xapi.bytecode.annotation

Class AnnotationsAttribute

java.lang.Object

xapi.bytecode.attributes.AttributeInfo

xapi.bytecode.annotation.AnnotationsAttribute

public class AnnotationsAttribute
extends AttributeInfo

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	AnnotationsAttribute.Copier
static class	AnnotationsAttribute.Parser
static class	AnnotationsAttribute.Walker

Field Summary

Fields

Modifier and Type	Field and Description
static String	invisibleTag The name of the RuntimeInvisibleAnnotations attribute.
static String	visibleTag The name of the RuntimeVisibleAnnotations attribute.

Fields inherited from class xapi.bytecode.attributes.AttributeInfo

constPool, info, name

Constructor Summary

Constructors

Constructor and Description
AnnotationsAttribute(ConstPool cp, int n, DataInput in)
AnnotationsAttribute(ConstPool cp, String attrname) Constructs an empty Runtime(In)VisibleAnnotations_attribute.
AnnotationsAttribute(ConstPool cp, String attrname, byte[] info) Constructs a Runtime(In)VisibleAnnotations_attribute.

Method Summary

Modifier and Type	Method and Description
void	addAnnotation(Annotation annotation) Adds an annotation.
AttributeInfo	copy(ConstPool newCp, Map<?,?> classnames) Copies this attribute and returns a new copy.
Annotation	getAnnotation(String type) Parses the annotations and returns a data structure representing the annotation with the specified type.
Annotation[]	getAnnotations() Parses the annotations and returns a data structure representing that parsed annotations.
int	numAnnotations() Returns num_annotations.
void	setAnnotation(Annotation annotation) Changes the annotations.
void	setAnnotations(Annotation[] annotations) Changes the annotations represented by this object according to the given array of Annotation objects.
String	toString() Returns a string representation of this object.

Methods inherited from class xapi.bytecode.attributes.AttributeInfo

copyAll, get, getConstPool, getLength, getName, length, lookup, read, remove, renameClass, renameClass, set, writeAll

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

visibleTag

public static final String visibleTag

The name of the RuntimeVisibleAnnotations attribute.

See Also:

Constant Field Values

invisibleTag

public static final String invisibleTag

The name of the RuntimeInvisibleAnnotations attribute.

See Also:

Constant Field Values

Constructor Detail

AnnotationsAttribute

public AnnotationsAttribute(ConstPool cp,
                            String attrname,
                            byte[] info)

Constructs a Runtime(In)VisibleAnnotations_attribute.

Parameters:

cp - constant pool

attrname - attribute name (visibleTag or invisibleTag).

info - the contents of this attribute. It does not include attribute_name_index or attribute_length.

AnnotationsAttribute

public AnnotationsAttribute(ConstPool cp,
                            String attrname)

Constructs an empty Runtime(In)VisibleAnnotations_attribute. A new annotation can be later added to the created attribute by setAnnotations().

Parameters:

cp - constant pool

attrname - attribute name (visibleTag or invisibleTag).

See Also:

setAnnotations(Annotation[])

AnnotationsAttribute

public AnnotationsAttribute(ConstPool cp,
                            int n,
                            DataInput in)
                     throws IOException

Parameters:

n - the attribute name.

Throws:

IOException

Method Detail

numAnnotations

public int numAnnotations()

Returns num_annotations.

copy

public AttributeInfo copy(ConstPool newCp,
                          Map<?,?> classnames)

Copies this attribute and returns a new copy.

Overrides:

copy in class AttributeInfo

Parameters:

newCp - the constant pool table used by the new copy.

classnames - pairs of replaced and substituted class names.

getAnnotation

public Annotation getAnnotation(String type)

Parses the annotations and returns a data structure representing the annotation with the specified type. See also getAnnotations() as to the returned data structure.

Parameters:

type - the annotation type.

Returns:

null if the specified annotation type is not included.

See Also:

getAnnotations()

addAnnotation

public void addAnnotation(Annotation annotation)

Adds an annotation. If there is an annotation with the same type, it is removed before the new annotation is added.

Parameters:

annotation - the added annotation.

getAnnotations

public Annotation[] getAnnotations()

Parses the annotations and returns a data structure representing that parsed annotations. Note that changes of the node values of the returned tree are not reflected on the annotations represented by this object unless the tree is copied back to this object by setAnnotations().

See Also:

setAnnotations(Annotation[])

setAnnotations

public void setAnnotations(Annotation[] annotations)

Changes the annotations represented by this object according to the given array of Annotation objects.

Parameters:

annotations - the data structure representing the new annotations.

setAnnotation

public void setAnnotation(Annotation annotation)

Changes the annotations. A call to this method is equivalent to:

setAnnotations(new Annotation[] { annotation })

Parameters:

annotation - the data structure representing the new annotation.

toString

public String toString()

Returns a string representation of this object.

Overrides:

toString in class Object