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Showing posts with label eclipselink. Show all posts
Showing posts with label eclipselink. Show all posts
Tuesday, August 13, 2013

Optimizing Java Serialization - Java vs XML vs JSON vs Kryo vs POF

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Perhaps I'm naive, but I always thought Java serialization must surely be the fastest and most efficient way to serialize Java objects i...
16 comments:
Thursday, June 20, 2013

EclipseLink supports HQL and several advanced new JPQL features

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EclipseLink 2.5 added several new JPQL features and supported syntax. These include: HQL compatibility Array expressions Hierarchical sele...
8 comments:
Monday, June 10, 2013

Cool performance features of EclipseLink 2.5

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The main goal of the EclipseLink 2.5 release was the support of the JPA 2.1 specification, as EclipseLink 2.5 was the reference implementati...
3 comments:
Tuesday, May 28, 2013

Batch Writing, and Dynamic vs Parametrized SQL, how well does your database perform?

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One of the most effective database optimizations is batch writing. Batch writing is supported by most modern databases and part of the JDBC...
4 comments:
Thursday, March 7, 2013

But what if I'm not querying by id? (database and cache indexes)

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Most data models define a sequence generated numeric primary key. This is the most efficient key to use as it is a single efficient guarant...
6 comments:
Thursday, January 3, 2013

Got Cache? improve data access by 97,322%

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Caching is the most valuable optimization one can make in software development. Making something run faster is nice, but it can never beat ...
1 comment:
Tuesday, November 13, 2012

EclipseLink 15x faster than other JPA providers

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I'm sorry to disappoint those of you looking to see some canned benchmark showing how EclipseLink dominates over all competitors in perf...
4 comments:
Tuesday, May 15, 2012

JPQL vs SQL, why not have both

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One of the most common questions I see on JPA, is users wanting to know how to write some specific SQL query as a JPQL query. Some of the t...
13 comments:
Monday, April 23, 2012

Objects vs Data, and Filtering a JOIN FETCH

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JPA deals with objects, and SQL deals with rows. Some developers love JPA because it allows them to use objects in an object-oriented fashi...
1 comment:
Monday, April 2, 2012

EclipseLink JPA supports MongoDB

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EclipseLink 2.4 will support JPA access to NoSQL databases. This support is already part of the EclipseLink development trunk and can be tri...
4 comments: