com.ibm.wsspi.classloading
Interface ClassTransformer


public interface ClassTransformer

This interface allows a class to be transformed before it is loaded. It is intended for use by JPA but is defined here to avoid creating a dependency on any JPA packages.


Method Summary
 byte[] transformClass(java.lang.String name, byte[] bytes, java.security.CodeSource source, java.lang.ClassLoader loader)
          The following method is to be called before a class is defined.
 

Method Detail

transformClass

byte[] transformClass(java.lang.String name,
                      byte[] bytes,
                      java.security.CodeSource source,
                      java.lang.ClassLoader loader)
The following method is to be called before a class is defined.

Parameters:
name - Name of the class being defined
bytes - Byte code as loaded from disk
source - Code source used to define the class.
loader - Classloader to create the class from classByte.
Returns:
The transformed byte code returned by the persistence provider. If no transformation takes place, the original classBytes is returned. All data of the returned byte[] MUST be used by the classloader to define the POJO entity class. I.e. returnClass = defineClass(name, classBytes, 0, classBytes.length, cs);