org.objectweb.asm.attrs

Class RuntimeInvisibleParameterAnnotations

Known Direct Subclasses:
ASMRuntimeInvisibleParameterAnnotations

public class RuntimeInvisibleParameterAnnotations
extends Attribute

The RuntimeInvisibleParameterAnnotations attribute is similar to the RuntimeVisibleParameterAnnotations attribute, except that the annotations represented by a RuntimeInvisibleParameterAnnotations attribute must not be made available for return by reflective APIs, unless the JVM has specifically been instructed to retain these annotations via some implementation-specific mechanism such as a command line flag. In the absence of such instructions, the JVM ignores this attribute.

The RuntimeInvisibleParameterAnnotations attribute is a variable length attribute in the attributes table of the method_info structure. The RuntimeInvisibleParameterAnnotations attribute records runtime-invisible Java programming language annotations on the parameters of the corresponding method. Each method_info structure may contain at most one RuntimeInvisibleParameterAnnotations attribute, which records all the runtime-invisible Java programming language annotations on the parameters of the corresponding method.

The RuntimeInvisibleParameterAnnotations attribute has the following format:

   RuntimeInvisibleParameterAnnotations_attribute {
     u2 attribute_name_index;
     u4 attribute_length;
     u1 num_parameters;
     {
       u2 num_annotations;
       annotation annotations[num_annotations];
     } parameter_annotations[num_parameters];
   }
 
The items of the RuntimeInvisibleParameterAnnotations structure are as follows:
attribute_name_index
The value of the attribute_name_index item must be a valid index into the constant_pool table. The constant_pool entry at that index must be a CONSTANT_Utf8_info structure representing the string "RuntimeInvisibleParameterAnnotations".
attribute_length
The value of the attribute_length item indicates the length of the attribute, excluding the initial six bytes. The value of the attribute_length item is thus dependent on the number of parameters, the number of runtime-invisible annotations on each parameter, and their values.
num_parameters
The value of the num_parameters item gives the number of parameters of the method represented by the method_info structure on which the annotation occurs. (This duplicates information that could be extracted from the method descriptor.)
parameter_annotations
Each value of the parameter_annotations table represents all of the runtime-invisible annotations on a single parameter. The sequence of values in the table corresponds to the sequence of parameters in the method signature. Each parameter_annotations entry contains the following two items:
num_annotations
The value of the num_annotations item indicates the number of runtime-invisible annotations on the parameter corresponding to the sequence number of this parameter_annotations element.
annotations
Each value of the annotations table represents a single runtime-invisible annotation on the parameter corresponding to the sequence number of this parameter_annotations element.

Author:
Eugene Kuleshov

See Also:
JSR 175 : A Metadata Facility for the Java Programming Language

Field Summary

List
parameters
List of Lists that contains Annotation for each method parameter.

Fields inherited from class org.objectweb.asm.Attribute

next, type

Constructor Summary

RuntimeInvisibleParameterAnnotations()

Method Summary

protected Attribute
read(ClassReader cr, int off, int len, char[] buf, int codeOff, Label[] labels)
String
toString()
protected ByteVector
write(ClassWriter cw, byte[] code, int len, int maxStack, int maxLocals)

Methods inherited from class org.objectweb.asm.Attribute

getLabels, isUnknown, read, write

Field Details

parameters

public List parameters
List of Lists that contains Annotation for each method parameter.

Constructor Details

RuntimeInvisibleParameterAnnotations

public RuntimeInvisibleParameterAnnotations()

Method Details

read

protected Attribute read(ClassReader cr,
                         int off,
                         int len,
                         char[] buf,
                         int codeOff,
                         Label[] labels)


toString

public String toString()


write

protected ByteVector write(ClassWriter cw,
                           byte[] code,
                           int len,
                           int maxStack,
                           int maxLocals)
Overrides:
write in interface Attribute