RE: Structures, Arrays, and WDDX oh my
Yes, I'd like to see your tag, please. thanks, Chris Norloff -- Original Message -- From: "Jeremy Allen" [EMAIL PROTECTED] Reply-To: [EMAIL PROTECTED] Date: Fri, 25 Aug 2000 15:24:13 -0400 I wrote a tag CF_DumpClientvars if anyone is interested. CF_objectDump does not cover client variables. If anyone is interested contact me offlist and I will set you up with it. Jeremy Allen [EMAIL PROTECTED] [Insert cool title here] -Original Message- From: Sharon DiOrio [mailto:[EMAIL PROTECTED]] Sent: Friday, August 25, 2000 3:14 PM To: [EMAIL PROTECTED] Cc: [EMAIL PROTECTED] Subject: Re: Structures, Arrays, and WDDX oh my Do not limit your usage of structures and arrays based on memory concerns. Spectra makes *heavy* use of both in the realm way beyond what the average CF user would even think of attempting. I have a couple of applications with structures nested 8 layers deep with thousands of records with no visible impact on memory. You should also know that you can save these complex data types (arrays, structures, queries) to scoped variables like SESSION and APPLICATION (with proper locking, of course.) I don't know anything about deleting all structures on a server, but if you run a "structClear()" on a scope (SESSION, SERVER, APPLICATION) it will wipe out all variables stored in that scope because the scopes are actually structures. structDelete() will delete one key from a structure. I also recommend to anyone playing with complex datatypes to either download cf_objectDump from the tag gallary, or if you have Spectra, using cfa_dump to visually "see" your structures, arrays, etc. Sharon -Original Message- From: Robert Everland [EMAIL PROTECTED] To: '[EMAIL PROTECTED]' [EMAIL PROTECTED] Date: Friday, August 25, 2000 2:59 PM Subject: Structures, Arrays, and WDDX oh my Alright I am going to start using structures and arrays and turn them to wddx so I don't have to rely on hidden form fields anymore. Now the question I have is, when I use a structure and/or array how much memory does it take? I know I can delete structures but I remember seeing that some people would have problems when doing a structure delete all(don't know exact sytax on hand) and it would delete all structures on the machine? Is this still a problem and if so how would I overcome it. Robert Everland III Web Developer Dixon Ticonderoga --- --- Archives: http://www.mail-archive.com/cf-talk@houseoffusion.com/ To Unsubscribe visit http://www.houseoffusion.com/index.cfm?sidebar=listsbody=lists/cf_talk or send a message to [EMAIL PROTECTED] with 'unsubscribe' in the body. -- Archives: http://www.mail-archive.com/cf-talk@houseoffusion.com/ To Unsubscribe visit http://www.houseoffusion.com/index.cfm?sidebar=listsbody=lists/cf_talk or send a message to [EMAIL PROTECTED] with 'unsubscribe' in the body. -- Archives: http://www.mail-archive.com/cf-talk@houseoffusion.com/ To Unsubscribe visit http://www.houseoffusion.com/index.cfm?sidebar=listsbody=lists/cf_talk or send a message to [EMAIL PROTECTED] with 'unsubscribe' in the body. -- Archives: http://www.mail-archive.com/cf-talk@houseoffusion.com/ To Unsubscribe visit http://www.houseoffusion.com/index.cfm?sidebar=listsbody=lists/cf_talk or send a message to [EMAIL PROTECTED] with 'unsubscribe' in the body.
Structures, Arrays, and WDDX oh my
Alright I am going to start using structures and arrays and turn them to wddx so I don't have to rely on hidden form fields anymore. Now the question I have is, when I use a structure and/or array how much memory does it take? I know I can delete structures but I remember seeing that some people would have problems when doing a structure delete all(don't know exact sytax on hand) and it would delete all structures on the machine? Is this still a problem and if so how would I overcome it. Robert Everland III Web Developer Dixon Ticonderoga -- Archives: http://www.mail-archive.com/cf-talk@houseoffusion.com/ To Unsubscribe visit http://www.houseoffusion.com/index.cfm?sidebar=listsbody=lists/cf_talk or send a message to [EMAIL PROTECTED] with 'unsubscribe' in the body.
Re: Structures, Arrays, and WDDX oh my
Do not limit your usage of structures and arrays based on memory concerns. Spectra makes *heavy* use of both in the realm way beyond what the average CF user would even think of attempting. I have a couple of applications with structures nested 8 layers deep with thousands of records with no visible impact on memory. You should also know that you can save these complex data types (arrays, structures, queries) to scoped variables like SESSION and APPLICATION (with proper locking, of course.) I don't know anything about deleting all structures on a server, but if you run a "structClear()" on a scope (SESSION, SERVER, APPLICATION) it will wipe out all variables stored in that scope because the scopes are actually structures. structDelete() will delete one key from a structure. I also recommend to anyone playing with complex datatypes to either download cf_objectDump from the tag gallary, or if you have Spectra, using cfa_dump to visually "see" your structures, arrays, etc. Sharon -Original Message- From: Robert Everland [EMAIL PROTECTED] To: '[EMAIL PROTECTED]' [EMAIL PROTECTED] Date: Friday, August 25, 2000 2:59 PM Subject: Structures, Arrays, and WDDX oh my Alright I am going to start using structures and arrays and turn them to wddx so I don't have to rely on hidden form fields anymore. Now the question I have is, when I use a structure and/or array how much memory does it take? I know I can delete structures but I remember seeing that some people would have problems when doing a structure delete all(don't know exact sytax on hand) and it would delete all structures on the machine? Is this still a problem and if so how would I overcome it. Robert Everland III Web Developer Dixon Ticonderoga --- --- Archives: http://www.mail-archive.com/cf-talk@houseoffusion.com/ To Unsubscribe visit http://www.houseoffusion.com/index.cfm?sidebar=listsbody=lists/cf_talk or send a message to [EMAIL PROTECTED] with 'unsubscribe' in the body. -- Archives: http://www.mail-archive.com/cf-talk@houseoffusion.com/ To Unsubscribe visit http://www.houseoffusion.com/index.cfm?sidebar=listsbody=lists/cf_talk or send a message to [EMAIL PROTECTED] with 'unsubscribe' in the body.
RE: Structures, Arrays, and WDDX oh my
I wrote a tag CF_DumpClientvars if anyone is interested. CF_objectDump does not cover client variables. If anyone is interested contact me offlist and I will set you up with it. Jeremy Allen [EMAIL PROTECTED] [Insert cool title here] -Original Message- From: Sharon DiOrio [mailto:[EMAIL PROTECTED]] Sent: Friday, August 25, 2000 3:14 PM To: [EMAIL PROTECTED] Cc: [EMAIL PROTECTED] Subject: Re: Structures, Arrays, and WDDX oh my Do not limit your usage of structures and arrays based on memory concerns. Spectra makes *heavy* use of both in the realm way beyond what the average CF user would even think of attempting. I have a couple of applications with structures nested 8 layers deep with thousands of records with no visible impact on memory. You should also know that you can save these complex data types (arrays, structures, queries) to scoped variables like SESSION and APPLICATION (with proper locking, of course.) I don't know anything about deleting all structures on a server, but if you run a "structClear()" on a scope (SESSION, SERVER, APPLICATION) it will wipe out all variables stored in that scope because the scopes are actually structures. structDelete() will delete one key from a structure. I also recommend to anyone playing with complex datatypes to either download cf_objectDump from the tag gallary, or if you have Spectra, using cfa_dump to visually "see" your structures, arrays, etc. Sharon -Original Message- From: Robert Everland [EMAIL PROTECTED] To: '[EMAIL PROTECTED]' [EMAIL PROTECTED] Date: Friday, August 25, 2000 2:59 PM Subject: Structures, Arrays, and WDDX oh my Alright I am going to start using structures and arrays and turn them to wddx so I don't have to rely on hidden form fields anymore. Now the question I have is, when I use a structure and/or array how much memory does it take? I know I can delete structures but I remember seeing that some people would have problems when doing a structure delete all(don't know exact sytax on hand) and it would delete all structures on the machine? Is this still a problem and if so how would I overcome it. Robert Everland III Web Developer Dixon Ticonderoga --- --- Archives: http://www.mail-archive.com/cf-talk@houseoffusion.com/ To Unsubscribe visit http://www.houseoffusion.com/index.cfm?sidebar=listsbody=lists/cf_talk or send a message to [EMAIL PROTECTED] with 'unsubscribe' in the body. -- Archives: http://www.mail-archive.com/cf-talk@houseoffusion.com/ To Unsubscribe visit http://www.houseoffusion.com/index.cfm?sidebar=listsbody=lists/cf_talk or send a message to [EMAIL PROTECTED] with 'unsubscribe' in the body. -- Archives: http://www.mail-archive.com/cf-talk@houseoffusion.com/ To Unsubscribe visit http://www.houseoffusion.com/index.cfm?sidebar=listsbody=lists/cf_talk or send a message to [EMAIL PROTECTED] with 'unsubscribe' in the body.
Sharon - RE: Structures, Arrays, and WDDX oh my
Hi Sharon, I was wondering if you could elaborate on your statement: You should also know that you can save these complex data types (arrays, structures, queries) to scoped variables like SESSION and APPLICATION (with proper locking, of course.) I too recently started using structures as session and application variables, but did not use any explicit locking. How is this done? JM -Original Message- From: Sharon DiOrio To: [EMAIL PROTECTED] Cc: [EMAIL PROTECTED] Sent: 25/08/00 3:14 PM Subject: Re: Structures, Arrays, and WDDX oh my Do not limit your usage of structures and arrays based on memory concerns. Spectra makes *heavy* use of both in the realm way beyond what the average CF user would even think of attempting. I have a couple of applications with structures nested 8 layers deep with thousands of records with no visible impact on memory. You should also know that you can save these complex data types (arrays, structures, queries) to scoped variables like SESSION and APPLICATION (with proper locking, of course.) I don't know anything about deleting all structures on a server, but if you run a "structClear()" on a scope (SESSION, SERVER, APPLICATION) it will wipe out all variables stored in that scope because the scopes are actually structures. structDelete() will delete one key from a structure. I also recommend to anyone playing with complex datatypes to either download cf_objectDump from the tag gallary, or if you have Spectra, using cfa_dump to visually "see" your structures, arrays, etc. Sharon -Original Message- From: Robert Everland [EMAIL PROTECTED] To: '[EMAIL PROTECTED]' [EMAIL PROTECTED] Date: Friday, August 25, 2000 2:59 PM Subject: Structures, Arrays, and WDDX oh my Alright I am going to start using structures and arrays and turn them to wddx so I don't have to rely on hidden form fields anymore. Now the question I have is, when I use a structure and/or array how much memory does it take? I know I can delete structures but I remember seeing that some people would have problems when doing a structure delete all(don't know exact sytax on hand) and it would delete all structures on the machine? Is this still a problem and if so how would I overcome it. Robert Everland III Web Developer Dixon Ticonderoga --- --- Archives: http://www.mail-archive.com/cf-talk@houseoffusion.com/ To Unsubscribe visit http://www.houseoffusion.com/index.cfm?sidebar=listsbody=lists/cf_talk or send a message to [EMAIL PROTECTED] with 'unsubscribe' in the body. -- Archives: http://www.mail-archive.com/cf-talk@houseoffusion.com/ To Unsubscribe visit http://www.houseoffusion.com/index.cfm?sidebar=listsbody=lists/cf_talk or send a message to [EMAIL PROTECTED] with 'unsubscribe' in the body. -- Archives: http://www.mail-archive.com/cf-talk@houseoffusion.com/ To Unsubscribe visit http://www.houseoffusion.com/index.cfm?sidebar=listsbody=lists/cf_talk or send a message to [EMAIL PROTECTED] with 'unsubscribe' in the body.
Locking (was RE: Structures, Arrays, and WDDX oh my)
There have been a couple of detailed discussions on this list about locking, but I'll give you a quick synopsis. CF introduced the concept of locking variables to prevent multiple read/writes of the same variable. Three scopes are affected: SESSION, APPLICATION and SERVER. Basically you need to use cflock around any reads or writes of these variables. CF doesn't explicitly require this (unless you turn on the option to throw errors on unlocked variables in the cfadmin) but it does a lot for application stability. !--- on write --- cflock scope="application" type="exclusive" timeout="10" cfset APPLICATION.myVar = "some Value" /cflock !--- then on read --- cflock scope="application" type="readonly" timeout="10" cfoutput#APPLICATION.myVar#/cfoutput /cflock I've found that copying variables to REQUEST scope (a scope available to any template - including custom tags - processed during a *single* request) at the beginning of any template that uses them (and copying them back, if they were changed by the template) to be the most efficient way of doing this. Sharon -Original Message- From: Milks, Jim [EMAIL PROTECTED] To: '[EMAIL PROTECTED]' [EMAIL PROTECTED] Date: Friday, August 25, 2000 3:30 PM Subject: Sharon - RE: Structures, Arrays, and WDDX oh my Hi Sharon, I was wondering if you could elaborate on your statement: You should also know that you can save these complex data types (arrays, structures, queries) to scoped variables like SESSION and APPLICATION (with proper locking, of course.) I too recently started using structures as session and application variables, but did not use any explicit locking. How is this done? JM -Original Message- From: Sharon DiOrio To: [EMAIL PROTECTED] Cc: [EMAIL PROTECTED] Sent: 25/08/00 3:14 PM Subject: Re: Structures, Arrays, and WDDX oh my Do not limit your usage of structures and arrays based on memory concerns. Spectra makes *heavy* use of both in the realm way beyond what the average CF user would even think of attempting. I have a couple of applications with structures nested 8 layers deep with thousands of records with no visible impact on memory. You should also know that you can save these complex data types (arrays, structures, queries) to scoped variables like SESSION and APPLICATION (with proper locking, of course.) I don't know anything about deleting all structures on a server, but if you run a "structClear()" on a scope (SESSION, SERVER, APPLICATION) it will wipe out all variables stored in that scope because the scopes are actually structures. structDelete() will delete one key from a structure. I also recommend to anyone playing with complex datatypes to either download cf_objectDump from the tag gallary, or if you have Spectra, using cfa_dump to visually "see" your structures, arrays, etc. Sharon -Original Message- From: Robert Everland [EMAIL PROTECTED] To: '[EMAIL PROTECTED]' [EMAIL PROTECTED] Date: Friday, August 25, 2000 2:59 PM Subject: Structures, Arrays, and WDDX oh my Alright I am going to start using structures and arrays and turn them to wddx so I don't have to rely on hidden form fields anymore. Now the question I have is, when I use a structure and/or array how much memory does it take? I know I can delete structures but I remember seeing that some people would have problems when doing a structure delete all(don't know exact sytax on hand) and it would delete all structures on the machine? Is this still a problem and if so how would I overcome it. Robert Everland III Web Developer Dixon Ticonderoga --- --- Archives: http://www.mail-archive.com/cf-talk@houseoffusion.com/ To Unsubscribe visit http://www.houseoffusion.com/index.cfm?sidebar=listsbody=lists/cf_talk or send a message to [EMAIL PROTECTED] with 'unsubscribe' in the body. -- Archives: http://www.mail-archive.com/cf-talk@houseoffusion.com/ To Unsubscribe visit http://www.houseoffusion.com/index.cfm?sidebar=listsbody=lists/cf_talk or send a message to [EMAIL PROTECTED] with 'unsubscribe' in the body. --- --- Archives: http://www.mail-archive.com/cf-talk@houseoffusion.com/ To Unsubscribe visit http://www.houseoffusion.com/index.cfm?sidebar=listsbody=lists/cf_talk or send a message to [EMAIL PROTECTED] with 'unsubscribe' in the body. -- Archives: http://www.mail-archive.com/cf-talk@houseoffusion.com/ To Unsubscribe visit http://www.houseoffusion.com/index.cfm?sidebar=listsbody=lists/cf_talk or send a message to [EMAIL PROTECTED] with 'unsubscribe' in the body.
RE: Locking (was RE: Structures, Arrays, and WDDX oh my)
Here's an article by Ben Forta on the very subject of locking vars: http://www.sys-con.com/coldfusion/archives/0208/forta/ Philip --snip-- I too recently started using structures as session and application variables, but did not use any explicit locking. How is this done? JM -- Archives: http://www.mail-archive.com/cf-talk@houseoffusion.com/ To Unsubscribe visit http://www.houseoffusion.com/index.cfm?sidebar=listsbody=lists/cf_talk or send a message to [EMAIL PROTECTED] with 'unsubscribe' in the body.