org.openstreetmap.osmosis.core.merge.v0_6
Class ChangeSimplifier

java.lang.Object
  extended by org.openstreetmap.osmosis.core.merge.v0_6.ChangeSimplifier
All Implemented Interfaces:
Completable, Releasable, Task, ChangeSink, ChangeSinkChangeSource, ChangeSource

public class ChangeSimplifier
extends java.lang.Object
implements ChangeSinkChangeSource

Looks at a sorted change stream and condenses multiple changes for a single entity into a single change.

Author:
Brett Henderson

Constructor Summary
ChangeSimplifier()
          Creates a new instance.
 
Method Summary
 void complete()
          Ensures that all information is fully persisted.
 void process(ChangeContainer change)
          Process the change.
 void release()
          Performs resource cleanup tasks such as closing files, or database connections.
 void setChangeSink(ChangeSink changeSink)
          Sets the change sink to send data to.
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

ChangeSimplifier

public ChangeSimplifier()
Creates a new instance.

Method Detail

process

public void process(ChangeContainer change)
Process the change.

Specified by:
process in interface ChangeSink
Parameters:
change - The change to be processed.

complete

public void complete()
Ensures that all information is fully persisted. This includes database commits, file buffer flushes, etc. Implementations must call complete on any nested Completable objects. Where the releasable method of a Releasable class should be called within a finally block, this method should typically be the final statement within the try block.

Specified by:
complete in interface Completable

release

public void release()
Performs resource cleanup tasks such as closing files, or database connections. This must be called after all processing is complete and may be called multiple times. Implementations must call release on any nested Releasable objects. It should be called within a finally block to ensure it is called in exception scenarios.

Specified by:
release in interface Releasable

setChangeSink

public void setChangeSink(ChangeSink changeSink)
Sets the change sink to send data to.

Specified by:
setChangeSink in interface ChangeSource
Parameters:
changeSink - The sink for receiving all produced data.