org.apache.bcel.classfile

Class ConstantString

java.lang.Object

org.apache.bcel.classfile.Constant

org.apache.bcel.classfile.ConstantString

All Implemented Interfaces:

Cloneable, ConstantObject, Node

public final class ConstantString
extends Constant
implements ConstantObject

This class is derived from the abstract Constant and represents a reference to a String object.

See Also:

Constant

Field Summary

Fields inherited from class org.apache.bcel.classfile.Constant

tag

Constructor Summary

Constructors

Constructor and Description
ConstantString(ConstantString c) Initialize from another object.
ConstantString(int string_index)

Method Summary

Modifier and Type	Method and Description
void	accept(Visitor v) Called by objects that are traversing the nodes of the tree implicitely defined by the contents of a Java class.
void	dump(DataOutputStream file) Dump constant field reference to file stream in binary format.
String	getBytes(ConstantPool cp)
Object	getConstantValue(ConstantPool cp)
int	getStringIndex()
void	setStringIndex(int string_index)
String	toString()

Methods inherited from class org.apache.bcel.classfile.Constant

clone, copy, equals, getComparator, getTag, hashCode, readConstant, setComparator

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

ConstantString

public ConstantString(ConstantString c)

Initialize from another object.

ConstantString

public ConstantString(int string_index)

Parameters:

string_index - Index of Constant_Utf8 in constant pool

Method Detail

accept

public void accept(Visitor v)

Called by objects that are traversing the nodes of the tree implicitely defined by the contents of a Java class. I.e., the hierarchy of methods, fields, attributes, etc. spawns a tree of objects.

Specified by:

accept in interface Node

Specified by:

accept in class Constant

Parameters:

v - Visitor object

dump

public void dump(DataOutputStream file)
          throws IOException

Dump constant field reference to file stream in binary format.

Specified by:

dump in class Constant

Parameters:

file - Output file stream

Throws:

IOException

getStringIndex

public int getStringIndex()

Returns:

Index in constant pool of the string (ConstantUtf8).

setStringIndex

public void setStringIndex(int string_index)

Parameters:

string_index - the index into the constant of the string value

toString

public String toString()

Overrides:

toString in class Constant

Returns:

String representation.

getConstantValue

public Object getConstantValue(ConstantPool cp)

Specified by:

getConstantValue in interface ConstantObject

Returns:

String object

getBytes

public String getBytes(ConstantPool cp)

Returns:

dereferenced string