com.partnersoft.v3x.io.formats
Class ObjectDump

java.lang.Object
  com.partnersoft.v3x.io.formats.ObjectDump

public class ObjectDump
extends java.lang.Object

This is a very simple variable-width, binary storage format for objects. Essentially, it is WORM - you can dump an object to it, in which case the object is appended, in serialized form, to the data file, and an entry added to the offset file. You can then ask for that object by index number. Not threadsafe. Write a wrapper if you need thread safety.

Compressed by default; optional constructor for uncompressed mode.

Constructor Summary

ObjectDump(java.lang.String filenameBase)
Creates a compressed ObjectDump file for the given filename base (everything but the extensions).

Method Summary

void	appendObject(java.lang.Object victim)
void	clear()
int	getSize()
java.lang.Object	readObject(int index)
void	swap(int a, int b)

Methods inherited from class java.lang.Object

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

Constructor Detail

ObjectDump

public ObjectDump(java.lang.String filenameBase)

Creates a compressed ObjectDump file for the given filename base (everything but the extensions).

Method Detail

getSize

public int getSize()

appendObject

public void appendObject(java.lang.Object victim)
                  throws java.io.IOException

Throws:

java.io.IOException

readObject

public java.lang.Object readObject(int index)
                            throws java.io.IOException

Throws:

java.io.IOException

clear

public void clear()
           throws java.io.IOException

Throws:

java.io.IOException

swap

public void swap(int a,
                 int b)
          throws java.io.IOException

Throws:

java.io.IOException