Comments for ~pperalta

Comment on Log file management in Coherence using Log4J by Phil Whelan

Phil Whelan — Fri, 20 Nov 2009 17:39:20 +0000

Exactly what I needed. Thanks!

Comment on Coherence 3.5: POF Extractor/Updater by Patrick Peralta

Patrick Peralta — Fri, 30 Oct 2009 12:51:27 +0000

Hi Bansi,

Using a POF extractor/updater implies that you will be querying or modifying a field inside of your object, and you desire to do so without deserializing the object. For your example, you want to issue a query into the cache for the entire value itself (instead of just a field in the value.) In this case you would issue a query like so:

cache.keySet(new EqualsFilter(IdentityExtractor.INSTANCE, object))

and you would get back a set of keys that contain this object.

Comment on Coherence 3.5: POF Extractor/Updater by bansi

bansi — Thu, 29 Oct 2009 16:06:25 +0000

How would i query on object itself something similar to Hibernate detached criteria. addCriteria(object.class)

Comment on Coherence query cache technique using refresh-ahead by Patrick Peralta

Patrick Peralta — Sat, 03 Oct 2009 23:59:23 +0000

Hi Vikas,

Thanks for your comments. There is some overlapping functionality between this and CQC. Here are the ways in which they differ:

1. CQC will register a map listener internally, thus ensuring the client gets the update right away, whereas the query cache will be stale for a period of time.

2. CQC only accepts one filter at a time, the query cache can be used to cache many filters.

The CQC is a good choice for clients that need real time access to a subset of data (defined by a single filter), whereas the query cache is a good option for caching commonly executed queries.

Thanks,
Patrick

Comment on Coherence query cache technique using refresh-ahead by vikas

vikas — Fri, 02 Oct 2009 13:57:15 +0000

Thanks for sharing this. I like your approach but i thinks its same as CQC( Continious query cache).

Just wondering how is this Continious query cache(CQC).
Refernces: http://wiki.tangosol.com/display/COH32UG/Continuous+Query

Please let me know your thoughts on this.

Regards
Vikas

Comment on Next NY Coherence SIG on October 1st by ~pperalta » Blog Archive » Oracle Open World: The most Coherence content under one roof!

Tue, 22 Sep 2009 21:26:58 +0000

[...] Home « Next NY Coherence SIG on October 1st [...]

Comment on How to get an OutOfMemoryError without trying by Patrick Peralta

Patrick Peralta — Mon, 21 Sep 2009 16:11:20 +0000

Actually I don’t get an OOME on 1.5 either, just the infinite loop. I can get it to happen on 1.6. I have not tried it on other platforms, although the OS X JDK is a derivative of Sun’s.

Comment on How to get an OutOfMemoryError without trying by Salman Ahmed

Salman Ahmed — Mon, 21 Sep 2009 15:28:01 +0000

Patrick:

I am NOT able to duplicate this OutOfMemoryError using JDK 1.5 on Windows (1.5.0_20) nor on Linux (1.5.0_19). What gives??!! Is this specific to the OS X JRE?

Comment on Two New Coherence Blogs by ~pperalta » Blog Archive » Next NY Coherence SIG on October 1st

~pperalta » Blog Archive » Next NY Coherence SIG on October 1st — Thu, 17 Sep 2009 12:35:36 +0000

[...] from today) and it promises to be a great event. For those of you who follow my blog, I previously introduced these two gentlemen a few months ago when they started [...]

Comment on NFJS Boston Day 2 by Patrick Peralta

Patrick Peralta — Tue, 15 Sep 2009 22:21:25 +0000

Yes, and yes. Both typos were corrected; thanks for the feedback!