org.grouplens.grapht.reflect.internal

Class FieldInjectionPoint

java.lang.Object

org.grouplens.grapht.reflect.internal.FieldInjectionPoint

All Implemented Interfaces:

Serializable, InjectionPoint

public final class FieldInjectionPoint
extends Object
implements InjectionPoint, Serializable

FieldInjectionPoint is an injection point wrapping a field.

Author:

GroupLens Research

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
FieldInjectionPoint(Field field) Create an injection point wrapping the given field

Method Summary

Modifier and Type	Method and Description
boolean	equals(Object o)
<A extends Annotation> A	getAttribute(Class<A> atype) Return the attribute of type A that is applied to the injection point.
Collection<Annotation>	getAttributes()
Class<?>	getErasedType()
Field	getMember() Return the Member that produced this injection point.
Annotation	getQualifier() Return the qualifier annotation added to the injection point.
Type	getType() Return the type required to satisfy the injection point.
int	hashCode()
boolean	isNullable()
String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

FieldInjectionPoint

public FieldInjectionPoint(@Nonnull
                           Field field)

Create an injection point wrapping the given field

Parameters:

field - The field to inject

Throws:

NullPointerException - if field is null

Method Detail

getType

public Type getType()

Description copied from interface: InjectionPoint

Return the type required to satisfy the injection point.

Specified by:

getType in interface InjectionPoint

Returns:

The type of the injection point

getErasedType

public Class<?> getErasedType()

Specified by:

getErasedType in interface InjectionPoint

Returns:

Return the erased type of InjectionPoint.getType()

getQualifier

@Nullable
public Annotation getQualifier()

Description copied from interface: InjectionPoint

Return the qualifier annotation added to the injection point. The returned annotation's type will have been annotated with Qualifier. If the injection point is not qualified, this will return null.

Specified by:

getQualifier in interface InjectionPoint

Returns:

Any qualifier applied to the injection point

getAttribute

@Nullable
public <A extends Annotation> A getAttribute(Class<A> atype)

Description copied from interface: InjectionPoint

Return the attribute of type A that is applied to the injection point. If the injection point does not have an attribute of type A, then null is returned.

Specified by:

getAttribute in interface InjectionPoint

Parameters:

atype - Attribute annotation type. It must be annotated with Attribute.

Returns:

The instance of A applied to the injection point, or null

getAttributes

@Nonnull
public Collection<Annotation> getAttributes()

Specified by:

getAttributes in interface InjectionPoint

Returns:

Immutable collection of attribute annotations (does not include the qualifier)

getMember

@Nonnull
public Field getMember()

Description copied from interface: InjectionPoint

Return the Member that produced this injection point. Synthetic injection points can have a null member.

Specified by:

getMember in interface InjectionPoint

Returns:

The Member that produces this injection point

isNullable

public boolean isNullable()

Specified by:

isNullable in interface InjectionPoint

Returns:

True if this injection point accepts null values

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

toString

public String toString()

Overrides:

toString in class Object