Serialization of DataTable
|
View:
New views
4 Messages
—
Rating Filter:
Alert me
|
 |
Serialization of DataTable
by mark.jonkman
::
Rate this Message:
Some parts of this message have been removed.
Learn more about Nabble's security policy.
Hi Is there anyway to change the default handling of how DataTables are serialized in FlourineFX. The [DataTableType("...")] only seems to work with methods and I have classes that I need to send to Flex that have complex data in them including several that have DataTables stored in publicly accessible properties. Thus far my workaround was to write a method that simply serializes a DataTable into a ArrayCollection of Hashtable's so instead of storing a DataTable in the class property I store the ArrayCollection. I've never quite grasped the concept of why all DataTables aren't automatically turned into ArrayCollection of generic objects when passed back from Flourine. In my case, I have to write an Flex app that needs to be completely agnostic to the backend server. We have to create .NET version, ColdFusion and perhaps Java versions of the backend to satisfy the requirements. Thus I need to standardize how DataTables are sent back to match how CF or Java would. A sample case I face would be: on Facade calling a method called login(username, password) returning an instance of User if login successful. User contains information about the user, the basics stuff as well as information about what tasks they need to perform today and what parts of the system they have access to. In theory I could call 3 times to the server to do this, but why call the server needlessly when one call would suffice. In an ideal world the concept of the [DataTableType("...")] would apply to public properties as well as methods. I will admit I'm not a heavy hitter in terms of C# programming so before I start tearing into the source code of FlourineFx or pulling my hair completely out I thought I'd ask. Sincerely Mark R. Jonkman _______________________________________________ fluorine mailing list fluorine@... http://fluorine.thesilentgroup.com/mailman/listinfo/fluorine_fluorine.thesilentgroup.com |
|
|
Re: Serialization of DataTable
by Support-179
::
Rate this Message:
Some parts of this message have been removed.
Learn more about Nabble's security policy.
Hi Mark,
Yes, the same attribute handling can be added to class
members (properties and fields).
Related to your question "why aren't automatically turned
into ArrayCollection"...did you check that CF and Java do this
automatically?
For example this conversion table http://livedocs.adobe.com/flex/201/html/ent_services_config_097_08.html#270405 does
not even mention what rules the Java RowSet mapping
follows.
If you need it urgently then I will commit the required
changes to the SVN (a new release is planned soon)
Zoli From: fluorine-bounces@... [mailto:fluorine-bounces@...] On Behalf Of mark.jonkman@... Sent: Thursday, March 26, 2009 7:56 PM To: Flourine Mailing List Subject: [Fluorine] Serialization of DataTable Hi
Is there anyway to change the default handling of how DataTables are serialized in FlourineFX. The [DataTableType("...")] only seems to work with methods and I have classes that I need to send to Flex that have complex data in them including several that have DataTables stored in publicly accessible properties. Thus far my workaround was to write a method that simply serializes a DataTable into a ArrayCollection of Hashtable's so instead of storing a DataTable in the class property I store the ArrayCollection. I've never quite grasped the concept of why all DataTables aren't automatically turned into ArrayCollection of generic objects when passed back from Flourine. In my case, I have to write an Flex app that needs to be completely agnostic to the backend server. We have to create .NET version, ColdFusion and perhaps Java versions of the backend to satisfy the requirements. Thus I need to standardize how DataTables are sent back to match how CF or Java would. A sample case I face would be: on Facade calling a method called login(username, password) returning an instance of User if login successful. User contains information about the user, the basics stuff as well as information about what tasks they need to perform today and what parts of the system they have access to. In theory I could call 3 times to the server to do this, but why call the server needlessly when one call would suffice. In an ideal world the concept of the [DataTableType("...")] would apply to public properties as well as methods. I will admit I'm not a heavy hitter in terms of C# programming so before I start tearing into the source code of FlourineFx or pulling my hair completely out I thought I'd ask. Sincerely Mark R. Jonkman _______________________________________________ fluorine mailing list fluorine@... http://fluorine.thesilentgroup.com/mailman/listinfo/fluorine_fluorine.thesilentgroup.com |
|
|
Re: Serialization of DataTable
by mark.jonkman
::
Rate this Message:
Some parts of this message have been removed.
Learn more about Nabble's security policy.
Hi Sorry for the delay. When serializing a query from CF the default return type is an
ArrayCollection of untyped objects. In Java, I’m going to have to be a
tad less “certain” but when I last worked with a Java developer it
was returning an ArrayCollection of untyped objects. I’m almost dead
certain that all my research at the time pointed to ArrayCollection as the default
“replacement” to the old Flash Remoting RecordSet object relative
to Flex 2. In CF I discovered last week that the only way to force CF to return
an ArrayCollection of typed objects was to add __type__ as a column in the
recordset with that column containing a string of the object type in
Flex. I personally haven’t tested the theory yet. Any, that aside, are you saying that it currently works to add
the same attribute handling to class members (properties and fields)? Or that
you would have to check in a change that would allow it? I was trying the
attribute last week and it was throwing an error in Visual Studio. Perhaps I
had an outdated build. I’m not in an instantaneous hurry, if you’re planning
a release in the next week or so I can wait. Right now I’m just
prototyping client side code and doing mockups of the GUI before I start
spending time connecting to the backend. Thanks Zoli – I’m really enjoying working with
FlourineFX. Sincerely Mark R. Jonkman From:
fluorine-bounces@...
[mailto:fluorine-bounces@...] On Behalf Of Support Hi Mark, Yes, the same attribute handling can be added to class members
(properties and fields). Related to your question "why aren't automatically turned into
ArrayCollection"...did you check that CF and Java do this automatically? For example this conversion table http://livedocs.adobe.com/flex/201/html/ent_services_config_097_08.html#270405 does
not even mention what rules the Java RowSet mapping follows. If you need it urgently then I will commit the required changes to
the SVN (a new release is planned soon) Zoli From:
fluorine-bounces@... [mailto:fluorine-bounces@...]
On Behalf Of mark.jonkman@... Hi _______________________________________________ fluorine mailing list fluorine@... http://fluorine.thesilentgroup.com/mailman/listinfo/fluorine_fluorine.thesilentgroup.com |
|
|
Re: Serialization of DataTable
by Support-179
::
Rate this Message:
Some parts of this message have been removed.
Learn more about Nabble's security policy.
Hi Mark,
I really do not know about CF, I just took a look into the
BlazeDS sources and did not "seem" to do that conversion.
The attributes on members do not work in the
current version but it will be in the next release (I just tried it, it is not
yet committed to the SVN repository).
Zoli From: fluorine-bounces@... [mailto:fluorine-bounces@...] On Behalf Of Mark R. Jonkman Sent: Tuesday, March 31, 2009 2:03 AM To: 'Fluorine Mailing List' Subject: Re: [Fluorine] Serialization of DataTable Hi Sorry
for the delay. When
serializing a query from CF the default return type is an ArrayCollection of
untyped objects. In Java, I’m going to have to be a tad less “certain” but when
I last worked with a Java developer it was returning an ArrayCollection of
untyped objects. I’m almost dead certain that all my research at the time
pointed to ArrayCollection as the default “replacement” to the old Flash
Remoting RecordSet object relative to Flex 2. In CF I discovered last week that
the only way to force CF to return an ArrayCollection of typed objects was to
add __type__ as a column in the recordset with that column containing a
string of the object type in Flex. I personally haven’t tested the theory
yet. Any,
that aside, are you saying that it currently works to add the same attribute
handling to class members (properties and fields)? Or that you would have to
check in a change that would allow it? I was trying the attribute last week and
it was throwing an error in Visual Studio. Perhaps I had an outdated
build. I’m
not in an instantaneous hurry, if you’re planning a release in the next week or
so I can wait. Right now I’m just prototyping client side code and doing mockups
of the GUI before I start spending time connecting to the
backend. Thanks
Zoli – I’m really enjoying working with FlourineFX. Sincerely Mark
R. Jonkman From:
fluorine-bounces@...
[mailto:fluorine-bounces@...] On Behalf Of
Support Hi
Mark, Yes, the
same attribute handling can be added to class members (properties and
fields). Related
to your question "why aren't automatically turned into ArrayCollection"...did
you check that CF and Java do this automatically? For
example this conversion table http://livedocs.adobe.com/flex/201/html/ent_services_config_097_08.html#270405 does
not even mention what rules the Java RowSet mapping
follows. If you
need it urgently then I will commit the required changes to the SVN (a new
release is planned soon) Zoli From:
fluorine-bounces@...
[mailto:fluorine-bounces@...] On Behalf Of
mark.jonkman@... Hi _______________________________________________ fluorine mailing list fluorine@... http://fluorine.thesilentgroup.com/mailman/listinfo/fluorine_fluorine.thesilentgroup.com |
| Free embeddable forum powered by Nabble | Forum Help |
