1 |
joko |
1.11 |
## ------------------------------------------------------------------------ |
2 |
joko |
1.14 |
## $Id: Abstract.pm,v 1.13 2003/01/30 22:27:05 joko Exp $ |
3 |
joko |
1.11 |
## ------------------------------------------------------------------------ |
4 |
joko |
1.7 |
## $Log: Abstract.pm,v $ |
5 |
joko |
1.14 |
## Revision 1.13 2003/01/30 22:27:05 joko |
6 |
|
|
## + added new abstract methods |
7 |
|
|
## |
8 |
joko |
1.13 |
## Revision 1.12 2003/01/30 21:46:32 joko |
9 |
|
|
## + fixed behaviour of AUTOLOAD-method |
10 |
|
|
## |
11 |
joko |
1.12 |
## Revision 1.11 2003/01/20 16:43:18 joko |
12 |
|
|
## + better argument-property merging |
13 |
|
|
## + debugging-output !!! |
14 |
|
|
## + abstract-dummy 'sub createChildNode' |
15 |
|
|
## |
16 |
joko |
1.11 |
## Revision 1.10 2003/01/19 02:31:51 joko |
17 |
|
|
## + fix to 'sub AUTOLOAD' |
18 |
|
|
## |
19 |
joko |
1.10 |
## Revision 1.9 2002/12/19 16:30:23 joko |
20 |
|
|
## + added 'sub dropDb' and 'sub rebuildDb' as croakers for concrete implementations of methods in proper handlers |
21 |
|
|
## |
22 |
joko |
1.9 |
## Revision 1.8 2002/12/13 21:48:35 joko |
23 |
|
|
## + sub _abstract_function |
24 |
|
|
## |
25 |
joko |
1.8 |
## Revision 1.7 2002/12/05 07:57:48 joko |
26 |
|
|
## + now using Tie::SecureHash as a base for the COREHANDLE |
27 |
|
|
## + former public COREHANDLE becomes private _COREHANDLE now |
28 |
|
|
## |
29 |
joko |
1.7 |
## Revision 1.6 2002/12/03 15:52:24 joko |
30 |
|
|
## + fix/feature: if dispatching to deep core method fails (is not declared), try method at Data::Storage - level |
31 |
|
|
## |
32 |
|
|
## Revision 1.5 2002/12/01 22:19:33 joko |
33 |
|
|
## + just disconnect if COREHANDLE exists |
34 |
|
|
## |
35 |
|
|
## Revision 1.4 2002/12/01 04:45:38 joko |
36 |
|
|
## + sub eraseAll |
37 |
|
|
## + sub createDb |
38 |
|
|
## |
39 |
|
|
## Revision 1.3 2002/11/29 04:58:20 joko |
40 |
|
|
## + Storage::Result now uses the same dispatching mechanism like Storage::Handler |
41 |
|
|
## |
42 |
|
|
## Revision 1.2 2002/10/17 00:08:07 joko |
43 |
|
|
## + bugfixes regarding "deep recursion" stuff |
44 |
|
|
## |
45 |
|
|
## Revision 1.1 2002/10/10 03:44:07 cvsjoko |
46 |
|
|
## + new |
47 |
joko |
1.11 |
## ------------------------------------------------------------------------ |
48 |
joko |
1.7 |
|
49 |
cvsjoko |
1.1 |
|
50 |
|
|
package Data::Storage::Handler::Abstract; |
51 |
|
|
|
52 |
|
|
use strict; |
53 |
|
|
use warnings; |
54 |
|
|
|
55 |
joko |
1.8 |
use base qw( DesignPattern::Object ); |
56 |
|
|
|
57 |
joko |
1.11 |
|
58 |
cvsjoko |
1.1 |
use Data::Dumper; |
59 |
joko |
1.7 |
use Tie::SecureHash; |
60 |
|
|
#use Data::Storage::Handler; |
61 |
joko |
1.11 |
use Data::Transform::Deep qw( merge ); |
62 |
|
|
|
63 |
cvsjoko |
1.1 |
|
64 |
|
|
# get logger instance |
65 |
|
|
my $logger = Log::Dispatch::Config->instance; |
66 |
|
|
|
67 |
|
|
#our $lock_info; |
68 |
|
|
|
69 |
|
|
sub new { |
70 |
|
|
my $invocant = shift; |
71 |
|
|
my $class = ref($invocant) || $invocant; |
72 |
|
|
|
73 |
|
|
# logging info about the actual handler called |
74 |
|
|
$logger->debug( "$invocant->new( @_ )" ); |
75 |
joko |
1.2 |
#$logger->debug( __PACKAGE__ . "->" . "new()" ); |
76 |
cvsjoko |
1.1 |
|
77 |
joko |
1.7 |
# V1 - arguments become properties automagically / normal perl mode blessing |
78 |
|
|
=pod |
79 |
|
|
# autovivify passed-in arguments as future object attributes into to-be-blessed hash |
80 |
joko |
1.3 |
my $self = { @_ }; |
81 |
|
|
# create object from blessed hash-reference |
82 |
|
|
bless $self, $class; |
83 |
joko |
1.7 |
=cut |
84 |
|
|
|
85 |
joko |
1.10 |
#=pod |
86 |
joko |
1.7 |
# V2 - maybe more convenient/secure? utilizing Damian Conway's Tie::SecureHash... |
87 |
|
|
my $self = Tie::SecureHash->new( |
88 |
|
|
$class, |
89 |
|
|
# that's it: |
90 |
|
|
'metainfo' => undef, |
91 |
|
|
'lock_info' => undef, |
92 |
|
|
'_COREHANDLE' => undef, |
93 |
|
|
'meta' => undef, |
94 |
|
|
'locator' => undef, |
95 |
|
|
'dataStorageLayer' => undef, |
96 |
|
|
'dbi' => undef, |
97 |
|
|
# tries: |
98 |
|
|
#'Data::Storage::Handler::Abstract::metainfo' => undef, |
99 |
|
|
#'dataStorageLayer' |
100 |
|
|
#'Data::Storage::Handler::Abstract::dataStorageLayer' => undef, |
101 |
|
|
#'Data::Storage::Handler::Tangram::dataStorageLayer' => undef, |
102 |
|
|
#'Data::Dumper::locator' => undef, |
103 |
|
|
#$class . '::locator' => undef, |
104 |
|
|
#'Data::Storage::Handler::Tangram::locator' => undef, |
105 |
|
|
#'Data::Storage::Handler::DBI::locator' => undef, |
106 |
|
|
#_protected => , |
107 |
|
|
#__private => , |
108 |
|
|
); |
109 |
joko |
1.10 |
#=cut |
110 |
joko |
1.7 |
|
111 |
|
|
# merge passed-in arguments to constructor as properties into already blessed secure object |
112 |
joko |
1.11 |
|
113 |
joko |
1.7 |
# mungle arguments from array into hash - perl does the job ;) |
114 |
joko |
1.11 |
#my %args = @_; |
115 |
|
|
#my %args = (); |
116 |
|
|
|
117 |
|
|
#print Dumper(@_); |
118 |
|
|
|
119 |
joko |
1.7 |
# merge attributes one-by-one |
120 |
|
|
# TODO: deep_copy? / merge_deep? |
121 |
joko |
1.11 |
while (my $elemName = shift @_) { |
122 |
|
|
#print "elemName: $elemName", "\n"; |
123 |
|
|
if (my $elemValue = shift @_) { |
124 |
|
|
#print Dumper($elemValue); |
125 |
|
|
#print "elemName=$elemName, elemValue=$elemValue", "\n"; |
126 |
|
|
$self->{$elemName} = $elemValue; |
127 |
|
|
} |
128 |
|
|
#$self->{$_} = $args{$_}; |
129 |
|
|
#$self->{$_} = $args{$_}; |
130 |
joko |
1.7 |
} |
131 |
|
|
|
132 |
|
|
# V3 - rolling our own security (just for {COREHANDLE} - nothing else) - nope, Tie::SecureHash works wonderful |
133 |
|
|
#my $self = { @_ }; |
134 |
|
|
#bless $self, $class; |
135 |
|
|
|
136 |
|
|
|
137 |
joko |
1.3 |
|
138 |
cvsjoko |
1.1 |
# handle meta data |
139 |
joko |
1.3 |
#my $metainfo = $self->getMetaInfo($class); |
140 |
|
|
my $metainfo = $self->getMetaInfo(); |
141 |
cvsjoko |
1.1 |
if (!$metainfo->{disconnectMethod}) { $metainfo->{disconnectMethod} = 'disconnect'; } |
142 |
|
|
# type? |
143 |
|
|
$invocant =~ s/Data::Storage::Handler:://; |
144 |
|
|
$metainfo->{type} = $invocant; |
145 |
|
|
|
146 |
|
|
# direct accessible (non-protected) properties ( was: my $self = { }; ) |
147 |
joko |
1.3 |
$self->{metainfo} = $metainfo; |
148 |
cvsjoko |
1.1 |
|
149 |
|
|
return $self; |
150 |
|
|
} |
151 |
|
|
|
152 |
|
|
|
153 |
joko |
1.10 |
# TODO: use NEXT.pm inside this mechanism (to avoid repetitions...) |
154 |
cvsjoko |
1.1 |
sub AUTOLOAD { |
155 |
|
|
|
156 |
|
|
# recursion problem to be avoided here!!! |
157 |
|
|
|
158 |
|
|
# - problem: we get recursion-hangs!!! => perl stops with ... |
159 |
|
|
# "Deep recursion on subroutine "Data::Storage::Handler::Abstract::AUTOLOAD" at [...]/libs/Data/Storage.pm line 38." |
160 |
|
|
|
161 |
|
|
# - when: if we log to ourselves as a storage-implementation (e.g. via Log::Dispatch::Tangram) |
162 |
|
|
# - why: debug-messages are on a very low level including every data-operation to "Data::Storage(::Handler::X)", |
163 |
|
|
# so e.g. a "$storage->insert" would trigger another "$storage->insert" itself |
164 |
|
|
# which leads to a infinite recursion loop (deep recursion) |
165 |
joko |
1.2 |
# - solution: locks! (by Hack or (maybe) via Perl "local"s) |
166 |
cvsjoko |
1.1 |
|
167 |
|
|
my $self = shift; |
168 |
|
|
|
169 |
|
|
our $AUTOLOAD; |
170 |
|
|
#return if $AUTOLOAD =~ m/::DESTROY$/; |
171 |
|
|
|
172 |
|
|
# find out methodname |
173 |
|
|
my $methodname = $AUTOLOAD; |
174 |
|
|
$methodname =~ s/^.*:://; |
175 |
joko |
1.7 |
|
176 |
|
|
#print "method: $methodname", "\n"; |
177 |
|
|
|
178 |
|
|
# TODO: document this! handler-private methods listed here will not be triggered (internal use) |
179 |
|
|
# in this case, "exists" is a method reserved for Tie::SecureHash, |
180 |
|
|
# which encapsulates the perl data structure (HASH) under this object |
181 |
|
|
# this is to prevent deep recursion's |
182 |
|
|
return if lc $methodname eq 'exists'; |
183 |
|
|
|
184 |
joko |
1.12 |
#print "$methodname - 1", "\n"; |
185 |
joko |
1.7 |
|
186 |
|
|
# TODO: enhance logging/debugging |
187 |
|
|
#if (!$self->exists('COREHANDLE')) { return; } |
188 |
cvsjoko |
1.1 |
|
189 |
|
|
# handle locking (hack) |
190 |
joko |
1.10 |
if ($self->can('exists') && $self->exists('lock_info') && $self->{lock_info}->{last_method} && $methodname eq $self->{lock_info}->{last_method}) { |
191 |
cvsjoko |
1.1 |
$self->{lock_info}->{log_lock} = 1; |
192 |
|
|
} else { |
193 |
|
|
$self->{lock_info}->{log_lock} = 0; |
194 |
|
|
} |
195 |
|
|
$self->{lock_info}->{last_method} = $methodname; |
196 |
|
|
|
197 |
joko |
1.12 |
#print "$methodname - 2", "\n"; |
198 |
joko |
1.7 |
|
199 |
|
|
#print Dumper($self); |
200 |
|
|
#exit; |
201 |
|
|
|
202 |
|
|
# get corehandle instance from underlying handler |
203 |
|
|
my $core = $self->getCOREHANDLE(); |
204 |
|
|
|
205 |
cvsjoko |
1.1 |
# test for COREHANDLE |
206 |
joko |
1.7 |
#if (!$self->{_COREHANDLE}) { |
207 |
|
|
#=pod |
208 |
|
|
#if (!$self->exists('_COREHANDLE')) { |
209 |
|
|
#if (!$self->{_COREHANDLE}) { |
210 |
|
|
if (!$core) { |
211 |
joko |
1.10 |
|
212 |
|
|
#print Dumper($self); |
213 |
|
|
#exit; |
214 |
|
|
|
215 |
|
|
my $handlertype = $self->{metainfo}->{type}; |
216 |
|
|
$handlertype ||= ''; |
217 |
|
|
|
218 |
|
|
my $err_msg_core = __PACKAGE__ . "[$handlertype]" . ": " . "COREHANDLE is undefined while trying to execute method \"$methodname\""; |
219 |
joko |
1.12 |
|
220 |
|
|
#print $err_msg_core, "\n"; |
221 |
|
|
|
222 |
|
|
#if ($self->exists('lock_info') && !$self->{lock_info}->{log_lock}) { |
223 |
joko |
1.7 |
$logger->error( $err_msg_core ); |
224 |
joko |
1.12 |
#} |
225 |
|
|
|
226 |
cvsjoko |
1.1 |
return; |
227 |
joko |
1.12 |
|
228 |
cvsjoko |
1.1 |
} |
229 |
joko |
1.7 |
#=cut |
230 |
|
|
|
231 |
|
|
#print "$methodname - 3", "\n"; |
232 |
cvsjoko |
1.1 |
|
233 |
|
|
# try to dispatch method-call to Storage::Handler::* |
234 |
|
|
#if ($self->can($methodname)) { |
235 |
|
|
#$logger->debug( __PACKAGE__ . "[$self->{metainfo}->{type}]" . "->" . $methodname . "(@_)" ); |
236 |
|
|
#my $res = $self->$methodname(@_); |
237 |
|
|
#if ($res) { return $res; } |
238 |
|
|
#} |
239 |
|
|
|
240 |
joko |
1.7 |
#print "$methodname - 4", "\n"; |
241 |
|
|
|
242 |
cvsjoko |
1.1 |
# try to dispatch method-call to COREHANDLE |
243 |
joko |
1.7 |
# was: |
244 |
|
|
#my $core = $self->{_COREHANDLE}; |
245 |
|
|
# is: |
246 |
|
|
#my $core = $self->getCOREHANDLE(); |
247 |
|
|
|
248 |
|
|
#print Dumper($core); |
249 |
|
|
#exit; |
250 |
|
|
|
251 |
|
|
# was: |
252 |
|
|
#if ($self->{_COREHANDLE}->can($methodname) || $self->{_COREHANDLE}->can("AUTOLOAD")) { |
253 |
|
|
# is: |
254 |
|
|
if ($core->can($methodname) || $core->can("AUTOLOAD")) { |
255 |
cvsjoko |
1.1 |
#$logger->debug( __PACKAGE__ . "->" . $methodname . " (AUTOLOAD)" ); |
256 |
|
|
#$lock_AUTOLOAD = 1 if ($methodname eq 'insert'); |
257 |
|
|
if (!$self->{lock_info}->{log_lock}) { |
258 |
|
|
#print "method: $methodname", "\n"; |
259 |
|
|
$logger->debug( __PACKAGE__ . "[$self->{metainfo}->{type}]" . "->" . $methodname . "(@_)" ); |
260 |
|
|
} else { |
261 |
|
|
# AUTOLOAD - sub is locked to prevent deep recursions if (e.g.) db-inserts cause log-actions to same db itself |
262 |
|
|
} |
263 |
|
|
#$lock_AUTOLOAD = 0; |
264 |
|
|
#$logger->log( level => 'debug', message => __PACKAGE__ . "->" . $methodname . " (AUTOLOAD)" ); |
265 |
joko |
1.3 |
|
266 |
joko |
1.7 |
#print "calling: $methodname", "\n"; |
267 |
|
|
|
268 |
joko |
1.10 |
# method calls making it until here will get dispatched to the proper handler |
269 |
joko |
1.7 |
return $core->$methodname(@_); |
270 |
joko |
1.6 |
|
271 |
|
|
} elsif ($self->can($methodname)) { |
272 |
joko |
1.10 |
# try to call specified method inside our or inherited module(s) scope(s) |
273 |
joko |
1.6 |
return $self->$methodname(@_); |
274 |
cvsjoko |
1.1 |
} |
275 |
|
|
|
276 |
|
|
} |
277 |
|
|
|
278 |
|
|
sub DESTROY { |
279 |
|
|
my $self = shift; |
280 |
joko |
1.7 |
#if ($self->{COREHANDLE}) { |
281 |
|
|
if ($self->exists('_COREHANDLE')) { |
282 |
cvsjoko |
1.1 |
$logger->debug( __PACKAGE__ . "[$self->{metainfo}->{type}]" . "->DESTROY" ); |
283 |
|
|
|
284 |
|
|
my $disconnectMethod = $self->{metainfo}->{disconnectMethod}; |
285 |
|
|
|
286 |
|
|
# call "disconnect" or alike on COREHANDLE |
287 |
|
|
# was: $self->{COREHANDLE}->disconnect(); |
288 |
joko |
1.7 |
$disconnectMethod && $self->{_COREHANDLE} && ( $self->{_COREHANDLE}->$disconnectMethod() ); |
289 |
cvsjoko |
1.1 |
|
290 |
joko |
1.7 |
undef $self->{_COREHANDLE}; |
291 |
cvsjoko |
1.1 |
} |
292 |
|
|
} |
293 |
|
|
|
294 |
joko |
1.7 |
sub _typeCheck2 { |
295 |
cvsjoko |
1.1 |
my $type = shift; |
296 |
|
|
print "type: $type"; |
297 |
|
|
eval("use Data::Storage::$type;"); |
298 |
|
|
} |
299 |
|
|
|
300 |
|
|
|
301 |
|
|
# ==================================================== |
302 |
|
|
# PUBLIC METHODS |
303 |
|
|
# ==================================================== |
304 |
|
|
|
305 |
joko |
1.3 |
sub existsChildNode { |
306 |
|
|
my $self = shift; |
307 |
|
|
my $nodename = shift; |
308 |
joko |
1.14 |
|
309 |
|
|
# TODO: don't use $self->{meta}->{childnodes} directly in here |
310 |
|
|
# get it returned from $self->getChildNodes()!!! |
311 |
|
|
|
312 |
|
|
$logger->debug( __PACKAGE__ . "->existsChildNode( nodename=$nodename )" ); |
313 |
joko |
1.3 |
$self->getChildNodes() unless $self->{meta}->{childnodes}; |
314 |
joko |
1.14 |
|
315 |
|
|
# quote this, it might contain meta characters which don't work in a regex |
316 |
|
|
$nodename = quotemeta($nodename); |
317 |
|
|
|
318 |
|
|
# trace |
319 |
|
|
#print Dumper($self->{meta}); |
320 |
|
|
#print "nodename: $nodename", "\n"; |
321 |
|
|
|
322 |
|
|
# FIXME: use "/i" only on win32-systems! |
323 |
|
|
my $result = grep(m/$nodename/i, @{$self->{meta}->{childnodes}}); |
324 |
|
|
|
325 |
joko |
1.3 |
return $result; |
326 |
|
|
} |
327 |
cvsjoko |
1.1 |
|
328 |
joko |
1.3 |
sub connect_tmp { |
329 |
cvsjoko |
1.1 |
|
330 |
|
|
# my $self = shift; |
331 |
|
|
# my $connectionString = shift; |
332 |
|
|
# # todo: patch connectionString to $args |
333 |
|
|
# _typeCheck($self->{args}{type}); |
334 |
|
|
|
335 |
|
|
} |
336 |
|
|
|
337 |
joko |
1.3 |
|
338 |
|
|
# ==================================================== |
339 |
|
|
# CONCRETE METHOD DUMMIES (croaking via "$logger" by calling "_abstract_function") |
340 |
|
|
# ==================================================== |
341 |
|
|
|
342 |
|
|
# TODO: |
343 |
|
|
# - abstract "abstract methods" to list/hash to be used in AUTOLOAD |
344 |
|
|
# e.g.: my @ABSTRACT_METHODS = (qw( connect sendCommand getChildNodes )); |
345 |
joko |
1.4 |
# use Class::XYZ (Construct) |
346 |
joko |
1.3 |
# - build them via anonymous subs |
347 |
|
|
# - introduce them via symbols |
348 |
|
|
|
349 |
joko |
1.7 |
sub getCOREHANDLE { |
350 |
|
|
my $self = shift; |
351 |
|
|
$self->_abstract_function('getCOREHANDLE'); |
352 |
|
|
} |
353 |
|
|
|
354 |
cvsjoko |
1.1 |
sub sendCommand { |
355 |
|
|
my $self = shift; |
356 |
|
|
$self->_abstract_function('sendCommand'); |
357 |
joko |
1.11 |
} |
358 |
|
|
|
359 |
|
|
sub createChildNode { |
360 |
|
|
my $self = shift; |
361 |
|
|
$self->_abstract_function('createChildNode'); |
362 |
joko |
1.7 |
} |
363 |
|
|
|
364 |
|
|
sub existsChildNode_tmp { |
365 |
|
|
my $self = shift; |
366 |
|
|
$self->_abstract_function('existsChildNode'); |
367 |
cvsjoko |
1.1 |
} |
368 |
|
|
|
369 |
|
|
sub getChildNodes { |
370 |
|
|
my $self = shift; |
371 |
|
|
$self->_abstract_function('getChildNodes'); |
372 |
|
|
} |
373 |
|
|
|
374 |
|
|
sub configureCOREHANDLE { |
375 |
|
|
my $self = shift; |
376 |
|
|
$self->_abstract_function('configureCOREHANDLE'); |
377 |
|
|
} |
378 |
|
|
|
379 |
joko |
1.3 |
sub getMetaInfo { |
380 |
|
|
my $self = shift; |
381 |
|
|
$self->_abstract_function('getMetaInfo'); |
382 |
|
|
return; |
383 |
|
|
} |
384 |
|
|
|
385 |
|
|
sub getListUnfiltered { |
386 |
|
|
my $self = shift; |
387 |
|
|
$self->_abstract_function('getListUnfiltered'); |
388 |
|
|
return; |
389 |
|
|
} |
390 |
|
|
|
391 |
|
|
sub getListFiltered { |
392 |
|
|
my $self = shift; |
393 |
|
|
$self->_abstract_function('getListFiltered'); |
394 |
|
|
return; |
395 |
|
|
} |
396 |
|
|
|
397 |
|
|
sub sendQuery { |
398 |
|
|
my $self = shift; |
399 |
|
|
$self->_abstract_function('sendQuery'); |
400 |
|
|
return; |
401 |
|
|
} |
402 |
|
|
|
403 |
|
|
sub connect { |
404 |
|
|
my $self = shift; |
405 |
|
|
$self->_abstract_function('connect'); |
406 |
|
|
return; |
407 |
|
|
} |
408 |
|
|
|
409 |
|
|
sub testIntegrity { |
410 |
|
|
my $self = shift; |
411 |
|
|
$self->_abstract_function('testIntegrity'); |
412 |
|
|
return; |
413 |
|
|
} |
414 |
|
|
|
415 |
|
|
sub quoteSql { |
416 |
|
|
my $self = shift; |
417 |
|
|
$self->_abstract_function('quoteSql'); |
418 |
joko |
1.4 |
return; |
419 |
|
|
} |
420 |
|
|
|
421 |
|
|
sub eraseAll { |
422 |
|
|
my $self = shift; |
423 |
|
|
$self->_abstract_function('eraseAll'); |
424 |
|
|
return; |
425 |
|
|
} |
426 |
|
|
|
427 |
|
|
sub createDb { |
428 |
|
|
my $self = shift; |
429 |
|
|
$self->_abstract_function('createDb'); |
430 |
joko |
1.9 |
return; |
431 |
|
|
} |
432 |
|
|
|
433 |
|
|
sub dropDb { |
434 |
|
|
my $self = shift; |
435 |
|
|
$self->_abstract_function('dropDb'); |
436 |
|
|
return; |
437 |
|
|
} |
438 |
|
|
|
439 |
|
|
sub rebuildDb { |
440 |
|
|
my $self = shift; |
441 |
|
|
$self->_abstract_function('rebuildDb'); |
442 |
joko |
1.13 |
return; |
443 |
|
|
} |
444 |
|
|
|
445 |
|
|
sub getDbName { |
446 |
|
|
my $self = shift; |
447 |
|
|
$self->_abstract_function('getDbName'); |
448 |
|
|
return; |
449 |
|
|
} |
450 |
|
|
|
451 |
|
|
sub testAvailability { |
452 |
|
|
my $self = shift; |
453 |
|
|
$self->_abstract_function('testAvailability'); |
454 |
|
|
return; |
455 |
|
|
} |
456 |
|
|
|
457 |
|
|
sub isConnected { |
458 |
|
|
my $self = shift; |
459 |
|
|
$self->_abstract_function('isConnected'); |
460 |
|
|
return; |
461 |
|
|
} |
462 |
|
|
|
463 |
|
|
sub testDsn { |
464 |
|
|
my $self = shift; |
465 |
|
|
$self->_abstract_function('testDsn'); |
466 |
joko |
1.3 |
return; |
467 |
|
|
} |
468 |
|
|
|
469 |
|
|
1; |