RE: Coldfusion and COM Limitations
We have a site which we are considering moving to CF from ASP. The site makes extensive use of COM objects so I wondered if they could be *easily* re-used. Does anyone know any restrictions/limitations or any other gothcas which could cause a problem? This REALLY depends on your version of ColdFusion CF4.5's COM support was pathetic at best CF5's is a lot better, but still not perfect CFMX's is meant to be almost as good as you can get It also depends on what you want to call In CF4.5 you can't call Methods that take parameters In CF5 you can only call these in a limited way (and you have to know the translation values for some defaults) Not sure on CFMX as I haven't loaded it yet g Philip Arnold Technical Director Certified ColdFusion Developer ASP Multimedia Limited Switchboard: +44 (0)20 8680 8099 Fax: +44 (0)20 8686 7911 www.aspmedia.co.uk www.aspevents.net An ISO9001 registered company. ** This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. ** __ This list and all House of Fusion resources hosted by CFHosting.com. The place for dependable ColdFusion Hosting. FAQ: http://www.thenetprofits.co.uk/coldfusion/faq Archives: http://www.mail-archive.com/cf-talk@houseoffusion.com/ Unsubscribe: http://www.houseoffusion.com/index.cfm?sidebar=lists
RE: Coldfusion and COM Limitations
CF4.5's COM support was pathetic at best CF5's is a lot better, but still not perfect CFMX's is meant to be almost as good as you can get I'd dispute that. I've run several COM apps that worked with CF 4 and 5 (and even CF 3!) on CF MX, and some work while others don't. CF MX uses a third-party COM interface for Java, JIntegra. I suspect that it has some limitations. It also depends on what you want to call In CF4.5 you can't call Methods that take parameters In CF5 you can only call these in a limited way (and you have to know the translation values for some defaults) Not sure on CFMX as I haven't loaded it yet g I don't think this is an accurate representation; I think you can call methods that take parameters in CF 3 and newer versions, as long as those parameters can be represented as strings or Variants. That hasn't changed much in newer versions, either. Dave Watts, CTO, Fig Leaf Software http://www.figleaf.com/ phone: 202-797-5496 fax: 202-797-5444 __ This list and all House of Fusion resources hosted by CFHosting.com. The place for dependable ColdFusion Hosting. FAQ: http://www.thenetprofits.co.uk/coldfusion/faq Archives: http://www.mail-archive.com/cf-talk@houseoffusion.com/ Unsubscribe: http://www.houseoffusion.com/index.cfm?sidebar=lists
RE: Coldfusion and COM Limitations
We have a site which we are considering moving to CF from ASP. The site makes extensive use of COM objects so I wondered if they could be *easily* re-used. Does anyone know any restrictions/limitations or any other gothcas which could cause a problem? Yes, unfortunately, there are many problems that could occur. COM support in CF has never come close to that in ASP. CF can't handle object hierarchies well (you have to create pointers to each hierarchy level in CF 5 and earlier, I think), it can't deal with certain COM datatypes, it doesn't support all of the functionality of MTS (which is often used in well-architected ASP sites). Now, that all being said, this doesn't mean that your site won't be able to use CF. It does mean that you'll need to test each COM object from CF, which shouldn't take very long. Dave Watts, CTO, Fig Leaf Software http://www.figleaf.com/ phone: 202-797-5496 fax: 202-797-5444 __ Get the mailserver that powers this list at http://www.coolfusion.com FAQ: http://www.thenetprofits.co.uk/coldfusion/faq Archives: http://www.mail-archive.com/cf-talk@houseoffusion.com/ Unsubscribe: http://www.houseoffusion.com/index.cfm?sidebar=lists
RE: Coldfusion and COM Limitations
I'd dispute that. I've run several COM apps that worked with CF 4 and 5 (and even CF 3!) on CF MX, and some work while others don't. CF MX uses a third-party COM interface for Java, JIntegra. I suspect that it has some limitations. True, I should have put As good as they've got - it's better than previous versions, but FAR from perfect... I don't think this is an accurate representation; I think you can call methods that take parameters in CF 3 and newer versions, as long as those parameters can be represented as strings or Variants. That hasn't changed much in newer versions, either. In CF4.x I couldn't get methods with parameters to work at all, they work better in CF5, but still not perfect, I never tried in CF3, so I can't comment on that Simple things like .replace() just wouldn't work in CF4.5 for me Philip Arnold Technical Director Certified ColdFusion Developer ASP Multimedia Limited Switchboard: +44 (0)20 8680 8099 Fax: +44 (0)20 8686 7911 www.aspmedia.co.uk www.aspevents.net An ISO9001 registered company. ** This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. ** __ Signup for the Fusion Authority news alert and keep up with the latest news in ColdFusion and related topics. http://www.fusionauthority.com/signup.cfm FAQ: http://www.thenetprofits.co.uk/coldfusion/faq Archives: http://www.mail-archive.com/cf-talk@houseoffusion.com/ Unsubscribe: http://www.houseoffusion.com/index.cfm?sidebar=lists
RE: Coldfusion and COM Limitations
Thanks for the feedback I've never used COM so I'm hoping it wont be too much trouble. Is it true that once the object is loaded in memory it can be destroyed from CF? Kola -Original Message- From: Philip Arnold - ASP [mailto:[EMAIL PROTECTED]] Sent: 31 May 2002 14:22 To: CF-Talk Subject: RE: Coldfusion and COM Limitations I'd dispute that. I've run several COM apps that worked with CF 4 and 5 (and even CF 3!) on CF MX, and some work while others don't. CF MX uses a third-party COM interface for Java, JIntegra. I suspect that it has some limitations. True, I should have put As good as they've got - it's better than previous versions, but FAR from perfect... I don't think this is an accurate representation; I think you can call methods that take parameters in CF 3 and newer versions, as long as those parameters can be represented as strings or Variants. That hasn't changed much in newer versions, either. In CF4.x I couldn't get methods with parameters to work at all, they work better in CF5, but still not perfect, I never tried in CF3, so I can't comment on that Simple things like .replace() just wouldn't work in CF4.5 for me Philip Arnold Technical Director Certified ColdFusion Developer ASP Multimedia Limited Switchboard: +44 (0)20 8680 8099 Fax: +44 (0)20 8686 7911 www.aspmedia.co.uk www.aspevents.net An ISO9001 registered company. ** This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. ** __ This list and all House of Fusion resources hosted by CFHosting.com. The place for dependable ColdFusion Hosting. FAQ: http://www.thenetprofits.co.uk/coldfusion/faq Archives: http://www.mail-archive.com/cf-talk@houseoffusion.com/ Unsubscribe: http://www.houseoffusion.com/index.cfm?sidebar=lists
Re: Coldfusion and COM Limitations
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Kola Oyedeji wrote: |Thanks for the feedback | |I've never used COM so I'm hoping it wont be too much trouble. |Is it true that once the object is loaded in memory it can be destroyed |from CF? yeah just set the com object to something else ie a com object is called com_object1 cfset com_object1= kills it z -BEGIN PGP SIGNATURE- Version: GnuPG v1.0.6-2 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iEYEARECAAYFAjz3gy4ACgkQm98oI6K7h0hWoQCcDpTYb26cMfLsMfMhFqOWPN+c QN8An395/RsJ0p/Zwbhd7ajnhPzentXp =dJ+a -END PGP SIGNATURE- __ Your ad could be here. Monies from ads go to support these lists and provide more resources for the community. http://www.fusionauthority.com/ads.cfm FAQ: http://www.thenetprofits.co.uk/coldfusion/faq Archives: http://www.mail-archive.com/cf-talk@houseoffusion.com/ Unsubscribe: http://www.houseoffusion.com/index.cfm?sidebar=lists
Re: Coldfusion and COM Limitations (Test Results)
From Macromedia documention (ColdFusion MX - Migrating ColdFusion 5 Applications) Marcomedia has admitted calling COM Objects to be slower in CFMX cause they use JNI. Macromedia tests results for calling COM Objects were ColdFusion 5 completed = 50 Milliseconds ColdFusion MX completed = 2-3 seconds. Joe - Original Message - From: Philip Arnold - ASP [EMAIL PROTECTED] To: CF-Talk [EMAIL PROTECTED] Sent: Friday, May 31, 2002 9:22 AM Subject: RE: Coldfusion and COM Limitations I'd dispute that. I've run several COM apps that worked with CF 4 and 5 (and even CF 3!) on CF MX, and some work while others don't. CF MX uses a third-party COM interface for Java, JIntegra. I suspect that it has some limitations. True, I should have put As good as they've got - it's better than previous versions, but FAR from perfect... I don't think this is an accurate representation; I think you can call methods that take parameters in CF 3 and newer versions, as long as those parameters can be represented as strings or Variants. That hasn't changed much in newer versions, either. In CF4.x I couldn't get methods with parameters to work at all, they work better in CF5, but still not perfect, I never tried in CF3, so I can't comment on that Simple things like .replace() just wouldn't work in CF4.5 for me Philip Arnold Technical Director Certified ColdFusion Developer ASP Multimedia Limited Switchboard: +44 (0)20 8680 8099 Fax: +44 (0)20 8686 7911 www.aspmedia.co.uk www.aspevents.net An ISO9001 registered company. ** This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. ** __ Get the mailserver that powers this list at http://www.coolfusion.com FAQ: http://www.thenetprofits.co.uk/coldfusion/faq Archives: http://www.mail-archive.com/cf-talk@houseoffusion.com/ Unsubscribe: http://www.houseoffusion.com/index.cfm?sidebar=lists
RE: Coldfusion and COM Limitations
I've never used COM so I'm hoping it wont be too much trouble. Is it true that once the object is loaded in memory it can be destroyed from CF? yeah just set the com object to something else ie a com object is called com_object1 cfset com_object1= kills it Unfortunately, this doesn't always work, so you'll need to test with the specific platform (Windows version CF version) and COM objects. Dave Watts, CTO, Fig Leaf Software http://www.figleaf.com/ phone: 202-797-5496 fax: 202-797-5444 __ Your ad could be here. Monies from ads go to support these lists and provide more resources for the community. http://www.fusionauthority.com/ads.cfm FAQ: http://www.thenetprofits.co.uk/coldfusion/faq Archives: http://www.mail-archive.com/cf-talk@houseoffusion.com/ Unsubscribe: http://www.houseoffusion.com/index.cfm?sidebar=lists
RE: Coldfusion and COM Limitations (Test Results)
From Macromedia documention (ColdFusion MX - Migrating ColdFusion 5 Applications) Marcomedia has admitted calling COM Objects to be slower in CFMX cause they use JNI. Macromedia tests results for calling COM Objects were ColdFusion 5 completed = 50 Milliseconds ColdFusion MX completed = 2-3 seconds. That's really funny - when Jeremy was over in the UK, I complained about how pathetic the COM implementation was, and they said it was the best they've had Might be slow, but still could be the most powerful - yet to test it to it's limit... Philip Arnold Technical Director Certified ColdFusion Developer ASP Multimedia Limited Switchboard: +44 (0)20 8680 8099 Fax: +44 (0)20 8686 7911 www.aspmedia.co.uk www.aspevents.net An ISO9001 registered company. ** This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. ** __ Signup for the Fusion Authority news alert and keep up with the latest news in ColdFusion and related topics. http://www.fusionauthority.com/signup.cfm FAQ: http://www.thenetprofits.co.uk/coldfusion/faq Archives: http://www.mail-archive.com/cf-talk@houseoffusion.com/ Unsubscribe: http://www.houseoffusion.com/index.cfm?sidebar=lists
RE: Coldfusion and COM Limitations
I've never used COM so I'm hoping it wont be too much trouble. COM, not too much trouble? HAHAHAHAHAHAHA! Sorry... Haven't had such a good laugh in ages COM can be a nightmare at times - don't go in thinking that it's going to be an easy process - if the COM object doesn't expost it's properties and methods cleanly, then you'll have major problems... Then again, as long as you're doing really simple things, they can work really well and can be surprisingly clean Philip Arnold Technical Director Certified ColdFusion Developer ASP Multimedia Limited Switchboard: +44 (0)20 8680 8099 Fax: +44 (0)20 8686 7911 www.aspmedia.co.uk www.aspevents.net An ISO9001 registered company. ** This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. ** __ This list and all House of Fusion resources hosted by CFHosting.com. The place for dependable ColdFusion Hosting. FAQ: http://www.thenetprofits.co.uk/coldfusion/faq Archives: http://www.mail-archive.com/cf-talk@houseoffusion.com/ Unsubscribe: http://www.houseoffusion.com/index.cfm?sidebar=lists
RE: Coldfusion and COM Limitations
Well Perhaps I'll re-write it with cfcs instead!! Kola -Original Message- From: Philip Arnold - ASP [mailto:[EMAIL PROTECTED]] Sent: 31 May 2002 15:09 To: CF-Talk Subject: RE: Coldfusion and COM Limitations I've never used COM so I'm hoping it wont be too much trouble. COM, not too much trouble? HAHAHAHAHAHAHA! Sorry... Haven't had such a good laugh in ages COM can be a nightmare at times - don't go in thinking that it's going to be an easy process - if the COM object doesn't expost it's properties and methods cleanly, then you'll have major problems... Then again, as long as you're doing really simple things, they can work really well and can be surprisingly clean Philip Arnold Technical Director Certified ColdFusion Developer ASP Multimedia Limited Switchboard: +44 (0)20 8680 8099 Fax: +44 (0)20 8686 7911 www.aspmedia.co.uk www.aspevents.net An ISO9001 registered company. ** This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. ** __ Your ad could be here. Monies from ads go to support these lists and provide more resources for the community. http://www.fusionauthority.com/ads.cfm FAQ: http://www.thenetprofits.co.uk/coldfusion/faq Archives: http://www.mail-archive.com/cf-talk@houseoffusion.com/ Unsubscribe: http://www.houseoffusion.com/index.cfm?sidebar=lists
