Package javassist.bytecode

Class AttributeInfo

java.lang.Object

javassist.bytecode.AttributeInfo

Direct Known Subclasses:

AnnotationDefaultAttribute, AnnotationsAttribute, BootstrapMethodsAttribute, CodeAttribute, ConstantAttribute, DeprecatedAttribute, EnclosingMethodAttribute, ExceptionsAttribute, InnerClassesAttribute, LineNumberAttribute, LocalVariableAttribute, MethodParametersAttribute, NestHostAttribute, NestMembersAttribute, ParameterAnnotationsAttribute, SignatureAttribute, SourceFileAttribute, StackMap, StackMapTable, SyntheticAttribute, TypeAnnotationsAttribute

public class AttributeInfo
extends java.lang.Object

attribute_info structure.

See Also:

ClassFile.getAttribute(String), MethodInfo.getAttribute(String), FieldInfo.getAttribute(String)

Field Summary

Fields

Modifier and Type	Field	Description
protected ConstPool	constPool
(package private) byte[]	info
(package private) int	name

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	AttributeInfo(ConstPool cp, int attrname, byte[] attrinfo)
protected	AttributeInfo(ConstPool cp, int n, java.io.DataInputStream in)
protected	AttributeInfo(ConstPool cp, java.lang.String attrname)
	AttributeInfo(ConstPool cp, java.lang.String attrname, byte[] attrinfo)	Constructs an attribute_info structure.

Method Summary

Modifier and Type	Method	Description
AttributeInfo	copy(ConstPool newCp, java.util.Map<java.lang.String,java.lang.String> classnames)	Makes a copy.
(package private) static java.util.List<AttributeInfo>	copyAll(java.util.List<AttributeInfo> attributes, ConstPool cp)
byte[]	get()	Returns the info field of this attribute_info structure.
ConstPool	getConstPool()	Returns a constant pool table.
(package private) static int	getLength(java.util.List<AttributeInfo> attributes)
java.lang.String	getName()	Returns an attribute name.
(package private) static void	getRefClasses(java.util.List<AttributeInfo> attributes, java.util.Map<java.lang.String,java.lang.String> classnames)
(package private) void	getRefClasses(java.util.Map<java.lang.String,java.lang.String> classnames)
int	length()	Returns the length of this attribute_info structure.
(package private) static AttributeInfo	lookup(java.util.List<AttributeInfo> attributes, java.lang.String name)
(package private) static AttributeInfo	read(ConstPool cp, java.io.DataInputStream in)
(package private) static AttributeInfo	remove(java.util.List<AttributeInfo> attributes, java.lang.String name)
(package private) void	renameClass(java.lang.String oldname, java.lang.String newname)
(package private) static void	renameClass(java.util.List<AttributeInfo> attributes, java.lang.String oldname, java.lang.String newname)
(package private) static void	renameClass(java.util.List<AttributeInfo> attributes, java.util.Map<java.lang.String,java.lang.String> classnames)
(package private) void	renameClass(java.util.Map<java.lang.String,java.lang.String> classnames)
void	set(byte[] newinfo)	Sets the info field of this attribute_info structure.
(package private) void	write(java.io.DataOutputStream out)
(package private) static void	writeAll(java.util.List<AttributeInfo> attributes, java.io.DataOutputStream out)

Methods inherited from class java.lang.Object

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

Field Detail

constPool

protected ConstPool constPool

name

int name

info

byte[] info

Constructor Detail

AttributeInfo

protected AttributeInfo(ConstPool cp,
                        int attrname,
                        byte[] attrinfo)

AttributeInfo

protected AttributeInfo(ConstPool cp,
                        java.lang.String attrname)

AttributeInfo

public AttributeInfo(ConstPool cp,
                     java.lang.String attrname,
                     byte[] attrinfo)

Constructs an attribute_info structure.

Parameters:

cp - constant pool table

attrname - attribute name

attrinfo - info field of attribute_info structure.

AttributeInfo

protected AttributeInfo(ConstPool cp,
                        int n,
                        java.io.DataInputStream in)
                 throws java.io.IOException

Throws:

java.io.IOException

Method Detail

read

static AttributeInfo read(ConstPool cp,
                          java.io.DataInputStream in)
                   throws java.io.IOException

Throws:

java.io.IOException

getName

public java.lang.String getName()

Returns an attribute name.

getConstPool

public ConstPool getConstPool()

Returns a constant pool table.

length

public int length()

Returns the length of this attribute_info structure. The returned value is attribute_length + 6.

get

public byte[] get()

Returns the info field of this attribute_info structure.

This method is not available if the object is an instance of CodeAttribute.

set

public void set(byte[] newinfo)

Sets the info field of this attribute_info structure.

This method is not available if the object is an instance of CodeAttribute.

copy

public AttributeInfo copy(ConstPool newCp,
                          java.util.Map<java.lang.String,java.lang.String> classnames)

Makes a copy. Class names are replaced according to the given Map object.

Parameters:

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

classnames - pairs of replaced and substituted class names.

write

void write(java.io.DataOutputStream out)
    throws java.io.IOException

Throws:

java.io.IOException

getLength

static int getLength(java.util.List<AttributeInfo> attributes)

lookup

static AttributeInfo lookup(java.util.List<AttributeInfo> attributes,
                            java.lang.String name)

remove

static AttributeInfo remove(java.util.List<AttributeInfo> attributes,
                            java.lang.String name)

writeAll

static void writeAll(java.util.List<AttributeInfo> attributes,
                     java.io.DataOutputStream out)
              throws java.io.IOException

Throws:

java.io.IOException

copyAll

static java.util.List<AttributeInfo> copyAll(java.util.List<AttributeInfo> attributes,
                                             ConstPool cp)

renameClass

void renameClass(java.lang.String oldname,
                 java.lang.String newname)

renameClass

void renameClass(java.util.Map<java.lang.String,java.lang.String> classnames)

renameClass

static void renameClass(java.util.List<AttributeInfo> attributes,
                        java.lang.String oldname,
                        java.lang.String newname)

renameClass

static void renameClass(java.util.List<AttributeInfo> attributes,
                        java.util.Map<java.lang.String,java.lang.String> classnames)

getRefClasses

void getRefClasses(java.util.Map<java.lang.String,java.lang.String> classnames)

getRefClasses

static void getRefClasses(java.util.List<AttributeInfo> attributes,
                          java.util.Map<java.lang.String,java.lang.String> classnames)