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1 | package SQL::Translator::XMI::Parser; |
2 | |
3 | =pod |
4 | |
5 | =head1 NAME |
6 | |
7 | SQL::Translator::XMI::Parser- Perl class for blah blah blah |
8 | |
9 | =cut |
10 | |
11 | use strict; |
12 | use 5.006_001; |
13 | our $VERSION = "0.01"; |
14 | |
15 | use XML::XPath; |
16 | use XML::XPath::XMLParser; |
17 | use Storable qw/dclone/; |
18 | |
19 | # Spec |
20 | #============================================================================= |
21 | # |
22 | # Describes the 2 xmi formats 1.2 and 1.0. Neither is complete! |
23 | # |
24 | # NB The names of the data keys MUST be the same for both specs so the |
25 | # data structures returned are the same. |
26 | # |
27 | # There is currently no way to set the data key name for attrib_data, it just |
28 | # uses the attribute name from the XMI. This isn't a problem at the moment as |
29 | # xmi1.0 names all these things with tags so we don't need the attrib data! |
30 | # Also use of names seems to be consistant between the versions. |
31 | # |
32 | |
33 | my $SPECS = {}; |
34 | |
35 | my $spec12 = $SPECS->{"1.2"} = {}; |
36 | |
37 | $spec12->{class} = { |
38 | name => "class", |
39 | plural => "classes", |
40 | default_path => '//UML:Class[@xmi.id]', |
41 | attrib_data => |
42 | [qw/name visibility isSpecification isRoot isLeaf isAbstract isActive/], |
43 | path_data => [ |
44 | { |
45 | name => "stereotype", |
46 | path => 'xmiDeref(UML:ModelElement.stereotype/UML:Stereotype)/@name', |
47 | default => "", |
48 | }, |
49 | ], |
50 | kids => [ |
51 | { |
52 | name => "attributes", |
53 | # name in data returned |
54 | path => "UML:Classifier.feature/UML:Attribute", |
55 | class => "attribute", |
56 | # Points to class in spec. get_attributes() called to parse it and |
57 | # adds filter_attributes to the args for get_classes(). |
58 | multiplicity => "*", |
59 | # How many we get back. Use '1' for 1 and '*' for lots. |
60 | # TODO If not set then decide depening on the return? |
61 | }, |
b2a00f50 |
62 | { |
f42065cb |
63 | name => "operations", |
64 | path => "UML:Classifier.feature/UML:Operation", |
65 | class => "operation", |
66 | multiplicity => "*", |
67 | }, |
b2a00f50 |
68 | { |
f42065cb |
69 | name => "taggedValues", |
70 | path => 'UML:ModelElement.taggedValue/UML:TaggedValue', |
b2a00f50 |
71 | class => "taggedValue", |
f42065cb |
72 | multiplicity => "*", |
b2a00f50 |
73 | map => "name", |
74 | # Add a _map_taggedValues to the data. Its a hash of the name data |
75 | # which refs the normal list of kids |
76 | }, |
f42065cb |
77 | ], |
78 | }; |
79 | |
80 | $spec12->{taggedValue} = { |
81 | name => "taggedValue", |
82 | plural => "taggedValues", |
83 | default_path => '//UML:TaggedValue[@xmi.id]', |
84 | attrib_data => [qw/isSpecification/], |
85 | path_data => [ |
86 | { |
87 | name => "dataValue", |
88 | path => 'UML:TaggedValue.dataValue/text()', |
89 | }, |
90 | { |
91 | name => "name", |
92 | path => 'xmiDeref(UML:TaggedValue.type/UML:TagDefinition)/@name', |
93 | }, |
94 | ], |
95 | }; |
96 | |
97 | $spec12->{attribute} = { |
98 | name => "attribute", |
99 | plural => "attributes", |
100 | default_path => '//UML:Classifier.feature/UML:Attribute[@xmi.id]', |
101 | attrib_data => |
102 | [qw/name visibility isSpecification ownerScope/], |
103 | path_data => [ |
104 | { |
105 | name => "stereotype", |
106 | path => 'xmiDeref(UML:ModelElement.stereotype/UML:Stereotype)/@name', |
107 | default => "", |
108 | }, |
109 | { |
110 | name => "datatype", |
111 | path => 'xmiDeref(UML:StructuralFeature.type/UML:DataType)/@name', |
112 | }, |
113 | { |
114 | name => "initialValue", |
115 | path => 'UML:Attribute.initialValue/UML:Expression/@body', |
116 | }, |
117 | ], |
118 | kids => [ |
119 | { |
120 | name => "taggedValues", |
121 | path => 'UML:ModelElement.taggedValue/UML:TaggedValue', |
122 | class => "taggedValue", |
123 | multiplicity => "*", |
b2a00f50 |
124 | map => "name", |
f42065cb |
125 | }, |
126 | ], |
127 | }; |
128 | |
129 | $spec12->{operation} = { |
130 | name => "operation", |
131 | plural => "operations", |
132 | default_path => '//UML:Classifier.feature/UML:Operation[@xmi.id]', |
133 | attrib_data => |
134 | [qw/name visibility isSpecification ownerScope isQuery |
135 | concurrency isRoot isLeaf isAbstract/], |
136 | path_data => [ |
137 | { |
138 | name => "stereotype", |
139 | path => 'xmiDeref(UML:ModelElement.stereotype/UML:Stereotype)/@name', |
140 | default => "", |
141 | }, |
142 | ], |
143 | kids => [ |
144 | { |
145 | name => "parameters", |
146 | path => "UML:BehavioralFeature.parameter/UML:Parameter", |
147 | class => "parameter", |
148 | multiplicity => "*", |
149 | }, |
150 | { |
151 | name => "taggedValues", |
152 | path => 'UML:ModelElement.taggedValue/UML:TaggedValue', |
153 | class => "taggedValue", |
154 | multiplicity => "*", |
b2a00f50 |
155 | map => "name", |
f42065cb |
156 | }, |
157 | ], |
158 | }; |
159 | |
160 | $spec12->{parameter} = { |
161 | name => "parameter", |
162 | plural => "parameters", |
b2a00f50 |
163 | default_path => '//UML:Parameter[@xmi.id]', |
f42065cb |
164 | attrib_data => [qw/name isSpecification kind/], |
165 | path_data => [ |
166 | { |
167 | name => "stereotype", |
168 | path => 'xmiDeref(UML:ModelElement.stereotype/UML:Stereotype)/@name', |
169 | default => "", |
170 | }, |
171 | { |
172 | name => "datatype", |
173 | path => 'xmiDeref(UML:StructuralFeature.type/UML:DataType)/@name', |
174 | }, |
175 | ], |
176 | }; |
177 | |
178 | #----------------------------------------------------------------------------- |
179 | |
180 | my $spec10 = $SPECS->{"1.0"} = {}; |
181 | |
182 | $spec10->{class} = { |
183 | name => "class", |
184 | plural => "classes", |
185 | default_path => '//Foundation.Core.Class[@xmi.id]', |
186 | attrib_data => [], |
187 | path_data => [ |
188 | { |
189 | name => "name", |
190 | path => 'Foundation.Core.ModelElement.name/text()', |
191 | }, |
192 | { |
193 | name => "visibility", |
194 | path => 'Foundation.Core.ModelElement.visibility/@xmi.value', |
195 | }, |
196 | { |
197 | name => "isSpecification", |
198 | path => 'Foundation.Core.ModelElement.isSpecification/@xmi.value', |
199 | }, |
200 | { |
201 | name => "isRoot", |
202 | path => 'Foundation.Core.GeneralizableElement.isRoot/@xmi.value', |
203 | }, |
204 | { |
205 | name => "isLeaf", |
206 | path => 'Foundation.Core.GeneralizableElement.isLeaf/@xmi.value', |
207 | }, |
208 | { |
209 | name => "isAbstract", |
210 | path => 'Foundation.Core.GeneralizableElement.isAbstract/@xmi.value', |
211 | }, |
212 | { |
213 | name => "isActive", |
214 | path => 'Foundation.Core.Class.isActive/@xmi.value', |
215 | }, |
216 | ], |
217 | kids => [ |
218 | { |
219 | name => "attributes", |
220 | path => |
221 | 'Foundation.Core.Classifier.feature/Foundation.Core.Attribute', |
222 | class => "attribute", |
223 | multiplicity => "*", |
224 | }, |
225 | # { |
226 | # name => "operations", |
227 | # path => "UML:Classifier.feature/UML:Operation", |
228 | # class => "operation", |
229 | # multiplicity => "*", |
230 | # }, |
231 | ], |
232 | }; |
233 | |
234 | $spec10->{attribute} = { |
235 | name => "attribute", |
236 | plural => "attributes", |
237 | default_path => '//Foundation.Core.Attribute[@xmi.id]', |
238 | path_data => [ |
239 | { |
240 | name => "name", |
241 | path => 'Foundation.Core.ModelElement.name/text()', |
242 | }, |
243 | { |
244 | name => "visibility", |
245 | path => 'Foundation.Core.ModelElement.visibility/@xmi.value', |
246 | }, |
247 | { |
248 | name => "isSpecification", |
249 | path => 'Foundation.Core.ModelElement.isSpecification/@xmi.value', |
250 | }, |
251 | { |
252 | name => "ownerScope", |
253 | path => 'Foundation.Core.Feature.ownerScope/@xmi.value', |
254 | }, |
255 | { |
256 | name => "initialValue", |
257 | path => 'Foundation.Core.Attribute.initialValue/Foundation.Data_Types.Expression/Foundation.Data_Types.Expression.body/text()', |
258 | }, |
259 | #{ |
260 | # name => "datatype", |
261 | # path => 'xmiDeref(Foundation.Core.StructuralFeature.type/Foundation.Core.Classifier)/Foundation.Core.DataType/Foundation.Core.ModelElement.name/text()', |
262 | #}, |
263 | ], |
264 | }; |
265 | |
266 | #============================================================================= |
267 | |
268 | # |
269 | # How this works! |
270 | #================= |
271 | # |
272 | # The parser supports xmi1.0 and xmi1.2 based on the specs above. At new() time |
273 | # the version is read from the XMI tag and picks out a spec e.g. |
274 | # $SPECS->{"1.2"} and feeds it to mk_gets() which returns a hash ref of subs |
275 | # (think strategy pattern), one for each entry in the specs hash. This is held |
276 | # in $self->{xmi_get_}. |
277 | # |
278 | # When the class is use'd it sets dispatch methods with |
279 | # mk_get_dispatch() that return the call using the corresponding sub in |
280 | # $self->{xmi_get_}. e.g. |
281 | # |
282 | # sub get_classes { $_[0]->{xmi_get_}{classes}->(@_); } |
283 | # sub get_attributes { $_[0]->{xmi_get_}{attributes}->(@_); } |
284 | # sub get_classes { $_[0]->{xmi_get_}{classes}->(@_); } |
285 | # |
286 | # The names for the data keys in the specs must match up so that we get the |
287 | # same data structure for each version. |
288 | # |
289 | |
290 | # Class setup |
291 | foreach ( values %$SPECS ) { init_specs($_) }; |
292 | mk_get_dispatch(); |
293 | |
294 | # Build lookups etc. Its important that each spec item becomes self contained |
b4b9f867 |
295 | # so we can build good closures, therefore we do all the lookups 1st. |
f42065cb |
296 | sub init_specs { |
297 | my $specs = shift; |
298 | |
299 | foreach my $spec ( values %$specs ) { |
b4b9f867 |
300 | # Look up for kids get method |
301 | foreach ( @{$spec->{kids}} ) { |
f42065cb |
302 | $_->{get_method} = "get_".$specs->{$_->{class}}{plural}; |
303 | } |
b4b9f867 |
304 | |
305 | # Add xmi.id ti all specs. Everything we want at the moment (in both |
306 | # versions) has an id. The tags that don't seem to be used for |
307 | # structure. |
308 | my $attrib_data = $spec->{attrib_data} ||= []; |
309 | push @$attrib_data, "xmi.id"; |
f42065cb |
310 | } |
311 | |
312 | } |
313 | |
314 | # Generate get_* subs to dispach the calls to the subs held in $me->{xmi_get_} |
315 | sub mk_get_dispatch { |
316 | foreach ( values %{$SPECS->{"1.2"}} ) { |
317 | my $name = $_->{plural}; |
318 | no strict "refs"; |
319 | |
320 | # get_ on parser |
321 | *{"get_$name"} = sub { |
322 | #my $me = shift; |
323 | #$me->{xmi_get_}{$name}->($me,@_); |
324 | $_[0]->{xmi_get_}{$name}->(@_); |
325 | }; |
326 | } |
327 | } |
328 | |
329 | sub new { |
330 | my $proto = shift; |
331 | my $class = ref($proto) || $proto; |
332 | my %args = @_; |
333 | my $me = {}; |
334 | |
335 | # Create the XML::XPath object |
336 | # TODO Docs recommend we only use 1 XPath object per application |
337 | my $xp; |
338 | foreach (qw/filename xml ioref/) { |
339 | if ($args{$_}) { |
340 | $xp = XML::XPath->new( $_ => $args{$_}); |
341 | $xp->set_namespace("UML", "org.omg.xmi.namespace.UML"); |
342 | last; |
343 | } |
344 | } |
345 | $me = { xml_xpath => $xp }; |
346 | |
347 | # Work out the version of XMI we have and generate the get subs to parse it |
b4b9f867 |
348 | my $xmiv = $args{xmi_version} |
349 | || "".$xp->findvalue('/XMI/@xmi.version') |
350 | || die "Can't find XMI version"; |
f42065cb |
351 | $me->{xmi_get_} = mk_gets($SPECS->{$xmiv}); |
352 | |
353 | return bless $me, $class; |
354 | } |
355 | |
356 | |
357 | # Returns hashref of get subs from set of specs e.g. $SPECS->{"1.2"} |
358 | # |
359 | # TODO |
360 | # * Add a memoize so we don't keep regenerating the subs for every use. |
361 | sub mk_gets { |
362 | my $specs = shift; |
363 | my $gets; |
364 | foreach ( values %$specs ) { |
365 | # Clone from specs and sort out the lookups into it so we get a |
366 | # self contained spec to use as a proper closure. |
367 | my $spec = dclone($_); |
368 | |
369 | # Add the sub |
370 | $gets->{$spec->{plural}} = mk_get($spec); |
371 | } |
372 | return $gets; |
373 | } |
374 | |
375 | # |
376 | # mk_get |
377 | # |
378 | # Generates and returns a get_ sub for the spec given. e.g. give it |
379 | # $SPECS->{"1.2"}->{classes} to get the code for xmi 1.2 get_classes. So, if |
380 | # you want to change how the get methods work do it here! |
381 | # |
382 | # The get methods made have the args described in the docs and 2 private args |
383 | # used internally, to call other get methods from paths in the spec. |
384 | # |
385 | # NB: DO NOT use publicly as you will break the version independance. e.g. When |
386 | # using _xpath you need to know which version of XMI to use. This is handled by |
387 | # the use of different paths in the specs. |
b2a00f50 |
388 | # |
f42065cb |
389 | # _context => The context node to use, if not given starts from root. |
b2a00f50 |
390 | # |
f42065cb |
391 | # _xpath => The xpath to use for finding stuff. |
b2a00f50 |
392 | # |
f42065cb |
393 | use Data::Dumper; |
394 | sub mk_get { |
395 | my $spec = shift; |
b2a00f50 |
396 | |
f42065cb |
397 | # get_* closure using $spec |
398 | return sub { |
399 | my ($me, %args) = @_; |
400 | my $xp = delete $args{_context} || $me->{xml_xpath}; |
401 | my $things; |
402 | |
403 | my $xpath = $args{_xpath} ||= $spec->{default_path}; |
404 | #warn "Searching for $spec->{plural} using:$xpath\n"; |
405 | |
406 | my @nodes = $xp->findnodes($xpath); |
407 | return unless @nodes; |
408 | |
409 | for my $node (@nodes) { |
410 | my $thing = {}; |
411 | # my $thing = { xpNode => $node }; |
b2a00f50 |
412 | |
f42065cb |
413 | # Get the Tag attributes |
414 | foreach ( @{$spec->{attrib_data}} ) { |
415 | $thing->{$_} = $node->getAttribute($_); |
416 | } |
b2a00f50 |
417 | |
f42065cb |
418 | # Add the path data |
419 | foreach ( @{$spec->{path_data}} ) { |
420 | #warn "Searching for $spec->{plural} - $_->{name} using:$_->{path}\n"; |
421 | my @nodes = $node->findnodes($_->{path}); |
422 | $thing->{$_->{name}} = @nodes ? $nodes[0]->getData |
423 | : (exists $_->{default} ? $_->{default} : undef); |
424 | } |
b2a00f50 |
425 | |
426 | # Run any filters set |
427 | # |
f42065cb |
428 | # Should we do this after the kids as we may want to test them? |
429 | # e.g. test for number of attribs |
430 | if ( my $filter = $args{filter} ) { |
431 | local $_ = $thing; |
432 | next unless $filter->($thing); |
433 | } |
b2a00f50 |
434 | |
f42065cb |
435 | # Kids |
436 | # |
437 | foreach ( @{$spec->{kids}} ) { |
b2a00f50 |
438 | my $data; |
f42065cb |
439 | my $meth = $_->{get_method}; |
b2a00f50 |
440 | my $path = $_->{path}; |
441 | $data = $me->$meth( _context => $node, _xpath => $path, |
f42065cb |
442 | filter => $args{"filter_$_->{name}"} ); |
b2a00f50 |
443 | |
f42065cb |
444 | if ( $_->{multiplicity} eq "1" ) { |
445 | $thing->{$_->{name}} = shift @$data; |
446 | } |
447 | else { |
b2a00f50 |
448 | my $kids = $thing->{$_->{name}} = $data || []; |
449 | if ( my $key = $_->{"map"} ) { |
450 | $thing->{"_map_$_->{name}"} = _mk_map($kids,$key); |
451 | } |
f42065cb |
452 | } |
453 | } |
454 | |
455 | push @$things, $thing; |
456 | } |
457 | return wantarray ? @$things : $things; |
458 | } # /closure sub |
459 | |
460 | } # /mk_get |
461 | |
b2a00f50 |
462 | sub _mk_map { |
463 | my ($kids,$key) = @_; |
464 | my $map = {}; |
465 | foreach (@$kids) { |
466 | $map->{$_->{$key}} = $_ if exists $_->{$key}; |
467 | } |
468 | return $map; |
469 | } |
470 | |
f42065cb |
471 | 1; #=========================================================================== |
472 | |
473 | |
474 | package XML::XPath::Function; |
475 | |
476 | # |
477 | # May need to look at doing deref on all paths just to be on the safe side! |
478 | # |
479 | # Will also want some caching as these calls are expensive as the whole doc |
480 | # is used but the same ref will likley be requested lots of times. |
481 | # |
482 | sub xmiDeref { |
483 | my $self = shift; |
484 | my ($node, @params) = @_; |
485 | if (@params > 1) { |
486 | die "xmiDeref() function takes one or no parameters\n"; |
487 | } |
488 | elsif (@params) { |
489 | my $nodeset = shift(@params); |
490 | return $nodeset unless $nodeset->size; |
491 | $node = $nodeset->get_node(1); |
492 | } |
493 | die "xmiDeref() needs an Element node." |
494 | unless $node->isa("XML::XPath::Node::Element"); |
495 | |
496 | my $id = $node->getAttribute("xmi.idref") or return $node; |
497 | return $node->getRootNode->find('//*[@xmi.id="'.$id.'"]'); |
498 | } |
499 | |
500 | |
501 | # compile please |
502 | 1; |
503 | |
504 | __END__ |
505 | |
506 | =head1 SYNOPSIS |
507 | |
508 | use SQL::Translator::XMI::Parser; |
509 | my $xmip = SQL::Translator::XMI::Parser->new( xml => $xml ); |
510 | my $classes = $xmip->get_classes(); |
511 | |
512 | =head1 DESCRIPTION |
513 | |
514 | Parses XMI files (XML version of UML diagrams) to perl data structures and |
515 | provides hooks to filter the data down to what you want. |
516 | |
517 | =head2 new |
518 | |
b4b9f867 |
519 | Pass in name/value arg of either C<filename>, C<xml> or C<ioref> for the XMI |
520 | data you want to parse. |
521 | |
522 | The version of XMI to use either 1.0 or 1.2 is worked out from the file. You |
523 | can also use a C<xmi_version> arg to set it explicitley. |
f42065cb |
524 | |
525 | =head2 get_* methods |
526 | |
527 | Doc below is for classes method, all the other calls follow this form. |
528 | |
529 | =head2 get_classes( ARGS ) |
530 | |
531 | ARGS - Name/Value list of args. |
532 | |
533 | filter => A sub to filter the node to see if we want it. Has the nodes data, |
534 | before kids are added, referenced to $_. Should return true if you |
535 | want it, false otherwise. |
536 | |
537 | e.g. To find only classes with a "Foo" stereotype. |
538 | |
539 | filter => sub { return $_->{stereotype} eq "Foo"; } |
540 | |
541 | filter_attributes => A filter sub to pass onto get_attributes. |
542 | |
543 | filter_operations => A filter sub to pass onto get_operations. |
544 | |
545 | Returns a perl data structure including all the kids. e.g. |
546 | |
547 | { |
548 | 'name' => 'Foo', |
549 | 'visibility' => 'public', |
550 | 'isActive' => 'false', |
551 | 'isAbstract' => 'false', |
552 | 'isSpecification' => 'false', |
553 | 'stereotype' => 'Table', |
554 | 'isRoot' => 'false', |
555 | 'isLeaf' => 'false', |
556 | 'attributes' => [ |
557 | { |
558 | 'name' => 'fooid', |
559 | 'stereotype' => 'PK', |
560 | 'datatype' => 'int' |
561 | 'ownerScope' => 'instance', |
562 | 'visibility' => 'public', |
563 | 'initialValue' => undef, |
564 | 'isSpecification' => 'false', |
565 | }, |
566 | { |
567 | 'name' => 'name', |
568 | 'stereotype' => '', |
569 | 'datatype' => 'varchar' |
570 | 'ownerScope' => 'instance', |
571 | 'visibility' => 'public', |
572 | 'initialValue' => '', |
573 | 'isSpecification' => 'false', |
574 | }, |
575 | ] |
576 | 'operations' => [ |
577 | { |
578 | 'name' => 'magic', |
579 | 'isQuery' => 'false', |
580 | 'ownerScope' => 'instance', |
581 | 'visibility' => 'public', |
582 | 'isSpecification' => 'false', |
583 | 'stereotype' => '', |
584 | 'isAbstract' => 'false', |
585 | 'isLeaf' => 'false', |
586 | 'isRoot' => 'false', |
587 | 'concurrency' => 'sequential' |
588 | 'parameters' => [ |
589 | { |
590 | 'kind' => 'inout', |
591 | 'isSpecification' => 'false', |
592 | 'stereotype' => '', |
593 | 'name' => 'arg1', |
594 | 'datatype' => undef |
595 | }, |
596 | { |
597 | 'kind' => 'inout', |
598 | 'isSpecification' => 'false', |
599 | 'stereotype' => '', |
600 | 'name' => 'arg2', |
601 | 'datatype' => undef |
602 | }, |
603 | { |
604 | 'kind' => 'return', |
605 | 'isSpecification' => 'false', |
606 | 'stereotype' => '', |
607 | 'name' => 'return', |
608 | 'datatype' => undef |
609 | } |
610 | ], |
611 | } |
612 | ], |
613 | } |
614 | |
615 | =head1 XMI XPath Functions |
616 | |
617 | The Parser adds the following extra XPath functions for use in the SPECS. |
618 | |
619 | =head2 xmiDeref |
620 | |
621 | Deals with xmi.id/xmi.idref pairs of attributes. You give it an |
622 | xPath e.g 'UML:ModelElement.stereotype/UML:stereotype' if the the |
623 | tag it points at has an xmi.idref it looks up the tag with that |
624 | xmi.id and returns it. |
625 | |
626 | If it doesn't have an xmi.id, the path is returned as normal. |
627 | |
628 | e.g. given |
629 | |
630 | <UML:ModelElement.stereotype> |
631 | <UML:Stereotype xmi.idref = 'stTable'/> |
632 | </UML:ModelElement.stereotype> |
633 | ... |
634 | <UML:Stereotype xmi.id='stTable' name='Table' visibility='public' |
635 | isAbstract='false' isSpecification='false' isRoot='false' isLeaf='false'> |
636 | <UML:Stereotype.baseClass>Class</UML:Stereotype.baseClass> |
637 | </UML:Stereotype> |
638 | |
639 | Using xmideref(//UML:ModelElement.stereotype/UML:stereotype) would return the |
640 | <UML:Stereotype xmi.id = '3b4b1e:f762a35f6b:-7fb6' ...> tag. |
641 | |
642 | Using xmideref(//UML:ModelElement.stereotype/UML:stereotype)/@name would give |
643 | "Table". |
644 | |
645 | =head1 SEE ALSO |
646 | |
647 | perl(1). |
648 | |
649 | =head1 TODO |
650 | |
651 | =head1 BUGS |
652 | |
653 | =head1 VERSION HISTORY |
654 | |
655 | =head1 AUTHOR |
656 | |
657 | grommit <mark.addison@itn.co.uk> |
658 | |
659 | =head1 LICENSE |
660 | |
661 | This package is free software and is provided "as is" without express or |
662 | implied warranty. It may be used, redistributed and/or modified under the |
663 | terms of either; |
664 | |
665 | a) the Perl Artistic License. |
666 | |
667 | See F<http://www.perl.com/perl/misc/Artistic.html> |
668 | |
669 | b) the terms of the GNU General Public License as published by the Free Software |
670 | Foundation; either version 1, or (at your option) any later version. |
671 | |
672 | =cut |