com.vladium.jcd.cls
Class InterfaceCollection

java.lang.Object
  com.vladium.jcd.cls.InterfaceCollection

All Implemented Interfaces:

IInterfaceCollection, IClassFormatOutput, java.lang.Cloneable

final class InterfaceCollection
extends java.lang.Object
implements IInterfaceCollection

Author:

(C) 2001, Vlad Roubtsov

Field Summary

private IntVector

m_interfaces

Constructor Summary

InterfaceCollection(int capacity)

Method Summary

void	accept(IClassDefVisitor visitor, java.lang.Object ctx)
int	add(int interface_index) Appends a new superinterface pointer to the collection.
java.lang.Object	clone() Performs a deep copy.
int	get(int offset) Returns the CONSTANT_Class_info constant pool index for offset'th direct superinterface.
int	set(int offset, int interface_index) Replaces superinterface pointer number 'offset' with new value 'interface_index'.
int	size() Returns the number of direct superinterfaces for this class/interface.
void	writeInClassFormat(UDataOutputStream out)

Methods inherited from class java.lang.Object

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

Field Detail

m_interfaces

private IntVector m_interfaces

Constructor Detail

InterfaceCollection

InterfaceCollection(int capacity)

Method Detail

get

public int get(int offset)

Description copied from interface: IInterfaceCollection

Returns the CONSTANT_Class_info constant pool index for offset'th direct superinterface.

Specified by:

get in interface IInterfaceCollection

Parameters:

offset - superinterface number [must be in [0, size()) range]

Returns:

constant pool index [always positive]

size

public int size()

Description copied from interface: IInterfaceCollection

Returns the number of direct superinterfaces for this class/interface.

Specified by:

size in interface IInterfaceCollection

Returns:

int number of direct superinterfaces [can be 0]

clone

public java.lang.Object clone()

Performs a deep copy.

Specified by:

clone in interface IInterfaceCollection

Overrides:

clone in class java.lang.Object

writeInClassFormat

public void writeInClassFormat(UDataOutputStream out)
                        throws java.io.IOException

Specified by:

writeInClassFormat in interface IClassFormatOutput

Throws:

java.io.IOException

accept

public void accept(IClassDefVisitor visitor,
                   java.lang.Object ctx)

Specified by:

accept in interface IInterfaceCollection

add

public int add(int interface_index)

Description copied from interface: IInterfaceCollection

Appends a new superinterface pointer to the collection. No duplicate checks are made.

Specified by:

add in interface IInterfaceCollection

Parameters:

interface_index - constant pool index [must be positive; input not validated]

Returns:

offset of the new pointer [same as IInterfaceCollection.size()-1 when called after this method]

set

public int set(int offset,
               int interface_index)

Description copied from interface: IInterfaceCollection

Replaces superinterface pointer number 'offset' with new value 'interface_index'. No duplicate checks are made. It is the responsibility of the caller to ensure that the relevant CONSTANT_Class_info descriptor will be found in the constant pool, in the slot pointed to by 'interface_index'.

Specified by:

set in interface IInterfaceCollection

Parameters:

offset - offset of the superinterface pointer to replace [must be in [0, size()) range]

interface_index - constant pool index [must be positive; input not validated]

Returns:

previous value at the given index [always positive]