RE: Storing complex Data structures ?
You can also store your complexe data structures in a xml file by using XML::Simple module. http://search.cpan.org/author/GRANTM/XML-Simple-1.08/Simple.pm José. -Original Message- From: Rowan Reid [mailto:[EMAIL PROTECTED]] Sent: Tuesday, September 10, 2002 8:39 PM To: 'Perl beginners' Subject: RE: Storing complex Data structures ? No. You access the data through %COMPANY_DB. That's the whole point of tie(). The object $db is used only if you need to call additional methods of MLDBM on it. You really don't even need to save $db, because you can always get it via: tied(%COMPANY_DB) This is what I did previously, but whenever I closed the data file And tried to re-open it the data could nto be retrieved. I was under The impression that DB-File was able to store referenced data. perldoc -f tie perldoc -f tied perldoc perltie -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] DISCLAIMER This e-mail and any attachment thereto may contain information which is confidential and/or protected by intellectual property rights and are intended for the sole use of the recipient(s) named above. Any use of the information contained herein (including, but not limited to, total or partial reproduction, communication or distribution in any form) by other persons than the designated recipient(s) is prohibited. If you have received this e-mail in error, please notify the sender either by telephone or by e-mail and delete the material from any computer. Thank you for your cooperation. For further information about Proximus mobile phone services please see our website at http://www.proximus.be or refer to any Proximus agent. -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Storing complex Data structures ?
What is the correct way to access and store complex data structures to a file. I.e. hashes with several references. The method I have been using is as follows tie (%COMPANY_DB,'MLDBM','studio3.db',O_RDWR|O_CREAT,0777,$DB_BTREE) || die $!; Also DB_File. I'm realizing from previous help that I have to access this as an Object as in $db = tie (%COMPANY_DB,'MLDBM','studio3.db',O_RDWR|O_CREAT,0777,$DB_BTREE) || die $!; Where in my %COMPANY_DB %COMPANY_DB -@employee -n - %info name='name' address =@address And so forth what would be the correct way to access contents of the data structure using the object $db ? Thanks in advance. Rowan Reid Job Captain, Systems Administrator STUDIO 3 ARCHITECTS 909 982 1717 -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Storing complex Data structures ?
On Tue, Sep 10, 2002 at 11:17:33AM -0700, Rowan Reid wrote: What is the correct way to access and store complex data structures to a file. I.e. hashes with several references. This is Perl. There is no correct way. But you could take a look at Data::Dumper and Storable for other solutions. You might also like to investigate YAML. -- Paul Johnson - [EMAIL PROTECTED] http://www.pjcj.net -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: Storing complex Data structures ?
-Original Message- From: Rowan Reid [mailto:[EMAIL PROTECTED]] Sent: Tuesday, September 10, 2002 2:18 PM To: 'Perl beginners' Subject: Storing complex Data structures ? What is the correct way to access and store complex data structures to a file. I.e. hashes with several references. The method I have been using is as follows tie (%COMPANY_DB,'MLDBM','studio3.db',O_RDWR|O_CREAT,0777,$DB_BTREE) || die $!; Also DB_File. I'm realizing from previous help that I have to access this as an Object as in $db = tie (%COMPANY_DB,'MLDBM','studio3.db',O_RDWR|O_CREAT,0777,$DB_BTRE E) || die $!; Where in my %COMPANY_DB %COMPANY_DB -@employee -n - %info name='name' address =@address And so forth what would be the correct way to access contents of the data structure using the object $db ? No. You access the data through %COMPANY_DB. That's the whole point of tie(). The object $db is used only if you need to call additional methods of MLDBM on it. You really don't even need to save $db, because you can always get it via: tied(%COMPANY_DB) perldoc -f tie perldoc -f tied perldoc perltie -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: Storing complex Data structures ?
No. You access the data through %COMPANY_DB. That's the whole point of tie(). The object $db is used only if you need to call additional methods of MLDBM on it. You really don't even need to save $db, because you can always get it via: tied(%COMPANY_DB) This is what I did previously, but whenever I closed the data file And tried to re-open it the data could nto be retrieved. I was under The impression that DB-File was able to store referenced data. perldoc -f tie perldoc -f tied perldoc perltie -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
