It seems that the names of the patterns have been changing. The patterns catalog on Sun's site have names like "value object", "aggregate entity" and "decorating filter". However, in the 2nd edition of core patterns they use the names "transfer object", "composite entity" and "intercepting filter". So are these the new "correct" names for the patterns? Can we use these interchangeably? It seems that the concepts of each pattern are still the same. -Ray
Thanks Pradeep. That solves the question of the value object. There is still the case of the other two classes though. I also wanted to ask - as these patterns are evolving what is the most source? The core patterns 2nd edition is not posted on the web yet but seems to be the most recent 'official' source.
Rufus BugleWeed
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I am glad you asked this question because I have been wondering about this too. On page xxviii of the second Ed. I see the URL of the patterns interst group. I would really be interested in knowing if you find any discussion of this over there. [ October 15, 2003: Message edited by: Rufus BugleWeed ]
Billy JK
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The core patterns 2nd edition is not posted on the web yet ...
Now it is, at least part of it, check out : Core J2EE Patterns - Second Edition and specifically Core J2EE Pattern Catalog Enjoy, Billy [ October 15, 2003: Message edited by: Billy JK ]
Ray James
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Another question - the Fastlane Reader pattern does not appear at all in the Core Patterns 2nd ed. book. Does this mean it is no longer a core J2EE pattern?
Rufus BugleWeed
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IMO, FLR has evolved into value list handler.
Sivasundaram Umapathy
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FLR and VLH can be used hand in hand. As per sun,"A value list handler can break up long lists of data retrieved through a fast-lane reader into manageable pieces"
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