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>

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 and Description
static String	PROXY_SUFFIX

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

CONSTRUCTED_FLAG_NAME, DEFAULT_METHOD_RESOLVER, DEFAULT_PROXY_PACKAGE, log

Constructor Summary

Constructors

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

Method Summary

Methods

Modifier and Type	Method and Description
protected void	addInterfacesFromTypeClosure(Set<? extends Type> typeClosure, Class<?> proxiedBeanType, String proxyName)
protected void	addMethods(javassist.bytecode.ClassFile proxyClassType)
protected void	addMethodsFromClass(javassist.bytecode.ClassFile proxyClassType)
protected void	addSpecialMethods(javassist.bytecode.ClassFile proxyClassType) Adds methods requiring special implementations rather than just delegation.
protected javassist.bytecode.Bytecode	createForwardingMethodBody(javassist.bytecode.ClassFile proxyClassType, MethodInformation method)
protected javassist.bytecode.Bytecode	createInterceptorBody(javassist.bytecode.ClassFile file, MethodInformation methodInfo, boolean delegateToSuper) Creates the given method on the proxy class where the implementation forwards the call directly to the method handler.
protected String	getProxyNameSuffix() Returns a suffix to append to the name of the proxy class.
protected static void	invokeMethodHandler(javassist.bytecode.ClassFile file, javassist.bytecode.Bytecode b, MethodInformation methodInfo, boolean addReturnInstruction, BytecodeMethodResolver bytecodeMethodResolver, boolean addProceed) calls methodHandler.invoke for a given method

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

addAdditionalInterfaces, addConstructedGuardToMethodBody, addConstructors, addFields, addInterface, addSerializationSupport, create, createInterceptorBody, createSpecialMethodBody, generateEqualsMethod, generateHashCodeMethod, getAdditionalInterfaces, getBaseProxyName, getBean, getBeanType, getProxyClass, invokeMethodHandler, isProxy, resolveClassLoaderForBeanProxy, resolveClassLoaderForBeanProxy, setBeanInstance

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

Constructor Detail

InterceptedSubclassFactory

public InterceptedSubclassFactory(Class<?> proxiedBeanType,
                          Set<? extends Type> typeClosure,
                          javax.enterprise.inject.spi.Bean<?> bean,
                          Set<MethodSignature> enhancedMethodSignatures)

InterceptedSubclassFactory

public InterceptedSubclassFactory(Class<?> proxiedBeanType,
                          Set<? extends Type> typeClosure,
                          String proxyName,
                          javax.enterprise.inject.spi.Bean<?> bean,
                          Set<MethodSignature> enhancedMethodSignatures)

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

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(javassist.bytecode.ClassFile proxyClassType)

Overrides:

addMethods in class ProxyFactory<T>

addMethodsFromClass

protected void addMethodsFromClass(javassist.bytecode.ClassFile proxyClassType)

Overrides:

addMethodsFromClass in class ProxyFactory<T>

createForwardingMethodBody

protected javassist.bytecode.Bytecode createForwardingMethodBody(javassist.bytecode.ClassFile proxyClassType,
                                                     MethodInformation method)
                                                          throws javassist.NotFoundException

Overrides:

createForwardingMethodBody in class ProxyFactory<T>

Throws:

javassist.NotFoundException

createInterceptorBody

protected javassist.bytecode.Bytecode createInterceptorBody(javassist.bytecode.ClassFile file,
                                                MethodInformation methodInfo,
                                                boolean delegateToSuper)
                                                     throws javassist.NotFoundException

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:

file - the class file

methodInfo - any JLR method

delegateToSuper -

Returns:

the method byte code

Throws:

javassist.NotFoundException

invokeMethodHandler

protected static void invokeMethodHandler(javassist.bytecode.ClassFile file,
                       javassist.bytecode.Bytecode b,
                       MethodInformation methodInfo,
                       boolean addReturnInstruction,
                       BytecodeMethodResolver bytecodeMethodResolver,
                       boolean addProceed)

calls methodHandler.invoke for a given method

Parameters:

file - the current class file

b - the bytecode to add the methodHandler.invoke call to

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(javassist.bytecode.ClassFile proxyClassType)

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

addInterfacesFromTypeClosure

protected void addInterfacesFromTypeClosure(Set<? extends Type> typeClosure,
                                Class<?> proxiedBeanType,
                                String proxyName)

Overrides:

addInterfacesFromTypeClosure in class ProxyFactory<T>