Package com.db4o.defragment

Class FirstPassCommand

java.lang.Object

com.db4o.defragment.FirstPassCommand

public final class FirstPassCommand
extends java.lang.Object

First step in the defragmenting process: Allocates pointer slots in the target file for each ID (but doesn't fill them in, yet) and registers the mapping from source pointer address to target pointer address.

Constructor Summary

Constructors

Constructor	Description
FirstPassCommand()

Method Summary

Modifier and Type	Method	Description
void	flush(DefragmentServicesImpl context)
void	processBTree(DefragmentServicesImpl context, BTree btree)
void	processClass(DefragmentServicesImpl context, ClassMetadata classMetadata, int id, int classIndexID)
void	processClassCollection(DefragmentServicesImpl context)
void	processObjectSlot(DefragmentServicesImpl context, ClassMetadata classMetadata, int sourceID)

Methods inherited from class java.lang.Object

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

Constructor Detail

FirstPassCommand

public FirstPassCommand()

Method Detail

processClass

public void processClass(DefragmentServicesImpl context,
                         ClassMetadata classMetadata,
                         int id,
                         int classIndexID)

processObjectSlot

public void processObjectSlot(DefragmentServicesImpl context,
                              ClassMetadata classMetadata,
                              int sourceID)

processClassCollection

public void processClassCollection(DefragmentServicesImpl context)
                            throws CorruptionException

Throws:

CorruptionException

processBTree

public void processBTree(DefragmentServicesImpl context,
                         BTree btree)

flush

public void flush(DefragmentServicesImpl context)