Package org.jboss.weld.bean.proxy

Class InterceptedSubclassFactory<T>

java.lang.Object

org.jboss.weld.bean.proxy.ProxyFactory<T>

org.jboss.weld.bean.proxy.InterceptedSubclassFactory<T>

All Implemented Interfaces:

PrivilegedAction<T>

public class InterceptedSubclassFactory<T>
extends ProxyFactory<T>

Factory for producing subclasses that are used by the combined interceptors and decorators stack.

Author:

Marius Bogoevici

Field Summary

Fields

Modifier and Type	Field	Description
protected static String	PRIVATE_METHOD_HANDLER_FIELD_NAME
static String	PROXY_SUFFIX

Fields inherited from class org.jboss.weld.bean.proxy.ProxyFactory

CONSTRUCTED_FLAG_NAME, DEFAULT_METHOD_RESOLVER, DEFAULT_PROXY_PACKAGE, INIT_METHOD_NAME, INVOKE_METHOD_NAME, LBEAN_IDENTIFIER, LJAVA_LANG_BYTE, LJAVA_LANG_CLASS, LJAVA_LANG_OBJECT, LJAVA_LANG_REFLECT_METHOD, LJAVA_LANG_STRING, LJAVA_LANG_THREAD_LOCAL, METHOD_HANDLER_FIELD_NAME, WELD_PROXY_PREFIX

Constructor Summary

Constructors

Constructor	Description
InterceptedSubclassFactory(String contextId, Class<?> proxiedBeanType, Set<? extends Type> typeClosure, String proxyName, Bean<?> bean, Set<MethodSignature> enhancedMethodSignatures, Set<MethodSignature> interceptedMethodSignatures)	Creates a new proxy factory when the name of the proxy class is already known, such as during de-serialization
InterceptedSubclassFactory(String contextId, Class<?> proxiedBeanType, Set<? extends Type> typeClosure, Bean<?> bean, Set<MethodSignature> enhancedMethodSignatures, Set<MethodSignature> interceptedMethodSignatures)

Method Summary

Modifier and Type	Method	Description
void	addInterfacesFromTypeClosure(Set<? extends Type> typeClosure, Class<?> proxiedBeanType)
protected void	addMethods(org.jboss.classfilewriter.ClassFile proxyClassType, org.jboss.classfilewriter.ClassMethod staticConstructor)
protected void	addMethodsFromClass(org.jboss.classfilewriter.ClassFile proxyClassType, org.jboss.classfilewriter.ClassMethod staticConstructor)
protected void	addSpecialMethods(org.jboss.classfilewriter.ClassFile proxyClassType, org.jboss.classfilewriter.ClassMethod staticConstructor)	Adds methods requiring special implementations rather than just delegation.
protected void	createForwardingMethodBody(org.jboss.classfilewriter.ClassMethod classMethod, MethodInformation method, org.jboss.classfilewriter.ClassMethod staticConstructor)
protected void	createInterceptorBody(org.jboss.classfilewriter.ClassMethod method, MethodInformation methodInfo, boolean delegateToSuper, org.jboss.classfilewriter.ClassMethod staticConstructor)	Creates the given method on the proxy class where the implementation forwards the call directly to the method handler.
Class<?>	getBeanType()
protected Class<? extends MethodHandler>	getMethodHandlerType()
protected String	getProxyNameSuffix()	Returns a suffix to append to the name of the proxy class.
protected void	invokeMethodHandler(org.jboss.classfilewriter.ClassMethod method, MethodInformation methodInfo, boolean addReturnInstruction, BytecodeMethodResolver bytecodeMethodResolver, boolean addProceed, org.jboss.classfilewriter.ClassMethod staticConstructor)	calls methodHandler.invoke for a given method
protected boolean	isUsingProxyInstantiator()
static <T> void	setPrivateMethodHandler(T instance)	If the given instance represents a proxy and its class is synthetic and its class name ends with "Subclass", attempt to find the "privateMethodHandler" field and set its value to PrivateMethodHandler.INSTANCE.

Methods inherited from class org.jboss.weld.bean.proxy.ProxyFactory

addAdditionalInterfaces, addConstructedGuardToMethodBody, addConstructedGuardToMethodBody, addConstructors, addFields, addInterface, addSerializationSupport, create, createInterceptorBody, createSpecialMethodBody, generateEqualsMethod, generateGetMethodHandlerBody, generateHashCodeMethod, generateSetMethodHandlerBody, getAdditionalInterfaces, getBaseProxyName, getBean, getContextId, getMethodHandlerField, getProxiedBeanType, getProxyClass, getProxySuperclass, invokeMethodHandler, isMethodAccepted, run, setBeanInstance, toClass

Methods inherited from class java.lang.Object

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

Field Detail

PROXY_SUFFIX

public static final String PROXY_SUFFIX

See Also:

Constant Field Values

PRIVATE_METHOD_HANDLER_FIELD_NAME

protected static final String PRIVATE_METHOD_HANDLER_FIELD_NAME

See Also:

Constant Field Values

Constructor Detail

InterceptedSubclassFactory

public InterceptedSubclassFactory(String contextId,
                                  Class<?> proxiedBeanType,
                                  Set<? extends Type> typeClosure,
                                  Bean<?> bean,
                                  Set<MethodSignature> enhancedMethodSignatures,
                                  Set<MethodSignature> interceptedMethodSignatures)

InterceptedSubclassFactory

public InterceptedSubclassFactory(String contextId,
                                  Class<?> proxiedBeanType,
                                  Set<? extends Type> typeClosure,
                                  String proxyName,
                                  Bean<?> bean,
                                  Set<MethodSignature> enhancedMethodSignatures,
                                  Set<MethodSignature> interceptedMethodSignatures)

Creates a new proxy factory when the name of the proxy class is already known, such as during de-serialization

Parameters:

proxiedBeanType - the super-class for this proxy class

typeClosure - the bean types of the bean

enhancedMethodSignatures - a restricted set of methods that need to be intercepted

Method Detail

addInterfacesFromTypeClosure

public void addInterfacesFromTypeClosure(Set<? extends Type> typeClosure,
                                         Class<?> proxiedBeanType)

Overrides:

addInterfacesFromTypeClosure in class ProxyFactory<T>

getProxyNameSuffix

protected String getProxyNameSuffix()

Returns a suffix to append to the name of the proxy class. The name already consists of _$$_Weld, to which the suffix is added. This allows the creation of different types of proxies for the same class.

Overrides:

getProxyNameSuffix in class ProxyFactory<T>

Returns:

a name suffix

addMethods

protected void addMethods(org.jboss.classfilewriter.ClassFile proxyClassType,
                          org.jboss.classfilewriter.ClassMethod staticConstructor)

Overrides:

addMethods in class ProxyFactory<T>

addMethodsFromClass

protected void addMethodsFromClass(org.jboss.classfilewriter.ClassFile proxyClassType,
                                   org.jboss.classfilewriter.ClassMethod staticConstructor)

Overrides:

addMethodsFromClass in class ProxyFactory<T>

createForwardingMethodBody

protected void createForwardingMethodBody(org.jboss.classfilewriter.ClassMethod classMethod,
                                          MethodInformation method,
                                          org.jboss.classfilewriter.ClassMethod staticConstructor)

Overrides:

createForwardingMethodBody in class ProxyFactory<T>

createInterceptorBody

protected void createInterceptorBody(org.jboss.classfilewriter.ClassMethod method,
                                     MethodInformation methodInfo,
                                     boolean delegateToSuper,
                                     org.jboss.classfilewriter.ClassMethod staticConstructor)

Creates the given method on the proxy class where the implementation forwards the call directly to the method handler.

the generated bytecode is equivalent to:

return (RetType) methodHandler.invoke(this,param1,param2);

Parameters:

methodInfo - any JLR method

delegateToSuper -

invokeMethodHandler

protected void invokeMethodHandler(org.jboss.classfilewriter.ClassMethod method,
                                   MethodInformation methodInfo,
                                   boolean addReturnInstruction,
                                   BytecodeMethodResolver bytecodeMethodResolver,
                                   boolean addProceed,
                                   org.jboss.classfilewriter.ClassMethod staticConstructor)

calls methodHandler.invoke for a given method

Parameters:

methodInfo - declaring class of the method

addReturnInstruction - set to true you want to return the result of

bytecodeMethodResolver - The method resolver

addProceed -

addSpecialMethods

protected void addSpecialMethods(org.jboss.classfilewriter.ClassFile proxyClassType,
                                 org.jboss.classfilewriter.ClassMethod staticConstructor)

Adds methods requiring special implementations rather than just delegation.

Overrides:

addSpecialMethods in class ProxyFactory<T>

Parameters:

proxyClassType - the Javassist class description for the proxy type

getBeanType

public Class<?> getBeanType()

Overrides:

getBeanType in class ProxyFactory<T>

getMethodHandlerType

protected Class<? extends MethodHandler> getMethodHandlerType()

Overrides:

getMethodHandlerType in class ProxyFactory<T>

isUsingProxyInstantiator

protected boolean isUsingProxyInstantiator()

Overrides:

isUsingProxyInstantiator in class ProxyFactory<T>

Returns:

true if ProxyInstantiator is used to instantiate proxy instances

setPrivateMethodHandler

public static <T> void setPrivateMethodHandler(T instance)

If the given instance represents a proxy and its class is synthetic and its class name ends with "Subclass", attempt to find the "privateMethodHandler" field and set its value to PrivateMethodHandler.INSTANCE.

Parameters:

instance -