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Changes for page WebObjects and Squeryl

Last modified by Ravi Mendis on 2011/04/01 11:14
From version 140.1
edited by Ravi Mendis
on 2010/11/10 02:57
Change comment: There is no comment for this version
To version 152.1
edited by Ravi Mendis
on 2010/11/09 23:45
Change comment: There is no comment for this version

Summary

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6 6  ** Spawns multiple database connections
7 7  ** Issues database transactions concurrently
8 8  * Scala Actor compatible
9 -** Immutable object model/graph
9 +* Immutable object model/graph
10 10  * Strongly-typed
11 -** Better suited for database/business "logic".
12 - E.g: Exploits the compiler and IDE to catch exceptions at compile time rather than at run-time.
11 +** Better suited for business "logic". E.g: avoiding ##UnknownKeyException##
13 13  * Uses Scala (functional) collection classes
14 -
15 -= Migrating EOF -> Squeryl =
16 -
17 -In keeping with the strong-typed philosophy of Scala, Squeryl has no dynamic component like EOF (i.e an EO model file).
18 -
19 -EOF has the ability to generate classes in Java (and in Objective-C prior to WebObjects 4.5) as enforcing type has become customary in enterprise environments. We may exploit this feature of EOF to generate a Squeryl schema.
20 -
21 -1. Create a .eogen file for your EO model as normal. Only set the ##File Names## extension to "scala".
22 -1. Use the Squeryl EO Templates:
23 -
24 -*
25 -** Entity.eotemplate [[template>>WOL:Squeryl _Entity.eotemplate]]
26 -** Entity.eotemplate [[template>>WOL:Squeryl Entity.eotemplate]]
27 -
28 -{{note title="Note"}}
29 -
30 -Any custom business "logic" will have to be manually re-written in Scala
31 -
32 -{{/note}}