类 AnnotationVisitor
- java.lang.Object
- org.springframework.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 修饰符和类型 字段 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 说明 AnnotationVisitor(int api)
Constructs a newAnnotationVisitor
.AnnotationVisitor(int api, AnnotationVisitor annotationVisitor)
Constructs a newAnnotationVisitor
.
方法概要
所有方法 实例方法 具体方法 修饰符和类型 方法 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.
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 ofOpcodes.ASM4
,Opcodes.ASM5
,Opcodes.ASM6
orOpcodes.ASM7
.
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 newAnnotationVisitor
.- 参数:
api
- the ASM API version implemented by this visitor. Must be one ofOpcodes.ASM4
,Opcodes.ASM5
,Opcodes.ASM6
orOpcodes.ASM7
.
AnnotationVisitor
public AnnotationVisitor(int api, AnnotationVisitor annotationVisitor)
Constructs a newAnnotationVisitor
.- 参数:
api
- the ASM API version implemented by this visitor. Must be one ofOpcodes.ASM4
,Opcodes.ASM5
,Opcodes.ASM6
orOpcodes.ASM7
.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 beByte
,Boolean
,Character
,Short
,Integer
,Long
,Float
,Double
,String
orType
ofType.OBJECT
orType.ARRAY
sort. This value can also be an array of byte, boolean, short, char, int, long, float or double values (this is equivalent to usingvisitArray(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 tovisit
. This is whatClassReader
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.