Package org.eclipse.jetty.cdi

Class CdiSpiDecorator

java.lang.Object

org.eclipse.jetty.cdi.CdiSpiDecorator

All Implemented Interfaces:

Decorator

public class CdiSpiDecorator
extends Object
implements Decorator

A Decorator that invokes the CDI provider within a webapp to decorate objects created by the contexts DecoratedObjectFactory (typically Listeners, Filters and Servlets). The CDI provider is invoked using MethodHandles to avoid any CDI instance or dependencies within the server scope. The code invoked is equivalent to:

 public <T> T decorate(T o)
 {
   BeanManager manager = CDI.current().getBeanManager();
   manager.createInjectionTarget(manager.createAnnotatedType((Class<T>)o.getClass()))
     .inject(o,manager.createCreationalContext(null));
   return o;
 }
 

Field Summary

Fields

Modifier and Type	Field	Description
static final String	MODE

Constructor Summary

Constructors

Constructor	Description
CdiSpiDecorator(ServletContextHandler context)

Method Summary

Modifier and Type	Method	Description
void	addUndecoratable(String... classname)
<T> T	decorate(T o)	Decorate an object.
void	destroy(Object o)	Destroy a decorated object.
Set<String>	getUndecoratable()	Get the set of classes that will not be decorated.
protected boolean	isDecoratable(Class<?> clazz)	Test if a class can be decorated.
void	setUndecoratable(Set<String> classnames)

Methods inherited from class java.lang.Object

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

Field Details

MODE

public static final String MODE

See Also:

• Constant Field Values

Constructor Details

CdiSpiDecorator

public CdiSpiDecorator(ServletContextHandler context)
                throws UnsupportedOperationException

Throws:

UnsupportedOperationException

Method Details

isDecoratable

protected boolean isDecoratable(Class<?> clazz)

Test if a class can be decorated. The default implementation checks the set from getUndecoratable() on the class and all it's super classes.

Parameters:

clazz - The class to check

Returns:

True if the class and all it's super classes can be decorated

getUndecoratable

public Set<String> getUndecoratable()

Get the set of classes that will not be decorated. The default set includes the listener from Weld that will itself setup decoration.

Returns:

The modifiable set of class names that will not be decorated (ie isDecoratable(Class) will return false.

See Also:

• isDecoratable(Class)

setUndecoratable

public void setUndecoratable(Set<String> classnames)

Parameters:

classnames - The set of class names that will not be decorated.

See Also:

• isDecoratable(Class)

addUndecoratable

public void addUndecoratable(String... classname)

Parameters:

classname - A class name that will be added to the undecoratable classes set.

See Also:

• getUndecoratable()
• isDecoratable(Class)

decorate

public <T> T decorate(T o)

Decorate an object.

The signature of this method must match what is introspected for by the Jetty DecoratingListener class. It is invoked dynamically.

Specified by:

decorate in interface Decorator

Type Parameters:

T - The type of the object to be decorated

Parameters:

o - The object to be decorated

Returns:

The decorated object

destroy

public void destroy(Object o)

Destroy a decorated object.

The signature of this method must match what is introspected for by the Jetty DecoratingListener class. It is invoked dynamically.

Specified by:

destroy in interface Decorator

Parameters:

o - The object to be destroyed