java.lang.reflect
Class AccessibleObject
- AnnotatedElement
This class is the superclass of various reflection classes, and
allows sufficiently trusted code to bypass normal restrictions to
do necessary things like invoke private methods outside of the
class during Serialization. If you don't have a good reason
to mess with this, don't try. Fortunately, there are adequate
security checks before you can set a reflection object as accessible.
AccessibleObject()- Only the three reflection classes that extend this can create an
accessible object.
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clone, equals, extends Object> getClass, finalize, hashCode, notify, notifyAll, toString, wait, wait, wait |
AccessibleObject
protected AccessibleObject()
Only the three reflection classes that extend this can create an
accessible object. This is not serializable for security reasons.
extends Annotation> T getAnnotation
public extends Annotation> T getAnnotation(Class annotationClass)
Returns the element's annotation for the specified annotation type,
or null if no such annotation exists.
- extends Annotation> T getAnnotation in interface AnnotatedElement
annotationClass - the type of annotation to look for.
- this element's annotation for the specified type, or
null if no such annotation exists.
getAnnotations
public Annotation[] getAnnotations()
Returns all annotations associated with the element. If there are
no annotations associated with the element, then a zero-length array
will be returned. The returned array may be modified by the client
code, but this will have no effect on the annotation content of the
element, and hence no effect on the return value of this method for
future callers.
- getAnnotations in interface AnnotatedElement
- this element's annotations.
getDeclaredAnnotations
public Annotation[] getDeclaredAnnotations()
Returns all annotations directly defined by the element. If there are
no annotations directly associated with the element, then a zero-length
array will be returned. The returned array may be modified by the client
code, but this will have no effect on the annotation content of this
class, and hence no effect on the return value of this method for
future callers.
- getDeclaredAnnotations in interface AnnotatedElement
- the annotations directly defined by the element.
isAccessible
public boolean isAccessible()
Return the accessibility status of this object.
- true if this object bypasses security checks
isAnnotationPresent
public boolean isAnnotationPresent(Annotation> annotationClass)
Returns true if an annotation for the specified type is associated
with the element. This is primarily a short-hand for using marker
annotations.
- isAnnotationPresent in interface AnnotatedElement
annotationClass - the type of annotation to look for.
- true if an annotation exists for the specified type.
setAccessible
public void setAccessible(boolean flag)
Sets the accessibility flag for this reflection object. If a security
manager exists, it is checked for
ReflectPermission("suppressAccessChecks").
It is forbidden to set the accessibility flag to true on any constructor for
java.lang.Class. This will result in a SecurityException.
flag - the desired state of accessibility, true to bypass security
setAccessible
public static void setAccessible(AccessibleObject[] array,
boolean flag) Convenience method to set the flag on a number of objects with a single
security check. If a security manager exists, it is checked for
ReflectPermission("suppressAccessChecks").
It is forbidden to set the accessibility flag to true on any constructor
for java.lang.Class. This will result in a SecurityException. If the
SecurityException is thrown for any of the passed AccessibleObjects,
the accessibility flag will be set on AccessibleObjects in the array prior
to the one which resulted in the exception.
array - the array of accessible objectsflag - the desired state of accessibility, true to bypass security
java.lang.reflect.AccessibleObject
Copyright (C) 2001, 2005, 2006 Free Software Foundation, Inc.
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