org.apache.jdo.impl.model.java.runtime.jdk5

Class JDK5RuntimeJavaModelFactory

java.lang.Object

org.apache.jdo.impl.model.java.AbstractJavaModelFactory

org.apache.jdo.impl.model.java.reflection.ReflectionJavaModelFactory

org.apache.jdo.impl.model.java.runtime.RuntimeJavaModelFactory

org.apache.jdo.impl.model.java.runtime.jdk5.JDK5RuntimeJavaModelFactory

All Implemented Interfaces:

org.apache.jdo.model.java.JavaModelFactory

public class JDK5RuntimeJavaModelFactory
extends RuntimeJavaModelFactory

A reflection based JavaModelFactory implementation used at runtime in a J2SE5.0 environment. The implementation takes java.lang.Class and java.lang.reflect.Field instances to get Java related metadata about types and fields. This implementation caches JavaModel instances per ClassLoader.

JDK5RuntimeJavaModelFactory implements the singleton pattern; method getInstance() provides access to the singleton factory instance. This method also registers a model listener at the JDOImplHelper to handle the runtime metadata as generated by the enhancer.

Since:

JDO 2.0

Author:

Michael Bouschen

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	JDK5RuntimeJavaModelFactory() Creates a new RuntimeJavaModelFactory.

Method Summary

Methods

Modifier and Type	Method and Description
static JDK5RuntimeJavaModelFactory	getInstance() Returns the singleton instance of JDK5RuntimeJavaModelFactory.
protected org.apache.jdo.model.java.JavaModel	newJavaModelInstance(java.lang.ClassLoader classLoader) Creates a new instance of the JavaModel implementation class.

Methods inherited from class org.apache.jdo.impl.model.java.runtime.RuntimeJavaModelFactory

checkPermission, registerFactory

Methods inherited from class org.apache.jdo.impl.model.java.reflection.ReflectionJavaModelFactory

createJavaModel, forNamePrivileged, getClassLoaderPrivileged, getJavaClass, getJavaType

Methods inherited from class org.apache.jdo.impl.model.java.AbstractJavaModelFactory

getJavaModel, removeJavaModel, removeJavaModel

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

JDK5RuntimeJavaModelFactory

protected JDK5RuntimeJavaModelFactory()

Creates a new RuntimeJavaModelFactory. This constructor should not be called directly; instead, the singleton access method getInstance() should be used.

Method Detail

getInstance

public static JDK5RuntimeJavaModelFactory getInstance()
                                               throws org.apache.jdo.model.ModelFatalException

Returns the singleton instance of JDK5RuntimeJavaModelFactory. On first call it registers a model listener at the JDOImplHelper. This method checks that the caller is authorized for JDOPermission("getMetadata"), and if not, throws ModelFatalException wrapping the SecurityException.

Returns:

RuntimeJavaModelFactory instance

Throws:

org.apache.jdo.model.ModelFatalException - if the caller does not have the getMetadata permission.

newJavaModelInstance

protected org.apache.jdo.model.java.JavaModel newJavaModelInstance(java.lang.ClassLoader classLoader)

Creates a new instance of the JavaModel implementation class.

This implementation returns a JDK5RuntimeJavaModel instance.

Overrides:

newJavaModelInstance in class RuntimeJavaModelFactory

Returns:

a new JavaModel instance.