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. |
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 definedbytes
- Byte code as loaded from disksource
- 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);