Class ModulePackages

java.lang.Object

org.apache.bcel.classfile.Attribute

org.apache.bcel.classfile.ModulePackages

All Implemented Interfaces:

Cloneable, Node

public final class ModulePackages
extends Attribute

This class is derived from Attribute and represents the list of packages that are exported or opened by the Module attribute. There may be at most one ModulePackages attribute in a ClassFile structure.

See Also:

• Attribute

Field Summary

Fields inherited from class Attribute

constant_pool, EMPTY_ARRAY, length, name_index, tag

Modifier and Type	Field	Description
protected ConstantPool	constant_pool	Deprecated. (since 6.0) will be made private; do not access directly, use getter/setter.
static final Attribute[]	EMPTY_ARRAY	Empty array.
protected int	length	Deprecated. (since 6.0) (since 6.0) will be made private; do not access directly, use getter/setter.
protected int	name_index	Deprecated. (since 6.0) will be made private; do not access directly, use getter/setter.
protected byte	tag	Deprecated. (since 6.0) will be made private; do not access directly, use getter/setter.

Constructor Summary

Constructors

Constructor	Description
ModulePackages(int nameIndex, int length, int[] packageIndexTable, ConstantPool constantPool)	Constructs a new ModulePackages.
ModulePackages(ModulePackages c)	Initialize from another object.

Method Summary

Modifier and Type	Method	Description
void	accept(Visitor v)	Called by objects that are traversing the nodes of the tree implicitly defined by the contents of a Java class.
Attribute	copy(ConstantPool constantPool)	Creates a deep copy of this attribute.
void	dump(DataOutputStream file)	Dumps ModulePackages attribute to file stream in binary format.
int	getNumberOfPackages()	Gets the number of packages.
int[]	getPackageIndexTable()	Gets the package index table.
String[]	getPackageNames()	Gets the package names.
void	setPackageIndexTable(int[] packageIndexTable)	Sets the package index table.
String	toString()

Methods inherited from class Attribute

addAttributeReader, addAttributeReader, clone, getConstantPool, getLength, getName, getNameIndex, getTag, println, readAttribute, readAttribute, readAttribute, removeAttributeReader, setConstantPool, setLength, setNameIndex

Modifier and Type	Method	Description
static void	addAttributeReader(String name, AttributeReader attributeReader)	Deprecated. (6.0) Use Attribute.addAttributeReader(String, UnknownAttributeReader) instead.
static void	addAttributeReader(String name, UnknownAttributeReader unknownAttributeReader)	Add an Attribute reader capable of parsing (user-defined) attributes named "name".
Object	clone()	Use copy() if you want to have a deep copy(), that is, with all references copied correctly.
final ConstantPool	getConstantPool()	Gets the constant pool used by this object.
final int	getLength()	Gets the length of attribute field in bytes.
String	getName()	Gets the name of the attribute.
final int	getNameIndex()	Gets the name index in constant pool of attribute name.
final byte	getTag()	Gets the tag of attribute, that is, its type.
protected static void	println(String msg)	Prints a message to stderr if debug mode is enabled.
static Attribute	readAttribute(DataInput dataInput, ConstantPool constantPool)	Reads one attribute using standard eight-byte Code headers.
static Attribute	readAttribute(DataInput dataInput, ConstantPool constantPool, boolean compactCodeHeader)	Reads one attribute using the selected Code header layout.
static Attribute	readAttribute(DataInputStream dataInputStream, ConstantPool constantPool)	Reads one attribute using standard eight-byte Code headers.
static void	removeAttributeReader(String name)	Remove attribute reader
final void	setConstantPool(ConstantPool constantPool)	Sets the constant pool to be used for this object.
final void	setLength(int length)	Sets the length in bytes.
final void	setNameIndex(int nameIndex)	Sets the name index of attribute.

Methods inherited from class Object

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

Constructor Details

ModulePackages

public ModulePackages(int nameIndex,
 int length,
 int[] packageIndexTable,
 ConstantPool constantPool)

Constructs a new ModulePackages.

Parameters:

nameIndex - Index in constant pool.

length - Content length in bytes.

packageIndexTable - Table of indices in constant pool.

constantPool - Array of constants.

ModulePackages

public ModulePackages(ModulePackages c)

Initialize from another object. Note that both objects use the same references (shallow copy). Use copy() for a physical copy.

Parameters:

c - Source to copy.

Method Details

accept

public void accept(Visitor v)

Called by objects that are traversing the nodes of the tree implicitly defined by the contents of a Java class. That is, the hierarchy of methods, fields, attributes, and other elements forms a tree of objects.

Specified by:

accept in interface Node

Specified by:

accept in class Attribute

Parameters:

v - Visitor object.

copy

public Attribute copy(ConstantPool constantPool)

Description copied from class: Attribute

Creates a deep copy of this attribute.

Specified by:

copy in class Attribute

Parameters:

constantPool - constant pool to save.

Returns:

deep copy of this attribute.

dump

public void dump(DataOutputStream file)
          throws IOException

Dumps ModulePackages attribute to file stream in binary format.

Overrides:

dump in class Attribute

Parameters:

file - Output file stream.

Throws:

IOException - Thrown if an I/O error occurs.

getNumberOfPackages

public int getNumberOfPackages()

Gets the number of packages.

Returns:

Length of package table.

getPackageIndexTable

public int[] getPackageIndexTable()

Gets the package index table.

Returns:

array of indices into constant pool of package names.

getPackageNames

public String[] getPackageNames()

Gets the package names.

Returns:

string array of package names.

setPackageIndexTable

public void setPackageIndexTable(int[] packageIndexTable)

Sets the package index table.

Parameters:

packageIndexTable - The list of package indexes Also redefines number_of_packages according to table length.

toString

public String toString()

Overrides:

toString in class Attribute

Returns:

String representation, that is, a list of packages.