org.objectweb.asm

类 AnnotationVisitor

java.lang.Object

org.objectweb.asm.AnnotationVisitor

public abstract class AnnotationVisitor
extends Object

A visitor to visit a Java annotation. The methods of this class must be called in the following order: ( visit | visitEnum | visitAnnotation | visitArray )* visitEnd.

作者:

Eric Bruneton, Eugene Kuleshov

字段概要

字段

限定符和类型	字段和说明
protected int	api The ASM API version implemented by this visitor.
protected AnnotationVisitor	av The annotation visitor to which this visitor must delegate method calls.

构造器概要

构造器

构造器和说明
AnnotationVisitor(int api) Constructs a new AnnotationVisitor.
AnnotationVisitor(int api, AnnotationVisitor annotationVisitor) Constructs a new AnnotationVisitor.

方法概要

限定符和类型	方法和说明
void	visit(String name, Object value) Visits a primitive value of the annotation.
AnnotationVisitor	visitAnnotation(String name, String descriptor) Visits a nested annotation value of the annotation.
AnnotationVisitor	visitArray(String name) Visits an array value of the annotation.
void	visitEnd() Visits the end of the annotation.
void	visitEnum(String name, String descriptor, String value) Visits an enumeration value of the annotation.

从类继承的方法 java.lang.Object

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

字段详细资料

api

protected final int api

The ASM API version implemented by this visitor. The value of this field must be one of Opcodes.ASM4, Opcodes.ASM5, Opcodes.ASM6 or Opcodes.ASM7_EXPERIMENTAL.

av

protected AnnotationVisitor av

The annotation visitor to which this visitor must delegate method calls. May be null.

构造器详细资料

AnnotationVisitor

public AnnotationVisitor(int api)

Constructs a new AnnotationVisitor.

参数:

api - the ASM API version implemented by this visitor. Must be one of Opcodes.ASM4, Opcodes.ASM5, Opcodes.ASM6 or Opcodes.ASM7_EXPERIMENTAL.

AnnotationVisitor

public AnnotationVisitor(int api,
                         AnnotationVisitor annotationVisitor)

Constructs a new AnnotationVisitor.

参数:

api - the ASM API version implemented by this visitor. Must be one of Opcodes.ASM4, Opcodes.ASM5, Opcodes.ASM6 or Opcodes.ASM7_EXPERIMENTAL.

annotationVisitor - the annotation visitor to which this visitor must delegate method calls. May be null.

方法详细资料

visit

public void visit(String name,
                  Object value)

Visits a primitive value of the annotation.

参数:

name - the value name.

value - the actual value, whose type must be Byte, Boolean, Character, Short, Integer , Long, Float, Double, String or Type of Type.OBJECT or Type.ARRAY sort. This value can also be an array of byte, boolean, short, char, int, long, float or double values (this is equivalent to using visitArray(java.lang.String) and visiting each array element in turn, but is more convenient).

visitEnum

public void visitEnum(String name,
                      String descriptor,
                      String value)

Visits an enumeration value of the annotation.

参数:

name - the value name.

descriptor - the class descriptor of the enumeration class.

value - the actual enumeration value.

visitAnnotation

public AnnotationVisitor visitAnnotation(String name,
                                         String descriptor)

Visits a nested annotation value of the annotation.

参数:

name - the value name.

descriptor - the class descriptor of the nested annotation class.

返回:

a visitor to visit the actual nested annotation value, or null if this visitor is not interested in visiting this nested annotation. The nested annotation value must be fully visited before calling other methods on this annotation visitor.

visitArray

public AnnotationVisitor visitArray(String name)

Visits an array value of the annotation. Note that arrays of primitive types (such as byte, boolean, short, char, int, long, float or double) can be passed as value to visit. This is what ClassReader does.

参数:

name - the value name.

返回:

a visitor to visit the actual array value elements, or null if this visitor is not interested in visiting these values. The 'name' parameters passed to the methods of this visitor are ignored. All the array values must be visited before calling other methods on this annotation visitor.

visitEnd

public void visitEnd()

Visits the end of the annotation.