[flexcoders] WSDLifficulty - bad SOAP encoding
I ran in to a problem today with Flex's SOAP encoding which I think is a bug in the SOAP encoder. It seems like whatever I did to call one of my webservice methods, Flex would give me an error as it was encoding my request. The error was something like the following: TypeError: Error #1009: Cannot access a property or method of a null object reference. ... at mx.rpc::AbstractService/dispatchEvent()[C:\dev\enterprise_bali \frameworks\mx\rpc\AbstractService.as:236] at mx.rpc.soap.mxml::WebService/dispatchEvent()[C:\dev \enterprise_bali\frameworks\mx\rpc\soap\mxml\WebService.as:226] at mx.rpc::AbstractOperation/http://www.adobe.com/2006/flex/mx/ internal::dispatchRpcEvent()[C:\dev\enterprise_bali\frameworks\mx\rpc \AbstractOperation.as:183] at mx.rpc.soap::Operation/http://www.adobe.com/2006/flex/mx/ internal::invokePendingCall()[C:\dev\enterprise_bali\frameworks\mx\rpc \soap\Operation.as:584] at mx.rpc.soap::Operation/send()[C:\dev\enterprise_bali\frameworks\mx \rpc\soap\Operation.as:492] at Function/http://adobe.com/AS3/2006/builtin::apply() at mx.rpc.soap.mxml::Operation/send()[C:\dev\enterprise_bali \frameworks\mx\rpc\soap\mxml\Operation.as:140] at Function/http://adobe.com/AS3/2006/builtin::apply() at mx.rpc::AbstractService/http://www.adobe.com/2006/actionscript/ flash/proxy::callProperty()[C:\dev\enterprise_bali\frameworks\mx\rpc \AbstractService.as:287] My program would always stop right at the encoding process. The trace stopped with these last lines: ... 19:41:19.740 [DEBUG] mx.rpc.soap.SOAPEncoder Encoding SOAP request envelope 19:41:19.745 [DEBUG] mx.rpc.soap.SOAPEncoder Encoding SOAP request body After many attempts to try to get my very simple 1-string request encoded, I started looking in to the WSDL. Luckily I could control the WSDL - in many webservice use cases, you can not. From what I have been able to deduce, Flex's SOAP encoder will throw the above error if the name of the webservice Operation - i.e. ListInterviews - is not the same as the name of the message part element, i.e. ListInterviewsRequest. As a more thorough example, consider this WSDL, which should be fully valid (Oxygenxml and XmlSpy are both ok with it, and can generate SOAP for it): ?xml version=1.0 encoding=UTF-8? wsdl:definitions xmlns:soap=http://schemas.xmlsoap.org/wsdl/soap/; xmlns:s=http://www.w3.org/2001/XMLSchema; xmlns:wsdl=http:// schemas.xmlsoap.org/wsdl/ xmlns:tns=http://www.yourURI.com/ OfficeService targetNamespace=http://www.yourURI.com/OfficeService; wsdl:types s:schema targetNamespace=http://www.yourURI.com/OfficeService; elementFormDefault=qualified s:element name=ListInterviewsRequest s:complexType s:sequence s:element name=Token type=s:string minOccurs=1/ /s:sequence /s:complexType /s:element s:element name=ListInterviewsResponse s:complexType s:sequence s:element name=InterviewList type=s:string minOccurs=0/ /s:sequence /s:complexType /s:element /s:schema /wsdl:types wsdl:message name=ListInterviewsSoapIn wsdl:part name=parameters element=tns:ListInterviewsRequest/ /wsdl:message wsdl:message name=ListInterviewsSoapOut wsdl:part name=parameters element=tns:ListInterviewsResponse/ /wsdl:message wsdl:portType name=OfficeServiceSoap wsdl:operation name=ListInterviews wsdl:input message=tns:ListInterviewsSoapIn/ wsdl:output message=tns:ListInterviewsSoapOut/ /wsdl:operation /wsdl:portType wsdl:binding name=OfficeServiceSoap type=tns:OfficeServiceSoap soap:binding transport=http://schemas.xmlsoap.org/soap/http/ wsdl:operation name=ListInterviews soap:operation soapAction=http://www.yourURI.com/OfficeService/ ListInterviews style=document/ wsdl:input soap:body use=literal/ /wsdl:input wsdl:output soap:body use=literal/ /wsdl:output /wsdl:operation /wsdl:binding wsdl:service name=OfficeService wsdl:port name=OfficeServiceSoap binding=tns:OfficeServiceSoap soap:address location=http://www.yourURI.com/OfficeService/ Implementation.page/ /wsdl:port /wsdl:service /wsdl:definitions A
Re: [flexcoders] Cairngorm .99 VO Question
I am not sure what the best practice is, but I often bind UI items directly to objects in my model - sometimes a particular instance might be bound to multiple controls both inbound and outbound. Because of this, sending the objects in my model directly to a remote service could suffer from the "bound properties disappear" bug in flex. So I typically treat VO objects sort of like a railroad car to dump things into.For example, I might have a Person class which encapsulates some data in my model. I'll make a Person.ReturnVO object which just takes the public properties from that instance and copies them to a PersonVO object, which I then send separately. Since PersonVO is just a subset of a Person object, I sometimes just pass over a copied object, but I try never to pass over the actual object that I'm using on the client side, always a copy.I'm not sure this is really a best practice, but it does get around the disappearing properties bug in Flex, so it works for now. I think that IterationTwo tends to stay a bit farther back from encapsulation than I do, but I like having intelligent objects for my commands to get/set values from/to.SeanOn Sep 15, 2005, at 10:02 AM, dave buhler wrote: Hello Everyone, I had a question regarding best practices when passing over my valueobjects. In Short, I've been alternating between two ways of referencing the VOs properties: 1) assigning the VO as a new object in my command, and passing over this new object or new object's props to my Delegate as a parameter 2) just importing the VO directly into the delegate and referencing the VO's properties when I pass it over to my CFC. What is considered best practice when working with the commands and delegates with regard to specifying props of my ValueObjects? Where should it be done? Dave -- Flexcoders Mailing List FAQ: http://groups.yahoo.com/group/flexcoders/files/flexcodersFAQ.txt Search Archives: http://www.mail-archive.com/flexcoders%40yahoogroups.comYAHOO! GROUPS LINKS Visit your group "flexcoders" on the web. To unsubscribe from this group, send an email to: [EMAIL PROTECTED] Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service. -- Flexcoders Mailing List FAQ: http://groups.yahoo.com/group/flexcoders/files/flexcodersFAQ.txt Search Archives: http://www.mail-archive.com/flexcoders%40yahoogroups.com YAHOO! GROUPS LINKS Visit your group "flexcoders" on the web. To unsubscribe from this group, send an email to:[EMAIL PROTECTED] Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
Re: [flexcoders] OH, For the love of all that's good, please help!
I ran into this as well. Looking at the SOAP encoded message, it appeared to me that flex wasn't making clean SOAP (pun definitely intended).When we switched over to using the CFC's RemoteObject instead of the WebService, things started working again. Wasn't too hard of a switch, and I'll take the NetConnectionDebugger over paging through SOAP any day. (still wish webservice serializing worked better...)See my "Flex serializer vs CF7 deserializer" post thread or the "Collections between Flex and Web services" thread for some possible workarounds that didn't work for me...Sean McKibbenOn Aug 23, 2005, at 10:29 AM, bsd wrote: I'm passing an array from Flex to a web service located in a CFC. It returns an error that states: "org.xml.sax.SAXException: No deserializer for array type" -- Flexcoders Mailing List FAQ: http://groups.yahoo.com/group/flexcoders/files/flexcodersFAQ.txt Search Archives: http://www.mail-archive.com/flexcoders%40yahoogroups.com YAHOO! GROUPS LINKS Visit your group "flexcoders" on the web. To unsubscribe from this group, send an email to:[EMAIL PROTECTED] Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
[flexcoders] Reverse-binding repeater items
So, I attempted the following:
mx:Repeater id=PrerequisitesRepeater
dataProvider={ModelLocator.curCourse.prerequisites}
mx:HBox width=100%
mx:TextInput id=Prerequisite editable=true
width=300 text={ModelLocator.curCourse.prerequisites
[PrerequisitesRepeater.currentIndex].text}/
mx:Binding source=Prerequisite
destination=ModelLocator.curCourse.prerequisites
[PrerequisitesRepeater.currentIndex].text/
mx:Link label=Delete click=/
/mx:HBox
/mx:Repeater
It works if I don't use the mx:Binding expression, if I do use it,
the first item doesn't work so good, but successive items seem to work.
I'm guessing this falls into the category of binding to dynamically
generated elements.
What is the 'right' way to do this? Should I just use a viewHelper to
handle each Prerequisite's change event to update the model?
Sometimes it seems easier to just do everything in actionscript...
but that is just because mxml is still pretty foreign to me...
Sean
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[flexcoders] guid/uuid generation
Is anyone aware of a guid generation system for flex/flash? I'm building a system which does quite a bit on the client before a trip to the server, and it needs to make some references amongst objects that the server can understand, so a real guid generator would be the best way to do that.I know I could probably use math.random() to generate a random number and try to use that as a guid, but this is an enterprise app here, and there are rules for guids which we'd need to conform to.Ideally, the the UUID version 5, using SHA-1 would be my preference. Anything at least pretty robust which could come up with the format, "{3F2504E0-4F89-11D3-9A0C-0305E82C3301}" would be useful.Anyone else come across a solution for this?Thanks,Sean
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Re: [flexcoders] Re: guid/uuid generation
Thanks Andrew Clint. Oddly enough, within about 5 minutes, I:a)finished building my own class to do it (converting Branden Hall's SHA-1 algorithm to AS2)b)received Clint's classd)received Andrew's linkTook longer to research than to write the class, once I found an AS SHA-1 algorithm.I just generated 50k uuids using SHA-1 hashes made from a namespace, the results of new date() and an incrementor. Probably overkill, but but I learned:a)flash can handle really big hash tablesb)I'm not going to win the lotteryc)I've forgotten much of my discrete math class in collegeI'm going to put in a request for MM to include a uuid generator. Seems to make sense given the nature of RIA that new object generation is going to occur mostly on the client, so why not have these things available. Even better why not have them compiled in the player?? (come on, it'd be less than 1k)Thanks againSeanOn Jul 13, 2005, at 6:14 PM, Andrew Spaulding wrote: Hey Sean, Check out ASCrypt at http://www.meychi.com/archive/31.php It has the following classes: Base8, Base64, Goauld, LZW, GUID, RC4, MD5, SHA1, ROT13, Rijndael and TEA. I have used the GUID class at it creates exactly what you are after. Also it is all written in Actionscript 2.0 cheers, Andrew Spaulding www.flexdaddy.info--- In flexcoders@yahoogroups.com, Sean McKibben [EMAIL PROTECTED] wrote: Is anyone aware of a guid generation system for flex/flash? I'm building a system which does quite a bit on the client before a trip to the server, and it needs to make some references amongst objects that the server can understand, so a real guid generator would be the best way to do that.I know I could probably use math.random() to generate a random number and try to use that as a guid, but this is an enterprise app here, and there are rules for guids which we'd need to conform to.Ideally, the the UUID version 5, using SHA-1 would be my preference. Anything at least pretty robust which could come up with the format, "{3F2504E0-4F89-11D3-9A0C-0305E82C3301}" would be useful.Anyone else come across a solution for this?Thanks, Sean -- Flexcoders Mailing List FAQ: http://groups.yahoo.com/group/flexcoders/files/flexcodersFAQ.txt Search Archives: http://www.mail-archive.com/flexcoders%40yahoogroups.com YAHOO! GROUPS LINKS Visit your group "flexcoders" on the web. To unsubscribe from this group, send an email to: [EMAIL PROTECTED] Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
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Re: [flexcoders] Reorder tree via dragging
So, what I've ended up using is the dataForFormat(source) when the
dragSource is a tree, which gets a reference to the tree. Once you
have that, the actual items being dragged will be the selectedNode or
the selectedNodes, depending on whether or not the tree allows
multiple selection.
So if you do
(selectedNode == event.target.getDropParent().getTreeNodeAt
(event.target.getDropLocation())
it will return true if they are, in fact, the same node.
Is anyone aware of a published list of what the various dataForFormat
strings are in the components that ship with flex?
Thanks,
Sean
On Jul 7, 2005, at 12:13 PM, Matthew Shirey wrote:
As I am currently working with this, I can say that dataForFormat
(source) will give you a reference to the source object of the
drag drop operation. I am not sure about the items one though.
I've read mixed documentation, some say its treeItems. Any rate,
there's a formats array in the event object that you can itterate
through and see all of the available formats if needed.
M.
On 7/6/05, Matt Chotin [EMAIL PROTECTED] wrote:
I think dataForFormat(items) or dataForFormat(source), not sure
which is valid for Tree, might give you the original items as
opposed to the copies.
Matt
From: flexcoders@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of Sean McKibben
Sent: Wednesday, July 06, 2005 1:17 PM
To: flexcoders@yahoogroups.com
Subject: [flexcoders] Reorder tree via dragging
So I'm trying to make a tree which can reorder its nodes by dragging
them. One of the things I wanted to do is prevent a parent item from
being dragged on to any of its children, and to show that during the
dragOver event.
In order to calculate whether the source is being dragged on to any
of its offspring, I've been comparing the
event.dragSource.dataForFormat(treeItems) first to
firstValue=event.target.getDropParent().getTreeNodeAt
(event.target.getDropLocation()) then recursively to the parents of
firstValue.
This apparently doesn't work because dataForFormat seems to hand me a
copy of the items being dragged instead of an actual reference, so
the two values are never equal. I did note that the items that
dataForFormat give me, do contain references to the real parents,
data and other objects, it is just that the items themselves are
copies for some reason.
What I ended up doing is something like the following:
if(checkParentDrop(myowncustom.TreeUtils.findDataItemNode
(view.TemplateAssemblyTree, dragItems[i].getData())
, event.target.getDropParent().getTreeNodeAt
(event.target.getDropLocation(
action = DragManager.NONE;
private function checkParentDrop(source, node):Boolean
{
if(source == node)
return true;
if(node.getParent()!=null)
return checkParentDrop(source, node.getParent());
else
return false;
}
public static function findDataItemNode(tree:mx.controls.Tree,
o:Object):TreeNode
... recursively check the entire tree for the same getData()
reference ...
So basically instead of comparing items from
event.dragSource.dataForFormat(treeItems), i have to recursively
look them up by the reference they contain to their getData()
information, to get the actual reference to the TreeNode which I then
compare to the drop target and its ancestors for referential equality.
This is horribly ugly, but it works. Is there a better way that
people have stumbled across to validate tree-self drags? I wish that
dataForFormat handed over references instead of copies!
(sorry if this was discussed before; I'm apparently bad at finding
previously discussed topics in this list!)
Sean
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[flexcoders] Reorder tree via dragging
So I'm trying to make a tree which can reorder its nodes by dragging
them. One of the things I wanted to do is prevent a parent item from
being dragged on to any of its children, and to show that during the
dragOver event.
In order to calculate whether the source is being dragged on to any
of its offspring, I've been comparing the
event.dragSource.dataForFormat(treeItems) first to
firstValue=event.target.getDropParent().getTreeNodeAt
(event.target.getDropLocation()) then recursively to the parents of
firstValue.
This apparently doesn't work because dataForFormat seems to hand me a
copy of the items being dragged instead of an actual reference, so
the two values are never equal. I did note that the items that
dataForFormat give me, do contain references to the real parents,
data and other objects, it is just that the items themselves are
copies for some reason.
What I ended up doing is something like the following:
if(checkParentDrop(myowncustom.TreeUtils.findDataItemNode
(view.TemplateAssemblyTree, dragItems[i].getData())
, event.target.getDropParent().getTreeNodeAt
(event.target.getDropLocation(
action = DragManager.NONE;
private function checkParentDrop(source, node):Boolean
{
if(source == node)
return true;
if(node.getParent()!=null)
return checkParentDrop(source, node.getParent());
else
return false;
}
public static function findDataItemNode(tree:mx.controls.Tree,
o:Object):TreeNode
... recursively check the entire tree for the same getData()
reference ...
So basically instead of comparing items from
event.dragSource.dataForFormat(treeItems), i have to recursively
look them up by the reference they contain to their getData()
information, to get the actual reference to the TreeNode which I then
compare to the drop target and its ancestors for referential equality.
This is horribly ugly, but it works. Is there a better way that
people have stumbled across to validate tree-self drags? I wish that
dataForFormat handed over references instead of copies!
(sorry if this was discussed before; I'm apparently bad at finding
previously discussed topics in this list!)
Sean
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Re: [flexcoders] Sort arrows in DataGrid
All these things have been discussed in past. Please search the archiveswith appropriate keywords to find those threads.Maybe these things belong in the documentation? Maybe in the FAQ?Note: a search for "sortArrow" at the site you provided yielded no results (then again if I knew there was a property called sortArrow, I wouldn't have needed to ask the question). A search in my own (unfortunately incomplete) flexcoders archives for "sortArrow" revealed nothing, a search for "sort" revealed too many hits (217), "sort direction" revealed 7 hits, none of which answered my question.I really think you folks did a great job with flex in general, but I am too frequently frustrated by the documentation... or the lack thereof. My project's deadline is coming up way too fast, and the holes in the documentation cost me many hours each week!I'm just hoping things continue to improve... I know it is only version 1.5. Perhaps I'm just used to Microsoft's excellent documentation for .net 1.1. Thank god you guys aren't Microsoft. Can you be more like Microsoft? (I know, I'm never satisfied ;)SeanOn Jul 2, 2005, at 1:09 PM, Abdul Qabiz wrote: Hi, You can get the reference of sort arrow using: dataGridInstance.sortArrow To hide arrow: dataGridInstance.sortArrow._visible = false; To show arrow: dataGridInstance.sortArrow._visible = true; You can use dataGridInstance.placeSortArrow(..) method to show arrow on column that is the current sortIndex. To sort a column( or set the sortIndex) you can call: dataGridInstance.sortItemsBy(fieldName, order) : VoidTo determine current sorting order, use dataGridInstance.sortDirection property. It returns either 'DESC' or 'ASC All these things have been discussed in past. Please search the archives with appropriate keywords to find those threads. http://www.mail-archive.com/flexcoders%40yahoogroups.com-abdul -Original Message- From: flexcoders@yahoogroups.com [mailto:flexcoders@yahoogroups.com] On Behalf Of Sean McKibben Sent: Saturday, July 02, 2005 11:50 PM To: flexcoders@yahoogroups.com Subject: [flexcoders] Sort arrows in DataGrid Is there a way to set the sortIndex of a datagrid manually, or to manually clear the sort arrow? I have a DataGrid which allows things to be dropped in to it at arbitrary locations, which would change it to unsorted, but I can't figure out how to remove the sort arrow in the header to reflect the unsorted state. Also, is there a way to determine what the current sort order of a column is? It seems like each column keeps its own sort direction separately, so I've had luck just keeping my own array for sort order flags, but there is a chance that the two separate records will get out of parity, given the above case. Keep in mind that I'm doing entirely custom sorting of the datagrid's provider on the headerRelease event. (by setting sortableColumns="true" on the grid, and sortable="true" and sortOnHeaderRelease="false" on the columns) Thanks, Sean -- Flexcoders Mailing List FAQ: http://groups.yahoo.com/group/flexcoders/files/flexcodersFAQ.txt Search Archives: http://www.mail-archive.com/flexcoders%40yahoogroups.com Yahoo! Groups Links -- Flexcoders Mailing List FAQ: http://groups.yahoo.com/group/flexcoders/files/flexcodersFAQ.txt Search Archives: http://www.mail-archive.com/flexcoders%40yahoogroups.com YAHOO! GROUPS LINKS Visit your group "flexcoders" on the web. To unsubscribe from this group, send an email to: [EMAIL PROTECTED] Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service. -- Flexcoders Mailing List FAQ: http://groups.yahoo.com/group/flexcoders/files/flexcodersFAQ.txt Search Archives: http://www.mail-archive.com/flexcoders%40yahoogroups.com YAHOO! GROUPS LINKS Visit your group "flexcoders" on the web. To unsubscribe from this group, send an email to:[EMAIL PROTECTED] Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
[flexcoders] Sort arrows in DataGrid
Is there a way to set the sortIndex of a datagrid manually, or to manually clear the sort arrow? I have a DataGrid which allows things to be dropped in to it at arbitrary locations, which would change it to unsorted, but I can't figure out how to remove the sort arrow in the header to reflect the unsorted state. Also, is there a way to determine what the current sort order of a column is? It seems like each column keeps its own sort direction separately, so I've had luck just keeping my own array for sort order flags, but there is a chance that the two separate records will get out of parity, given the above case. Keep in mind that I'm doing entirely custom sorting of the datagrid's provider on the headerRelease event. (by setting sortableColumns=true on the grid, and sortable=true and sortOnHeaderRelease=false on the columns) Thanks, Sean -- Flexcoders Mailing List FAQ: http://groups.yahoo.com/group/flexcoders/files/flexcodersFAQ.txt Search Archives: http://www.mail-archive.com/flexcoders%40yahoogroups.com Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/flexcoders/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[flexcoders] SOAP through a socket
Is there a way to invoke the SOAP deserializer to read in data from an XMLSocket connection? If my server sends an information push (in xml SOAP format) to all connected clients, I want them to get the data that is broadcast in object form, just as if the XML had been sent through a webservice result. Any ideas for manually invoking the deserializer with either an XML string or a XML object? Thanks, Sean McKibben -- Flexcoders Mailing List FAQ: http://groups.yahoo.com/group/flexcoders/files/flexcodersFAQ.txt Search Archives: http://www.mail-archive.com/flexcoders%40yahoogroups.com Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/flexcoders/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [flexcoders] Design flaw in DataGrid sorting
I think Mike Chambers' method of sorting (http://weblogs.macromedia.com/mesh/archives/2005/04/sorting_date_fi.cfm - similar to below) works pretty good, but it just seems wrong that you have to wait for the DataGrid to sort, react to the headerRelease function, which occurs after the sort and then resort again with your own algorithm. The sortCompareFunction would have been great if it would just return row data, similar to the labelFunction.Also, the LiveDocs say "headerRelease: Broadcast when a column header is pressed and released, indicating that a sort operation is about to occur." But I don't think this method would work if that were true. Good thing it happens after the sort!SeanOn Jun 15, 2005, at 3:48 AM, Dirk Eismann wrote: You can sort Date objects by sorting on their numerical getTime() value, i.e. mx:Script private function sortColumn(evt:Object):Void { if (evt.target.sortDirection == "DESC") { var arrayFlags:Number = Array.DESCENDING; } else { var arrayFlags:Number = Array.ASCENDING; } evt.target.sortItems(sortByDate, arrayFlags); } public function sortByDate(itemA:Object, itemB:Object, flags:Number):Number { var a:Date = itemA.date; var b:Date = itemB.date; if (flags == Array.ASCENDING) { if (a.getTime() b.getTime()) return -1; if (a.getTime() == b.getTime()) return 0; if (a.getTime() b.getTime()) return 1; } else { if (a.getTime() b.getTime()) return 1; if (a.getTime() == b.getTime()) return 0; if (a.getTime() b.getTime()) return -1; } } /mx:Script mx:DataGrid id="dateGrid" dataProvider="{data}" headerRelease="sortColumn(event)" mx:columns mx:Array mx:DataGridColumn sortable="true" columnName="date" headerText="Date" / /mx:Array /mx:columns /mx:DataGrid Dirk.-Original Message- From: flexcoders@yahoogroups.com [mailto:flexcoders@yahoogroups.com]On Behalf Of Sean McKibben Sent: Tuesday, June 14, 2005 9:35 PM To: flexcoders@yahoogroups.com Subject: [flexcoders] Design flaw in DataGrid sorting I have to call the data grid's sorting mechanism flawed.Let's examine a case where you want to sort a dataGrid by a date column. In all likelihood, you're going to have a labelFunction to format your date objects into a string. Depending on your locale, that string is probably not what you want to sort on (i.e. 02/04/05 comes before 02/03/06 on the calendar, but not as a string), so you'd like to write a sortCompare function for that column.Unfortunately, the sortCompare function only receives the string value from the labelFunction, so you'd either have to do some very slow string parsing, or sort based on the results from the labelFunction alone. You don't get a chance to compare any more information about a row than the string returned by a labelFunction, and the labelFunction can only return a string.Not a good way to do it, Macromedia!So, what is the best workaround? Let it sort once, then resort using the headerRelease event and operating on the DataProvider? (assuming headerRelease fires after sorting is done - contrary to the documentation, but in line with Ailstair McLeod's tests) Sean Yahoo! Groups Links Yahoo! Groups Links To visit your group on the web, go to:http://groups.yahoo.com/group/flexcoders/ To unsubscribe from this group, send an email to:[EMAIL PROTECTED] Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
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Re: [flexcoders] Collections between Flex and Web services
I'm running in to similar issues with webServices going to CF7 (see my "Flex serializer vs CF7 deserializer" posts). Something that I've found which aids troubleshooting is to look at the actual soap envelope which gets sent between the client and server.I've noticed that the SOAP encoding seems weird when an object contains another object or array. Instead of using key and value child tags, it will use varibleName tags. Still haven't found a workaroundSeanOn Jun 15, 2005, at 8:36 AM, cgobble wrote: Hello, I'm trying to return complex types with collections from a web service and everything seems to work fine. But, when I send the type as the input parameter for the web service, if there is only 1 item in the collection it does not get back to the web service. For instance, you have a Contact object in a dotnet web service. The Contact has a collection of phone numbers. I simply want to pass the entire Contact object back and forth between the web service and Flex. I create a method on the web service such as: (VB) Public Sub SaveContact(Contact as Contact) End Sub However, it seems that if I only have 1 phone number, the phone number gets lost in translation, even though the Contact info comes back correctly. I was able to partially fix this by making sure my collections were instantiated in the constructor, but if I nest a collection, it doesn't seem to work right. Any ideas?? Yahoo! Groups Links To visit your group on the web, go to:http://groups.yahoo.com/group/flexcoders/ To unsubscribe from this group, send an email to:[EMAIL PROTECTED] Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service. Yahoo! Groups Links To visit your group on the web, go to:http://groups.yahoo.com/group/flexcoders/ To unsubscribe from this group, send an email to:[EMAIL PROTECTED] Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
[flexcoders] Design flaw in DataGrid sorting
I have to call the data grid's sorting mechanism flawed. Let's examine a case where you want to sort a dataGrid by a date column. In all likelihood, you're going to have a labelFunction to format your date objects into a string. Depending on your locale, that string is probably not what you want to sort on (i.e. 02/04/05 comes before 02/03/06 on the calendar, but not as a string), so you'd like to write a sortCompare function for that column. Unfortunately, the sortCompare function only receives the string value from the labelFunction, so you'd either have to do some very slow string parsing, or sort based on the results from the labelFunction alone. You don't get a chance to compare any more information about a row than the string returned by a labelFunction, and the labelFunction can only return a string. Not a good way to do it, Macromedia! So, what is the best workaround? Let it sort once, then resort using the headerRelease event and operating on the DataProvider? (assuming headerRelease fires after sorting is done - contrary to the documentation, but in line with Ailstair McLeod's tests) Sean Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/flexcoders/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[flexcoders] Flex serializer vs CF7 deserializer
/encoding/;
item
key xsi:type=xsd:stringid/key
value xsi:type=xsd:string50/value
/item
/multiRef
multiRef id=id1 soapenc:root=0
soapenv:encodingStyle=http://schemas.xmlsoap.org/soap/encoding/;
xsi:type=ns4:Map xmlns:ns4=http://xml.apache.org/xml-soap;
xmlns:soapenc=http://schemas.xmlsoap.org/soap/encoding/;
item
key xsi:type=xsd:stringid/key
value xsi:type=xsd:string61/value
/item
/multiRef
multiRef id=id2 s
oapenc:root=0 soapenv:encodingStyle=http://
schemas.xmlsoap.org/soap/encoding/ xsi:type=ns5:Map
xmlns:ns5=http://xml.apache.org/xml-soap; xmlns:soapenc=http://
schemas.xmlsoap.org/soap/encoding/
item
key xsi:type=xsd:stringid/key
value xsi:type=xsd:string45/value
/item
/multiRef
/soapenv:Body
/soapenv:Envelope
That SOAP encoding works just fine with the CFC, but I can't seem to
find a way to make Flex serialize objects this way. I could copy this
envelope in to my mx:request tag, but that won't work with the
'full' version of this object which has member arrays (i.e.
myObj.subitems:Array = [1,2,3,4,n] so I'm stuck using an actual
serializer rather than just binding to a pre-defined SOAP envelope.
I've tried the mx:request format=xml / and mx:request
format=object / in my services tag, but Flex's request doesn't
differ at all.
I've also found that sending an object such as:
var myObj:Object = new Object();
myObj.arrayTest = [{id:1},2,{name:hi}]
can't be deserialized by CF, returning the errorstring,
org.xml.sax.SAXException: No deserializer defined for array type
This is driving me CRAZY (or maybe it is the heat). Is there a
setting in the CFC that can be changed to make the SOAP that Flex
delivers work? (I'm not the CF guy here, so my knowledge of that side
of things is lacking, unfortunately)
Thanks for your help,
Sean McKibben
graphex at graphex and com
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Re: [flexcoders] Flex serializer vs CF7 deserializer
Hmm, didn't seem to make any difference to what got sent. I might not be doing it right.I'm using cairngorm, and my delegate starts with: this.service = ServiceLocator.getInstance().getService( "objectWS" );(in the constructor)then the invocation has: service.stub.xmlEncoderConfig = new XMLEncoderConfig(); service.stub.xmlEncoderConfig.defaultObjectToMap = true;//also tried false var call:Object = service.wsSet('com.my.object.name', myObj);Do I set the xmlEncoderConfig on the service itself, or on the call object?Seems like it should do something different based on the value of defaultObjectToMap, but I'm not getting a change.ThanksSeanOn Jun 14, 2005, at 8:37 PM, Peter Farland wrote: I'm not familiar with the requirements for CFC SOAP invocation, but this is an unofficial work around that I've not tested but might work. Before invoking the MXML WebService's method, try changing the WebService's XMLEncoder's handling of Objects: mx:WebService id="myCFCWebService" ... mx:Script import mx.services.*; //... snip // inside some invocation utility function myCFCWebService.stub.xmlEncoderConfig = new XMLEncoderConfig(); myCFCWebService.stub.xmlEncoderConfig.defaultObjectToMap = true; //... snip // then make the call Yahoo! Groups Links To visit your group on the web, go to:http://groups.yahoo.com/group/flexcoders/ To unsubscribe from this group, send an email to:[EMAIL PROTECTED] Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
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[flexcoders] TreeDataProvider implementation
I believe that I need to write my own class which implements TreeDataProvider, but am finding the task a bit daunting. Has anyone written their own TreeDataProvider that would be willing to share it with me or the list? Is anyone aware of any articles about implementing TreeDataProvider? I don't find much comfort in the liveDocs explanation at: http://livedocs.macromedia.com/flex/15/asdocs_en/mx/controls/ treeclasses/TreeDataProvider.html and Developing Flex Applications and the book don't really give many pointers either. If there was some sort of reference implementation I could peek at, I'd feel much better about heading down this path. It probably isn't all that difficult, but it is a big chunk of time to waste if I can't make it work... Thanks, Sean McKibben graphex at graphex com Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/flexcoders/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [flexcoders] Re: TreeDataProvider implementation
I think the main reason I think I need to make my own TreeDataProvider is that the CF object persistence backend I'm integrating with requires that I send back deleted objects with a property, deleted=true. So there will be a bunch of objects which I don't want to show in my tree data with deleted=true. In my last tree I also had trouble where date objects were being appended to the label property, and I couldn't 'hide' anything in the 'data' object. I ended up writing a separate object to store my complex data, then parsing it into a simple object which is assigned to the tree. Any commands from the tree then just referenced the 'bigger' object by id values in a hash table. I don't think I can really do that this time, since it is pretty important for the tree's data source to actually have a bunch more information than is shown in the tree.What other options do I have? I hate to say it, but I find the documentation very confusing on using the Tree to represent and modify complex nested data structures. My main goal is to have my main value object be the one assigned to the tree, but with the flexibility to manage which folders are opened, what labels are shown, and what sub-objects are hidden.Thanks,SeanOn Jun 13, 2005, at 11:05 AM, alex_harui wrote: TreeDataProvider is advanced stuff. Why do you think you need your own? Give a little context and we'll see. We currently handle XML and object graphs pretty well. Also the code for two TreeDataProviders in shipped in Flash MX 2004 in mx\controls\treeClasses --- In flexcoders@yahoogroups.com, Sean McKibben [EMAIL PROTECTED] wrote: I believe that I need to write my own class which implements TreeDataProvider, but am finding the task a bit daunting. Has anyone written their own TreeDataProvider that would be willing to share it with me or the list? Is anyone aware of any articles about implementing TreeDataProvider?I don't find much comfort in the liveDocs explanation at: http://livedocs.macromedia.com/flex/15/asdocs_en/mx/controls/ treeclasses/TreeDataProvider.html and Developing Flex Applications and "the book" don't really give many pointers either.If there was some sort of reference implementation I could peek at, I'd feel much better about heading down this path. It probably isn't all that difficult, but it is a big chunk of time to waste if I can't make it work... Thanks, Sean McKibben graphex at graphex com Yahoo! Groups Links To visit your group on the web, go to:http://groups.yahoo.com/group/flexcoders/ To unsubscribe from this group, send an email to:[EMAIL PROTECTED] Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service. Yahoo! Groups Links To visit your group on the web, go to:http://groups.yahoo.com/group/flexcoders/ To unsubscribe from this group, send an email to:[EMAIL PROTECTED] Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
[flexcoders] CFC Web Services and Boolean types in Flex
So we're trying to get a complex object with boolean properties in coldFusion to serialize into a complex object with boolean properties in Flex, but we keep getting wrongly typed results. Depending on the method we choose, we get a string value of "true" or "false" or a (case insensitive) string value of "yes" or "no". Has anyone been able to get complex objects in CF webservices to properly type booleans?Here is an example of what we're getting:item key xsi:type="xsd:string"lock/key value xsi:type="xsd:string"false/value/itembut we should get:item key xsi:type="xsd:string"lock/key value xsi:type="xsd:boolean"false/value /itemAny thoughts?(sorry this is a bit more about CF than flex, but actionScript is the more strongly typed language that cares about the difference between "false" and false!)Thanks,Sean McKibben Yahoo! Groups Links To visit your group on the web, go to:http://groups.yahoo.com/group/flexcoders/ To unsubscribe from this group, send an email to:[EMAIL PROTECTED] Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
[flexcoders] Data Binding and Server Objects
If I'm getting objects from a web service and want to use them in
data binding, do I have to re-create them in ActionScript in order
for their various properties and sub-objects to be bindable?
Ideally, I'd like to just use what the server gives me and not
rewrite the objects in AS. i.e.:
(in my ModelLocator)
public static var userInfo:Object;
(in my GetUserCommand)
ModelLocator.userInfo = event.result[0];
(In my mxml)
mx:Label text='{Welcome, +ModelLocator.userInfo.firstname+
+ModelLocator.userInfo.lastname}' /
Is it possible to get this to work like that? or will ModelLocator
need to have something like:
public static var userInfo:UserVO;
function ModelLocator()
{
ModelLocator.userInfo = new UserVO();
}
class com.app.path.UserVO
...
I'd rather avoid having to create all the server side objects on the
client side; they come from the web service strongly typed, which is
good enough for me, but does Flex need to have all of the bindable
properties defined at complie-time for binding to work?
Thanks,
Sean
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Re: [flexcoders] Cairngorm 0.99
I'm having some trouble getting my Services.mxml to work with .99.I keep getting errors like:Error /com/cadpo/shared/business/Services.mxml:4Namespace http://www.iterationtwo.com/cairngorm has not been associated with component manifest.Error /com/cadpo/shared/business/Services.mxml:4No type for element "http://www.iterationtwo.com/cairngorm:ServiceLocator"Error /com/cadpo/shared/business/Services.mxml:4Unexpected root element "http://www.iterationtwo.com/cairngorm:ServiceLocator" does not extend MovieClipI put the cairngorm-manifest.xml into the WEB-INF/flex directory, but it still doesn't want to eat it.Here is the first part of my Services.mxml:?xml version="1.0" encoding="utf-8"?cairngorm:ServiceLocator xmlns:mx="http://www.macromedia.com/2003/mxml" xmlns:cairngorm="http://www.iterationtwo.com/cairngorm" mx:WebService id="myWS"...Is the xmlns:cairngorm="http://www.iterationtwo.com/cairngorm" attribute correct? I copied it out of one of the sample apps included in .99.Any ideas?Thanks,Sean McKibben Yahoo! Groups Links To visit your group on the web, go to:http://groups.yahoo.com/group/flexcoders/ To unsubscribe from this group, send an email to:[EMAIL PROTECTED] Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
[flexcoders] XMLObjectOutput bug
I think that the trObj method of XMLObjectOutput.as has as problem
where it keeps doubling the size of its internal __stack variable
with each new object it has.
The section which has:
// verify that we have not already seen this object
if(obj instanceof Array || obj instanceof Function || obj
instanceof MovieClip || obj instanceof Object)
{
var len = __stack.length;
// walk the stack and look for matches
for(var i = 0; i len; i++)
{
if(obj == this || __stack[i] == obj)
{
// we have a match, get out
var nSpace =+ spacer;
trace(spacer + [self reference - will not
trace]);
return;
} else {
// not found, add it to the list
__stack.push(obj);
}
}
}
seems like it would add the object to the stack each time it iterates
through the for loop unless the particular object it is searching for
happens to be the one it is testing in that iteration. This seems to
be the cause of the problem where the __stack array grows
geometrically in size.
If you're using this to trace objects with any depth, __stack.length
very quickly gets up in to the thousands, self reference or not.
Changing that section of code to:
// verify that we have not already seen this object
if(obj instanceof Array || obj instanceof Function || obj
instanceof MovieClip || obj instanceof Object)
{
var len = __stack.length;
// walk the stack and look for matches
for(var i = 0; i len; i++)
{
if(obj == this || __stack[i] == obj)
{
// we have a match, get out
var nSpace =+ spacer;
trace(spacer + [self reference - will not
trace]);
return;
}
}
// not found, add it to the list
__stack.push(obj);
}
seems to do the trick, although I wonder if there is a way to do this
with hash tables instead of iterating through a numbered array?
Is there a way of generating hash codes or using an object reference
as a key?
Sean McKibben
[EMAIL PROTECTED]
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[flexcoders] dispatchEvent in AS class?
I'm trying to wrap an XMLSocket object in a singleton class to manage
my (single) XMLSocket connection, but I can't seem to get it to throw
any events. Is it that I need to put it into my .mxml file as a
component or something? Right now it is just an actionScript class.
I was wanting to stick to the cairngorm framework's delegate model, but
my SocketManager actually initiates commands from the server it is
connected to (the whole point of my XMLSocket) so this class will need
to dispatch a bunch events, preferably using the
addEventListener+dispatchEvent model.
Whenever the socket connection succeeds, I get my SocketManager:
Socket connection attempt succeeded trace statement, then I get a
warning which says Warning: dispatchEvent is not a function which
leads me to believe that the EventDispatcher voodoo I'm doing in my
constructor isn't working. Is it possible to send events like this?
Any help is appreciated.
Thanks,
Sean McKibben
(code below)
import com.iterationtwo.cairngorm.business.*;
import mx.utils.Delegate;
import mx.events.*;
[Event(onSocketOpen)]
[Event(onSocketClose)]
class com.client.capture.business.SocketManager extends MovieClip
//(also tried extending mx.core.UIObject and nothing)
{
public static var socketManager:SocketManager;
private static var mySocket:XMLSocket;
private static var isSocketConnected:Boolean = false;
public var addEventListener:Function;
public var removeEventListener:Function;
private var dispatchEvent:Function;
public function SocketManager()
{
if ( SocketManager.socketManager != undefined )
throw new Error(Only one SocketManager should be
instantiated);
SocketManager.mySocket = new XMLSocket();
SocketManager.mySocket.onConnect = handleConnect;
SocketManager.mySocket.onClose = handleClose;
SocketManager.mySocket.onXML = handleIncoming;
SocketManager.socketManager = this;
var sm:Object = SocketManager.prototype;
EventDispatcher.initialize(sm);//also tried
UIEventDispatcher.initialize
}
public static function getInstance():SocketManager
{
if(SocketManager.socketManager == undefined)
SocketManager.socketManager = new SocketManager();
return SocketManager.socketManager;
}
public function connect()
{
if(!SocketManager.isSocketConnected)
{
if (!SocketManager.mySocket.connect(localhost,
1249))//--INSERT
PORT # HERE!!
throw new Error(SocketManager: socket
connection attempt failed
early);
}
else
throw new Error(SocketManager: connect method called
while
connected);
}
public function disconnect()
{
if(SocketManager.isSocketConnected)
{
SocketManager.mySocket.close();
SocketManager.isSocketConnected = false;
trace(SocketManager: closed socket);
}
else
throw new Error(SocketManager: disconnect method
called while not
connected);
}
private function handleConnect (succeeded) {
if(succeeded) {
trace(SocketManager: Socket connection attempt
succeeded);
SocketManager.isSocketConnected = true;
dispatchEvent({type:onSocketOpen});
} else {
throw new Error(SocketManager: Socket connection
attempt failed);
}
}
private function handleClose () {
trace(SocketManager: server closed connection);
SocketManager.isSocketConnected = false;
dispatchEvent({type:onSocketClose});
}
private function handleIncoming (messageObj) {
// display the received xml data in the output window
trace( + messageObj.toString() + );
}
}
then, in other objects i have
SocketManager.getInstance().addEventListener(onSocketOpen,
mx.utils.Delegate.create(this,onSocketOpen));
but it never gets called...
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[flexcoders] Re: dispatchEvent in AS class?
You need access to the EventDispatcher, which is natively mixed in
with any
UIObject subclass (which is why all MXML components can use it.
You can either subclass your class from UIObject, or initialize the
Event
Dispatcher with your class. The latter would look like this:
import mx.events.EventDispatcher;
function YourConstructor(){
EventDispatcher.initialize(this);
}
I tried that (just as you typed it), and a variation of that is in my
example code:
var sm:Object = SocketManager.prototype;
EventDispatcher.initialize(sm);//also tried
UIEventDispatcher.initialize and EventDispatcher.initialize(this)
I still get the weird warning when my class tries to call dispatchEvent
that says Warning: dispatchEvent is not a function.
Any more ideas?
Thanks,
Sean McKibben
At 05:49 PM 4/29/2005, you wrote:
I'm trying to wrap an XMLSocket object in a singleton class to manage
my (single) XMLSocket connection, but I can't seem to get it to throw
any events. Is it that I need to put it into my .mxml file as a
component or something? Right now it is just an actionScript class.
I was wanting to stick to the cairngorm framework's delegate model,
but
my SocketManager actually initiates commands from the server it is
connected to (the whole point of my XMLSocket) so this class will
need
to dispatch a bunch events, preferably using the
addEventListener+dispatchEvent model.
Whenever the socket connection succeeds, I get my SocketManager:
Socket connection attempt succeeded trace statement, then I get a
warning which says Warning: dispatchEvent is not a function which
leads me to believe that the EventDispatcher voodoo I'm doing in my
constructor isn't working. Is it possible to send events like this?
Any help is appreciated.
Thanks,
Sean McKibben
(code below)
import com.iterationtwo.cairngorm.business.*;
import mx.utils.Delegate;
import mx.events.*;
[Event(onSocketOpen)]
[Event(onSocketClose)]
class com.client.capture.business.SocketManager extends MovieClip
//(also tried extending mx.core.UIObject and nothing)
{
public static var socketManager:SocketManager;
private static var mySocket:XMLSocket;
private static var isSocketConnected:Boolean = false;
public var addEventListener:Function;
public var removeEventListener:Function;
private var dispatchEvent:Function;
public function SocketManager()
{
if ( SocketManager.socketManager != undefined )
throw new Error(Only one SocketManager should be
instantiated);
SocketManager.mySocket = new XMLSocket();
SocketManager.mySocket.onConnect = handleConnect;
SocketManager.mySocket.onClose = handleClose;
SocketManager.mySocket.onXML = handleIncoming;
SocketManager.socketManager = this;
var sm:Object = SocketManager.prototype;
EventDispatcher.initialize(sm);//also tried
UIEventDispatcher.initialize
}
public static function getInstance():SocketManager
{
if(SocketManager.socketManager == undefined)
SocketManager.socketManager = new SocketManager();
return SocketManager.socketManager;
}
public function connect()
{
if(!SocketManager.isSocketConnected)
{
if (!SocketManager.mySocket.connect(localhost,
1249))//--INSERT
PORT # HERE!!
throw new Error(SocketManager: socket connection
attempt failed
early);
}
else
throw new Error(SocketManager: connect method called
while
connected);
}
public function disconnect()
{
if(SocketManager.isSocketConnected)
{
SocketManager.mySocket.close();
SocketManager.isSocketConnected = false;
trace(SocketManager: closed socket);
}
else
throw new Error(SocketManager: disconnect method
called while not
connected);
}
private function handleConnect (succeeded) {
if(succeeded) {
trace(SocketManager: Socket connection attempt
succeeded);
SocketManager.isSocketConnected = true;
dispatchEvent({type:onSocketOpen});
} else {
throw new Error(SocketManager: Socket connection
attempt failed);
}
}
private function handleClose () {
trace(SocketManager: server closed connection);
SocketManager.isSocketConnected = false;
dispatchEvent({type:onSocketClose});
}
private function handleIncoming (messageObj) {
// display the received xml data in the output window
trace( + messageObj.toString() + );
}
}
then, in other objects i have
SocketManager.getInstance().addEventListener(onSocketOpen,
mx.utils.Delegate.create(this,onSocketOpen));
but it never gets called...
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