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Browse : Java : Java Persistence Performance

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15 results.
Slow factory.createEntityManager() with EcliseLink
by sirmad posted Aug 7 2015, 5:04
Replies: 3 | Views: 1960
Bulk inserts cause OOM even if done in batches
by pranahata posted Nov 26 2014, 23:38
Replies: 3 | Views: 1954
EclipseLink supports HQL and several advanced new JPQL features
by jamesssss posted Nov 21 2014, 7:22
Replies: 0 | Views: 2200
Cool performance features of EclipseLink 2.5
by jamesssss posted Nov 21 2014, 6:58
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 implementation for JPA 2.1. For a list of JPA 2.1 features look here, or here.

Most of the features that went into the release were to support JPA 2.1 features, so there was not a lot of development time for oth

Tags: jpa, eclipselink, performance
Replies: 0, Views: 2042, today: 0, week: 5, month: 18
Thumbs up: 0, thumbs down: 0, stars: 0.0
Cool performance features of EclipseLink 2.5
by jamesssss posted Nov 21 2014, 6:58
Replies: 0 | Views: 2042
Batch Writing, and Dynamic vs Parametrized SQL, how well does your database perform?
by jamesssss posted Nov 21 2014, 6:56
One of the most effective database optimizations is batch writing. Batch writing is supported by most modern databases and part of the JDBC standard and is supported by most JPA providers.

Normal database access consists of sending each DML (insert, update, delete) statement to the database in a separate database/network access. Each database access has a certain amount of overhead to it, and the database must process each statement independently. Batch writing has two forms, dynamic an

Tags: eclipselink, jpa, batch, parametrized sql, database, postgresql, oracle, db2, mysql, derby, sql server, h2, hsql
Replies: 0, Views: 1692, today: 0, week: 4, month: 18
Thumbs up: 0, thumbs down: 0, stars: 0.0
Batch Writing, and Dynamic vs Parametrized SQL, how well does your database perform?
by jamesssss posted Nov 21 2014, 6:56
Replies: 0 | Views: 1692
But what if I'm not querying by id? (database and cache indexes)
by jamesssss posted Nov 21 2014, 6:29
Replies: 0 | Views: 1974
Got Cache? improve data access by 97,322%
by jamesssss posted Sep 20 2014, 17:55
Replies: 0 | Views: 1841
EclipseLink 15x faster than other JPA providers
by jamesssss posted Sep 20 2014, 17:54
Replies: 0 | Views: 2385
JPQL vs SQL, why not have both
by jamesssss posted Sep 20 2014, 17:53
Replies: 0 | Views: 2074
Objects vs Data, and Filtering a JOIN FETCH
by jamesssss posted Sep 20 2014, 17:53
Replies: 0 | Views: 1983
EclipseLink JPA supports MongoDB
by jamesssss posted Sep 20 2014, 17:52
EclipseLink 2.4 will support JPA access to NoSQL databases. This support is already part of the EclipseLink development trunk and can be tried out using the milestone or nightly builds.  Initial support is provided for MongoDB and Oracle NoSQL. A plug-able platform and adapter layer allows for other databases to be supported.

NoSQL i
Tags: jpa, nosql, mongodb, eclipselink
Replies: 0, Views: 2126, today: 0, week: 5, month: 14
Thumbs up: 0, thumbs down: 0, stars: 0.0
EclipseLink JPA supports MongoDB
by jamesssss posted Sep 20 2014, 17:52
Replies: 0 | Views: 2126
NoSQL
by jamesssss posted Sep 20 2014, 17:51
Replies: 0 | Views: 1724
Data Partitioning - Scaling the Database
by jamesssss posted Sep 20 2014, 17:49
Replies: 0 | Views: 2090
EclipseLink 2.5.2 cache coordination listener
by mnb posted Sep 19 2014, 6:51
Replies: 1 | Views: 1665
RE: QueryHints.RESULT_TYPE, ResultType.Map
by jamesssss posted Aug 8 2014, 8:33
Replies: 0 | Views: 3116