Rohit,
Thank you very much for the explanation.
By the way, the Flash Builder 4.5 Data Model perspective displays the following when you hover over a <function…> tag and appears to be in error. See text in red below.
Defines the prototype of an externally defined function within a service.
For information about functions, including how to add them in Design mode, see Add service functions. Can
appear
A function element can only appear as an immediate child of a service element. Attributes
Attribute
Req/Opt
Default
Description
name
Required
Specifies the function name.
arguments (deprecated)
Optional
Note: The arguments attribute is deprecated in LiveCycle Data Services 4.5. For prolonged support an d
augmented functionality, use the parameters attribute.
Specifies the names and types of the function’s arguments. If present, the value specified for arguments
takes the form name:type, where name and type denote argument names and types, respectively.
Names must be valid data model language names, and types must be valid data model language type
expressions
Instead of an arguments attribute, you can use child parameter elements. If you use parameter elements,
you cannot include the arguments attribute.
parameters
Optional
Specifies the names and types of the function arguments. A missing parameters attribute indicates that the
function takes zero arguments.
If present, the value specified for arguments takes the form name:type[=default], where name , type, and
default denote parameter names and types, and default values respectively. The name and type are required.
The default value is optional.
Separate mutliple parameters with commas.
Default values can be literal values or expressions.
Names must be valid data model language names, and types must be valid data model language type
expressions.
Instead of a parameters attribute, you can use child parameter elements. If you use parameter elements, you
cannot include the parameter attribute.
return-type
Optional
Specifies the return type of the function.
You must specify the type of data that is returned. However, the attribute is optional because you can use a
child return-type element instead. Child elements
A function element can contain zero or more annotation and parameter elements, and zero or one return-
type elements. Example
The data model in the following example contains a service with two functions, both of which are called
from expressions in properties of an entity. <model xmlns="http://ns.adobe.com/Fiber/1.0">
<entity name="Applicant" persistent="true">
<property name="name" type="string"/>
<property name="ssn" type="string"/>
<property name="age" type="integer"/>
<property name="state" type="string"/>
<property name="score" expr="CreditScore.getCreditScore(ssn)"/>
<property name="risk" expr="CreditScore.getRisk(state, age, score)"/>
<id name="id" type="integer"/>
</entity>
<service name="CreditScore">
<function name="getCreditScore" parameters="ssn:string" return-type="integer"/>
<function name="getRisk" parameters="state:string, age:integer,
score:integer" return-type="integer"/>
</service>
</model> <
Maybe you can pass this info along so it gets fixed on the next Data Model plugin release…
Thanks,
Oscar
