| 197 |
return $self->{'max_mfn'} = $maxmfn; |
return $self->{'max_mfn'} = $maxmfn; |
| 198 |
} |
} |
| 199 |
|
|
| 200 |
=head2 fetch_rec |
=head2 fetch |
| 201 |
|
|
| 202 |
Fetch next record from database. It will also displays progress bar. |
Fetch next record from database. It will also displays progress bar. |
| 203 |
|
|
| 204 |
my $rec = $webpac->fetch_rec; |
my $rec = $isis->fetch; |
| 205 |
|
|
| 206 |
You should rearly have the need to call this function directly. Instead use |
Record from this function should probably go to C<data_structure> for |
| 207 |
C<fetch_data_structure> which returns normalised data. |
normalisation. |
| 208 |
|
|
| 209 |
=cut |
=cut |
| 210 |
|
|
| 211 |
sub fetch_rec { |
sub fetch { |
| 212 |
my $self = shift; |
my $self = shift; |
| 213 |
|
|
| 214 |
my $log = $self->_get_logger(); |
my $log = $self->_get_logger(); |
| 238 |
} |
} |
| 239 |
} |
} |
| 240 |
|
|
| 241 |
=head2 fetch_data_structure |
=head2 pos |
| 242 |
|
|
| 243 |
Fetch data structure of next record from database. |
Returns current record number (MFN). |
| 244 |
|
|
| 245 |
|
print $isis->pos; |
| 246 |
|
|
| 247 |
my @ds = $webpac->fetch_data_structure; |
First record in database has position 1. |
| 248 |
|
|
| 249 |
=cut |
=cut |
| 250 |
|
|
| 251 |
sub fetch_data_structure { |
sub pos { |
| 252 |
my $self = shift; |
my $self = shift; |
| 253 |
|
return $self->{'current_mfn'}; |
| 254 |
|
} |
| 255 |
|
|
| 256 |
|
|
| 257 |
|
=head2 size |
| 258 |
|
|
| 259 |
|
Returns number of records in database |
| 260 |
|
|
| 261 |
|
print $isis->size; |
| 262 |
|
|
| 263 |
|
=cut |
| 264 |
|
|
| 265 |
return $self->data_structure( |
sub size { |
| 266 |
$self->fetch_rec(@_) |
my $self = shift; |
| 267 |
); |
return $self->{'max_mfn'}; |
| 268 |
} |
} |
| 269 |
|
|
| 270 |
=head2 mfn |
=head2 seek |
| 271 |
|
|
| 272 |
Returns current record number (MFN). |
Seek to specified MFN in file. |
| 273 |
|
|
| 274 |
|
$isis->seek(42); |
| 275 |
|
|
| 276 |
print $webpac->mfn; |
First record in database has position 1. |
| 277 |
|
|
| 278 |
=cut |
=cut |
| 279 |
|
|
| 280 |
sub mfn { |
sub seek { |
| 281 |
my $self = shift; |
my $self = shift; |
| 282 |
return $self->{'current_mfn'}; |
my $pos = shift || return; |
| 283 |
|
|
| 284 |
|
my $log = $self->_get_logger(); |
| 285 |
|
|
| 286 |
|
if ($pos < 1) { |
| 287 |
|
$log->warn("seek before first record"); |
| 288 |
|
$pos = 1; |
| 289 |
|
} elsif ($pos > $self->{'max_mfn'}) { |
| 290 |
|
$log->warn("seek beyond last record"); |
| 291 |
|
$pos = $self->{'max_mfn'}; |
| 292 |
|
} |
| 293 |
|
|
| 294 |
|
return $self->{'current_mfn'} = (($pos - 1) || -1); |
| 295 |
} |
} |
| 296 |
|
|
| 297 |
=head1 AUTHOR |
=head1 AUTHOR |
Parent Directory
| 
Revision Log
| 
Patch