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public interface InjectionPoint
Provides access to metadata about an injection point. May represent an injected field or a parameter of a bean constructor, initializer method, producer method, disposer method or observer method.
Occasionally, a bean with scope
@Dependent
needs to access
metadata relating to the object to which it belongs. The bean may inject an
InjectionPoint
representing the injection point into which the bean
was injected.
For example, the following producer method creates injectable Loggers. The log category of a Logger depends upon the class of the object into which it is injected.
@Produces Logger createLogger(InjectionPoint injectionPoint) { return Logger.getLogger( injectionPoint.getMember().getDeclaringClass().getName() ); }
Only dependent objects, may obtain information about the injection point to which they belong.
Method Summary | |
---|---|
Annotated |
getAnnotated()
Obtain an instance of AnnotatedField
or AnnotatedParameter , depending upon
whether the injection point is an injected field or a constructor/method parameter. |
Bean<?> |
getBean()
Get the Bean object representing the
bean that defines the injection point. |
java.lang.reflect.Member |
getMember()
Get the Field object in the case of field
injection, the Method object in
the case of method parameter injection or the
Constructor object in the case of constructor
parameter injection. |
java.util.Set<java.lang.annotation.Annotation> |
getQualifiers()
Get the required qualifiers of the injection point. |
java.lang.reflect.Type |
getType()
Get the required type of injection point. |
boolean |
isDelegate()
Determines if the injection point is a decorator delegate injection point. |
boolean |
isTransient()
Determines if the injection is a transient field. |
Method Detail |
---|
java.lang.reflect.Type getType()
java.util.Set<java.lang.annotation.Annotation> getQualifiers()
Bean<?> getBean()
Bean
object representing the
bean that defines the injection point. If the injection point does not
belong to a bean, return a null value.
Bean
object representing
bean that defines the injection point, of null if the injection
point does not belong to a beanjava.lang.reflect.Member getMember()
Field
object in the case of field
injection, the Method
object in
the case of method parameter injection or the
Constructor
object in the case of constructor
parameter injection.
Annotated getAnnotated()
AnnotatedField
or AnnotatedParameter
, depending upon
whether the injection point is an injected field or a constructor/method parameter.
AnnotatedField
or AnnotatedParameter
boolean isDelegate()
boolean isTransient()
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