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, ParameterAnnotationsAttribute, SignatureAttribute, SourceFileAttribute, StackMap, StackMapTable, SyntheticAttribute, TypeAnnotationsAttribute

public class AttributeInfo
extends 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

Constructor Summary

Constructors

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

Method Summary

Modifier and Type	Method	Description
AttributeInfo	copy(ConstPool newCp, Map<String,String> classnames)	Makes a copy.
byte[]	get()	Returns the info field of this attribute_info structure.
ConstPool	getConstPool()	Returns a constant pool table.
String	getName()	Returns an attribute name.
int	length()	Returns the length of this attribute_info structure.
void	set(byte[] newinfo)	Sets the info field of this attribute_info structure.

Methods inherited from class java.lang.Object

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

Field Detail

constPool

protected ConstPool constPool

Constructor Detail

AttributeInfo

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

AttributeInfo

protected AttributeInfo(ConstPool cp,
                        String attrname)

AttributeInfo

public AttributeInfo(ConstPool cp,
                     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,
                        DataInputStream in)
                 throws IOException

Throws:

IOException

Method Detail

getName

public 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,
                          Map<String,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.