Data::Stag::HashDB 0.10

Developer:	Chris Mungall more software by author →
Price:	0.00
License:	GPL (GNU General Public License)
File size:	433K
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Data::Stag::HashDB is a perl used for building indexes over Stag files or objects.

SYNOPSIS

# parsing a file into a hash
my $hdb = Data::Stag::HashDB->new;
$hdb->unique_key("ss_details/social_security_no");
$hdb->record_type("person");
my $obj = {};
$hdb->index_hash($obj);
Data::Stag->parse(-file=>$fn, -handler=>$hdb);
my $person = $obj->{'999-9999-9999'};
print $person->xml;

# indexing an existing stag tree into a hash
my $personset = Data::Stag->parse($fn);
my $hdb = Data::Stag::HashDB->new;
$hdb->unique_key("ss_details/social_security_no");
$hdb->record_type("person");
my $obj = {};
$hdb->index_hash($obj);
$personset->sax($hdb);
my $person = $obj->{'999-9999-9999'};
print $person->xml;

You need to provide a record_type - this is the type of element that will be indexed

You need to provide a unique_key - this is a single value used to index the record_types

For example, if we have data in the stag structure below, and if ss_no is unique (we assume it is) then we can index all the people in the database using the code above

publicinfo:
persondata:
person:
ss_details:
social_security_no:
name:
address:

There is a subclass of this method callsed Data::Stag::StagDB, which makes the hash persistent

Requirements:

Perl
tags

data stag details social social security unique key record type stag hashdb 999 9999 stag parse person obj 9999 9999 you need person xml print person

Download Data::Stag::HashDB 0.10

http://ftp.hostingromania.ro/Linux/mirrors/ftp.cpan.org/authors/id/C/CM/CMUNGALL/Data-Stag-0.10.tar.gz

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