org.datanucleus

Interface ImplementationCreator

All Known Implementing Classes:

ImplementationCreatorImpl

public interface ImplementationCreator

Create instances of persistable objects. Instantiation of interfaces or abstract classes is impossible, and for this reason concrete classes are generated and and enhanced at runtime by the ImplementationCreator. The generated classes are loaded/defined by an internal ClassLoader to the ImplementationCreator. The internal ClassLoader delegates to the ClassLoaderResolver (loader) the load of user classes.

Method Summary

Modifier and Type	Method and Description
ClassLoader	getClassLoader() Accessor for the ClassLoader loading classes created at runtime
<T> T	newInstance(Class<T> pc, ClassLoaderResolver loader) Constructs an implementation for an interface and instantiates it

Method Detail

newInstance

<T> T newInstance(Class<T> pc,
                  ClassLoaderResolver loader)

Constructs an implementation for an interface and instantiates it

Type Parameters:

T - Type of persistable object

Parameters:

pc - The class of the interface or abstract class, or concrete class defined in MetaData

loader - The ClassLoaderResolver for the interface

Returns:

The instance implementing the interface

getClassLoader

ClassLoader getClassLoader()

Accessor for the ClassLoader loading classes created at runtime

Returns:

The ClassLoader