class that is potentially an application class.

Throws:

java.lang.ClassNotFoundException - Class cannot be found

loadApplicationClass

public java.lang.Class loadApplicationClass(java.io.ObjectStreamClass classDescriptor)
                                     throws java.lang.ClassNotFoundException

Load an application class, or a class that is potentially an application class.

Throws:

java.lang.ClassNotFoundException - Class cannot be found

isApplicationClass

public boolean isApplicationClass(java.lang.Class theClass)

Was the passed in class loaded by a ClassManager.

Returns:

true if the class was loaded by a Cloudscape class manager, false it is was loaded by the system class loader, or another class loader.

notifyModifyJar

public void notifyModifyJar(boolean reload)
                     throws StandardException

Notify the class manager that a jar file has been modified.

Parameters:

reload - Restart any attached class loader

Throws:

StandardException - thrown on error

notifyModifyClasspath

public void notifyModifyClasspath(java.lang.String classpath)
                           throws StandardException

Notify the class manager that the classpath has been modified.

Throws:

StandardException - thrown on error

getClassLoaderVersion

public int getClassLoaderVersion()

Return the in-memory "version" of the class manager. The version is bumped everytime the classes are re-loaded.