Thursday, October 21, 2004

To Annotate or Not? Tiger is now out of the cage and  annotations have become popular. It always comes to my mind whether to use XML or Annotations for storing metadata. Mike Keith, Architect of Oracle TopLink wrote an article To annotate or not that makess some comparisons between the two paradigms of storing and reading metadata and considers the advantages and disadvantages of annotations. He lays out code examples that help explain some of the issues concretely. 2:42:32 PM    comment []

Connection Caching in Data Sources Connection caching, generally implemented in the middle tier, allows a single database connection to be shared among different applications.  The middle tier maintains a pool of pre-allocated physical database connections that applications can use to interact with database servers.  When applications request a database connection, the middle tier first looks in the pool to see if there are any available connections that would satisfy the request; if so, the middle tier simply returns one of those connections. My coworker Frances Zhao wrote an article how DataSources are changing in OC4J 10.1.3 and how connection caching is performed declaratively and programmatically in OC4J. 2:11:40 PM    comment []

© Copyright 2004 Debu Panda.

PS: These are my own thoughts and not of my employer ..