Changes for page WebObjects and Squeryl

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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
...	...	@@ -10,19 +10,19 @@
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 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
23		-* Make sure **all** EO entities have a class name (including abstract many-To-many "join" tables). There's no support for entities marked as ##EOGenericRecord##.
	23	+* Make sure **all** EO entities have a class name (including abstract many-To-many "join" tables). FYI: There can be no support for entities classified as ##EOGenericRecord##.
24	24	* Mark the abstract many-To-Many join entities as ##Abstract##.
25		-* (Temporary) Ensure all the model entities are in the same package. i.e ##model## <-> ##package## corresponds 1-to-1.
	25	+* (Temporary) Ensure all the model entities are in the same package. i.e the package is exclusive to the model.
26	26
27	27	=== Generating the Squeryl Schema ===
28	28
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38	38	Any custom business "logic" will have to be manually re-written in Scala
39	39
40	40	{{/note}}
	41	+
	42	+== Differences Between a Squeryl Schema and EOF Classes ==
	43	+
	44	+* Optional attributes (i.e those that ##allowsNull##) are typed as ##OptionT##
	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##.