Package org.eclipse.lyo.trs.client.handlers

Class ConcurrentTrsProviderHandler

java.lang.Object

org.eclipse.lyo.trs.client.handlers.ConcurrentTrsProviderHandler

All Implemented Interfaces:

IProviderHandler

public class ConcurrentTrsProviderHandler
extends Object
implements IProviderHandler

Specialization fothe TRS provider class which supports multithreading when it comes to the processing of the base members and the change events. Additionally, processes the sparql updates as a single transaction. In case the sparql update transaction is not successful, then the indexing of the base members is restarted all over again

Author:

Omar

Constructor Summary

Constructors

Constructor	Description
ConcurrentTrsProviderHandler(URI trsUriBase, ITrackedResourceClient trsClient, IProviderEventHandler handler)

Method Summary

Modifier and Type	Method	Description
boolean	fetchRemoteChangeLogs(ChangeLog currentChangeLog, List<ChangeLog> changeLogs)	Request the pages of the change log from the TRS provider sequentially through the traversal of the paging information until the last processed change event is found.
void	update()

Methods inherited from class java.lang.Object

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

Constructor Details

ConcurrentTrsProviderHandler

public ConcurrentTrsProviderHandler(URI trsUriBase,
 ITrackedResourceClient trsClient,
 IProviderEventHandler handler)

Method Details

update

public void update()

Specified by:

update in interface IProviderHandler

fetchRemoteChangeLogs

public boolean fetchRemoteChangeLogs(ChangeLog currentChangeLog,
 List<ChangeLog> changeLogs)

Request the pages of the change log from the TRS provider sequentially through the traversal of the paging information until the last processed change event is found. Add the fetched change logs to the changeLogs argument. In case the last processed change event is found true is returned otherwise false is returned

Parameters:

currentChangeLog - the first change log from which the next page will be retrieved to retrieve the other pages of the change log

changeLogs - the list of change logs which will be filled with the pages of the change log

Returns:

true if the last processed change event is found, false otherwise