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

Class RuntimeJavaModelFactory

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

All Implemented Interfaces:

org.apache.jdo.model.java.JavaModelFactory

Direct Known Subclasses:

JDK5RuntimeJavaModelFactory

public class RuntimeJavaModelFactory
extends org.apache.jdo.impl.model.java.reflection.ReflectionJavaModelFactory

A reflection based JavaModelFactory implementation used at runtime. 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 instance sper ClassLoader.

RuntimeJavaModelFactory 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:

1.0.1

Version:

2.0

Constructor Summary

Constructors

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

Method Summary

Methods

Modifier and Type	Method and Description
protected static void	checkPermission() This method checks that the caller is authorized for JDOPermission("getMetadata"), and if not, throws ModelFatalException wrapping the SecurityException.
static RuntimeJavaModelFactory	getInstance() Returns the singleton instance of RuntimeJavaModelFactory.
protected org.apache.jdo.model.java.JavaModel	newJavaModelInstance(java.lang.ClassLoader classLoader) Creates a new instance of the JavaModel implementation class.
protected void	registerFactory() Registers this JavaModelFactory instance at the JDOImplHelper.

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

RuntimeJavaModelFactory

protected RuntimeJavaModelFactory()

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 RuntimeJavaModelFactory getInstance()
                                           throws org.apache.jdo.model.ModelFatalException

Returns the singleton instance of RuntimeJavaModelFactory. 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.

checkPermission

protected static void checkPermission()
                               throws org.apache.jdo.model.ModelFatalException

This method checks that the caller is authorized for JDOPermission("getMetadata"), and if not, throws ModelFatalException wrapping the SecurityException.

Throws:

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

registerFactory

protected void registerFactory()

Registers this JavaModelFactory instance at the JDOImplHelper.

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 RuntimeJavaModel instance.

Overrides:

newJavaModelInstance in class org.apache.jdo.impl.model.java.reflection.ReflectionJavaModelFactory

Returns:

a new JavaModel instance.