custom class loader question

[Naresh Agarwal]

Hi

I've written a Custom class loader, which reads the bytecode from a
database and returns the Class object.

For example, bytecode of a class "Test" is stored in the database.
Through custom class loader, I get the Class object for this class
"Test" as follows:

Class c = cl.loadClass("Test",true)) // cl is instance of my custom
class loader

Now I want to call the methods of "Test" class.
Is it possible to get an instance of the Test class?

One way to access the methods of the Test object is using reflection
APIs, but is there a way I can directly get the instance of Test
class, which I can use to call its methods.

thanks,
Naresh

[Raymond DeCampo]

Naresh Agarwal wrote:

Hi

I've written a Custom class loader, which reads the bytecode from a
database and returns the Class object.

For example, bytecode of a class "Test" is stored in the database.
Through custom class loader, I get the Class object for this class
"Test" as follows:

Class c = cl.loadClass("Test",true)) // cl is instance of my custom
class loader

Now I want to call the methods of "Test" class.
Is it possible to get an instance of the Test class?
Use Class.newInstance().

One way to access the methods of the Test object is using reflection
APIs, but is there a way I can directly get the instance of Test
class, which I can use to call its methods.

Yes, this should be possible, but will require some configuration and/or
special code. I believe there is a way to tell the JVM which class
should be the system class loader. I would start there.

HTH,
Ray

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