Module io.leangen.geantyref

Package io.leangen.geantyref

Class AnnotationInvocationHandler

java.lang.Object

io.leangen.geantyref.AnnotationInvocationHandler

All Implemented Interfaces:

Serializable, Annotation, InvocationHandler

class AnnotationInvocationHandler
extends Object
implements Annotation, InvocationHandler, Serializable

An implementation of Annotation that mimics the behavior of normal annotations. It is an InvocationHandler, meant to be used via TypeFactory.annotation(Class, Map).

The constructor checks that the all the elements required by the annotation interface are provided and that the types are compatible. If extra elements are provided, they are ignored. If a value is of an incompatible type is provided or no value is provided for an element without a default value, AnnotationFormatException is thrown.

Note: equals(Object) and hashCode() and implemented as specified by Annotation, so instances are safe to mix with normal annotations.

See Also:

• Annotation

Field Summary

Fields

Modifier and Type	Field	Description
private final Class<? extends Annotation>	annotationType
private final int	hashCode
private static final Map<Class<?>,Class<?>>	primitiveWrapperMap	Maps primitive Classes to their corresponding wrapper Class.
private static final long	serialVersionUID
private final Map<String,Object>	values

Constructor Summary

Constructors

Constructor	Description
AnnotationInvocationHandler(Class<? extends Annotation> annotationType, Map<String,Object> values)

Method Summary

Modifier and Type	Method	Description
Class<? extends Annotation>	annotationType()
private int	calculateHashCode()
private int	calculateHashCode(Object element)
boolean	equals(Object other)	Performs an equality check as described in Annotation.equals(Object).
int	hashCode()	Calculates the hash code of this annotation as described in Annotation.hashCode().
Object	invoke(Object proxy, Method method, Object[] args)
(package private) static Map<String,Object>	normalize(Class<? extends Annotation> annotationType, Map<String,Object> values)
String	toString()

Methods inherited from class java.lang.Object

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

Field Details

serialVersionUID

private static final long serialVersionUID

See Also:

• Constant Field Values

primitiveWrapperMap

private static final Map<Class<?>,Class<?>> primitiveWrapperMap

Maps primitive Classes to their corresponding wrapper Class.

annotationType

private final Class<? extends Annotation> annotationType

values

private final Map<String,Object> values

hashCode

private final int hashCode

Constructor Details

AnnotationInvocationHandler

AnnotationInvocationHandler(Class<? extends Annotation> annotationType,
 Map<String,Object> values)
                     throws AnnotationFormatException

Throws:

AnnotationFormatException

Method Details

normalize

static Map<String,Object> normalize(Class<? extends Annotation> annotationType,
 Map<String,Object> values)
                             throws AnnotationFormatException

Throws:

AnnotationFormatException

invoke

public Object invoke(Object proxy,
 Method method,
 Object[] args)
              throws Throwable

Specified by:

invoke in interface InvocationHandler

Throws:

Throwable

annotationType

public Class<? extends Annotation> annotationType()

Specified by:

annotationType in interface Annotation

equals

public boolean equals(Object other)

Performs an equality check as described in Annotation.equals(Object).

Specified by:

equals in interface Annotation

Overrides:

equals in class Object

Parameters:

other - The object to compare

Returns:

Whether the given object is equal to this annotation or not

See Also:

• Annotation.equals(Object)

hashCode

public int hashCode()

Calculates the hash code of this annotation as described in Annotation.hashCode().

Specified by:

hashCode in interface Annotation

Overrides:

hashCode in class Object

Returns:

The hash code of this annotation.

See Also:

• Annotation.hashCode()

toString

public String toString()

Specified by:

toString in interface Annotation

Overrides:

toString in class Object

calculateHashCode

private int calculateHashCode()

calculateHashCode

private int calculateHashCode(Object element)