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Changes for page WebObjects and Squeryl

Last modified by Ravi Mendis on 2011/04/01 11:14
From version 110.1
edited by Ravi Mendis
on 2010/11/10 05:40
Change comment: There is no comment for this version
To version 112.1
edited by Ravi Mendis
on 2010/11/10 06:24
Change comment: There is no comment for this version

Summary

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1 1  = Squeryl ~= //SQL-like// DSL for Scala =
2 2  
3 -Advantages of Squeryl over EOF:
3 +Advantages of [[Squeryl>>http://squeryl.org/]] over EOF:
4 4  
5 5  * Concurrent
6 6  ** Spawns multiple database connections
... ... @@ -10,13 +10,13 @@
10 10  * Strongly-typed
11 11  ** Better suited for database/business "logic".
12 12   E.g: Exploits the compiler and IDE to catch exceptions at compile time rather than at run-time.
13 -* Uses Scala (functional) collection classes
13 +* Uses Scala collection classes
14 14  
15 15  = Migrating EOF -> Squeryl =
16 16  
17 -In contrast to EOF Squeryl maintains its ORM information programmatically - in the classes itself and collectively in a ##schema##. In keeping with the strongly-typed philosophy of Scala, Squeryl has no dynamic component like EOF (i.e an EO model file).
17 +In contrast to EOF Squeryl maintains its ORM information programmatically - in the classes itself and collectively in a [[schema>>http://squeryl.org/schema-definition.html]]. In keeping with the strongly-typed philosophy of Scala, Squeryl has no dynamic component like EOF (i.e an EO model file).
18 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.
19 +EOF has the ability to generate classes in Java (and in Objective-C prior to WebObjects 4.5) because enforcing type has become customary in enterprise environments. We may exploit this feature of EOF to generate a Squeryl schema from an EO model.
20 20  
21 21  === Preparing your EO model ===
22 22  
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42 42  == Differences Between a Squeryl Schema and EOF Classes ==
43 43  
44 44  * Optional attributes (i.e those that ##allowsNull##) are typed as ##OptionT##
45 -* Relationships that are not mandatory (i.e optional relationships) are also typed as ##OptionT##
46 -* ToMany relationships are represented as a Squeryl iterable (collection class) as opposed to a ##NSArray##.
45 +* To one relationships that are not mandatory (i.e optional relationships) are also typed as ##OptionT##
46 +* To many relationships are represented as a Squeryl iterable (collection class) as opposed to a ##NSArray##.