org.jboss.weld.bean.proxy

Class DefaultProxyInstantiator

java.lang.Object

org.jboss.weld.bean.proxy.DefaultProxyInstantiator

All Implemented Interfaces:

ProxyInstantiator, Service

public final class DefaultProxyInstantiator
extends java.lang.Object
implements ProxyInstantiator

Default ProxyInstantiator implementation that uses proxy class' no-arg constructor to create a new instance.

Author:

Jozef Hartinger

Nested Class Summary

Nested classes/interfaces inherited from interface org.jboss.weld.bean.proxy.ProxyInstantiator

ProxyInstantiator.Factory

Field Summary

Fields

Modifier and Type	Field and Description
static ProxyInstantiator	INSTANCE

Method Summary

Modifier and Type	Method and Description
void	cleanup() Called by Weld when it is shutting down, allowing the service to perform any cleanup needed.
boolean	isUsingConstructor() Indicates whether this instantiator calls proxy class' no-arg constructor or whether it uses an alternative mechanism to obtain a proxy class instance.
<T> T	newInstance(java.lang.Class<T> clazz) Create a new instance of a proxy class.
<T> UnproxyableResolutionException	validateNoargConstructor(java.lang.reflect.Constructor<T> constructor, java.lang.Class<?> clazz, Bean<?> declaringBean) Validate, whether the given constructor is sufficient for a class to be proxyable.

Methods inherited from class java.lang.Object

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

Field Detail

INSTANCE

public static final ProxyInstantiator INSTANCE

Method Detail

newInstance

public <T> T newInstance(java.lang.Class<T> clazz)
                  throws java.lang.InstantiationException,
                         java.lang.IllegalAccessException

Description copied from interface: ProxyInstantiator

Create a new instance of a proxy class. This method needs to be run from a privileged context.

Specified by:

newInstance in interface ProxyInstantiator

Type Parameters:

T - the proxy class

Parameters:

clazz - the class

Returns:

an instance of a proxy class

Throws:

java.lang.InstantiationException

java.lang.IllegalAccessException

validateNoargConstructor

public <T> UnproxyableResolutionException validateNoargConstructor(java.lang.reflect.Constructor<T> constructor,
                                                                   java.lang.Class<?> clazz,
                                                                   Bean<?> declaringBean)
                                                            throws UnproxyableResolutionException

Description copied from interface: ProxyInstantiator

Validate, whether the given constructor is sufficient for a class to be proxyable.

Specified by:

validateNoargConstructor in interface ProxyInstantiator

Parameters:

constructor - the given constructor

clazz - the given class

declaringBean - the declaring bean

Returns:

an UnproxyableResolutionException if the given class is not proxyable due to the given constructor, null otherwise

Throws:

UnproxyableResolutionException

isUsingConstructor

public boolean isUsingConstructor()

Description copied from interface: ProxyInstantiator

Indicates whether this instantiator calls proxy class' no-arg constructor or whether it uses an alternative mechanism to obtain a proxy class instance.

Specified by:

isUsingConstructor in interface ProxyInstantiator

Returns:

true if this implementation uses proxy class' no-arg constructor for creating new instances, false otherwise

cleanup

public void cleanup()

Description copied from interface: Service

Called by Weld when it is shutting down, allowing the service to perform any cleanup needed.

Specified by:

cleanup in interface Service