Interceptor (Jakarta EE Platform API)

Type Parameters:

T - the interceptor bean class

All Superinterfaces:

Bean<T>, BeanAttributes<T>, Contextual<T>
```
public interface Interceptor<T>
extends Bean<T>
```
Represents an enabled interceptor.

Since CDI 2.0, an implementation of this interface may implement Prioritized in order to enable the interceptor with given priority value for entire application.

Author:

Gavin King, Pete Muir, David Allen

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`Set<Annotation>`	`getInterceptorBindings()`	Obtains the interceptor bindings of the interceptor.
`Object`	`intercept(InterceptionType type, T instance, InvocationContext ctx)`	Invokes the specified kind of lifecycle callback or method invocation interception upon the given interceptor instance.
`boolean`	`intercepts(InterceptionType type)`	Determines if the interceptor intercepts the specified kind of lifecycle callback or method invocation.

Methods inherited from interface jakarta.enterprise.inject.spi.Bean
getBeanClass, getInjectionPoints

Methods inherited from interface jakarta.enterprise.inject.spi.BeanAttributes
getName, getQualifiers, getScope, getStereotypes, getTypes, isAlternative

Methods inherited from interface jakarta.enterprise.context.spi.Contextual
create, destroy

- Method Detail
  - getInterceptorBindings
```
Set<Annotation> getInterceptorBindings()
```
    Obtains the interceptor bindings of the interceptor.
    
    Returns:
    
    the set of interceptor bindings
  - intercepts
```
boolean intercepts(InterceptionType type)
```
    Determines if the interceptor intercepts the specified kind of lifecycle callback or method invocation.
    
    Parameters:
    
    type - the kind of interception
    
    Returns:
    
    returns true if the interceptor intercepts callbacks or business methods of the given type, and false otherwise.
  - intercept
```
Object intercept(InterceptionType type,
                 T instance,
                 InvocationContext ctx)
          throws Exception
```
    Invokes the specified kind of lifecycle callback or method invocation interception upon the given interceptor instance.
    
    Parameters:
    
    type - the kind of interception
    
    instance - the interceptor instance to invoke
    
    ctx - the context for the invocation
    
    Returns:
    
    the invocation return value
    
    Throws:
    
    Exception - thrown by the target method and/or the following interceptors in the chain