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From Patrick Diviacco <patrick.divia...@gmail.com>
Subject Re: [digester] how can I print children tags instead of only tag content ?
Date Sun, 15 May 2011 06:58:42 GMT
what does IIUC mean ?

Yeah. I mean, more exactly, I just need to know if the element has at least
a child:

bool = hasChild(myPattern)

thanks

On 15 May 2011 02:09, Simone Tripodi <simonetripodi@apache.org> wrote:

> IIUC, no matters which kind of children your node has, you're
> interested only on the first child, right?
>
> http://people.apache.org/~simonetripodi/
> http://www.99soft.org/
>
>
>
> On Sat, May 14, 2011 at 10:51 PM, Patrick Diviacco
> <patrick.diviacco@gmail.com> wrote:
> > ps. the children names are completely different, there is no way to use a
> > regex to discriminate between them.
> >
> >
> >
> > On 14 May 2011 22:50, Patrick Diviacco <patrick.diviacco@gmail.com>
> wrote:
> >
> >> hi Simone,
> >>
> >> ok, it was just matter of adding one line :)
> >>
> >> By the way I still have an issue in the case of multiple children and I
> >> don't know how to solve it. If I have a document containing:
> >>
> >> <parent>
> >> <child1></child1>
> >> <child2></child2>
> >> </parent>
> >>
> >> I don't want to  trigger the method twice, but just once... in other
> terms
> >> I want to trigger the method only once per document and only if the
> <parent>
> >> tag has at least 1 child.
> >>
> >> I copy my code again:
> >>
> >> Digester digester = new Digester();
> >> digester.setRules( new RegexRules( new SimpleRegexMatcher() ) );
> >>
> >> digester.addCallMethod("collection/doc/categ/*",  "myMethod", 0);
> >>
> >> thanks
> >> Patrick
> >>
> >>
> >>
> >>
> >> On 14 May 2011 21:54, Simone Tripodi <simonetripodi@apache.org> wrote:
> >>
> >>> Hi Patrick,
> >>> I thought it was more intuitive, sounds we have to update de doc.
> >>> Anyway, to reply to your questions:
> >>>
> >>> 1) just create the Digester instance, set the RegexRules and start
> >>> binding your rules:
> >>>
> >>> Digester digester = new Digester();
> >>> digester.setRules( new RegexRules( new SimpleRegexMatcher() ) );
> >>> digester.addCallMethod( "collection/doc/categ/*",  "myMethod", 0 );
> >>>
> >>> 2) yes, as reported in the javadoc I pointed: "* matches any sequence
> >>> of none, one or more characters" like in the bash syntax; if you want
> >>> to apply kind of filters, bind the rules with restrictive patterns
> >>> (prefixes/postfixes); ie. given the rule:
> >>>
> >>> digester.addCallMethod( "collection/doc/categ/patt*",  "myMethod", 0 );
> >>>
> >>> collection/doc/categ/patt -> matches
> >>> collection/doc/categ/pattern -> matches
> >>> collection/doc/categ/patteRn -> matches
> >>> collection/doc/categ/pattern -> matches
> >>> collection/doc/categ/paBtern -> does not match
> >>>
> >>> HTH, have a nice weekend,
> >>> Simo
> >>>
> >>> http://people.apache.org/~simonetripodi/
> >>> http://www.99soft.org/
> >>>
> >>>
> >>>
> >>> On Sat, May 14, 2011 at 8:58 PM, Patrick Diviacco
> >>> <patrick.diviacco@gmail.com> wrote:
> >>> > Thanks,
> >>> >
> >>> > 1) Is there any tutorial explaining how to use it ?
> >>> >
> >>> > 2) In my case, if I have more than one child, is the pattern detected
> >>> > multiple times ?
> >>> >
> >>> > help is very appreciated!
> >>> >
> >>> >
> >>> >
> >>> >
> >>> > On 14 May 2011 01:36, Simone Tripodi <simonetripodi@apache.org>
> wrote:
> >>> >
> >>> >> Hi Patrick,
> >>> >> follow the Konstantin's suggestion, that's the way to achieve it.
> Have
> >>> >> a read also to
> >>> >>
> >>>
> http://commons.apache.org/digester/apidocs/index.html?org/apache/commons/digester/SimpleRegexMatcher.html
> >>> >>
> >>> >> HTH,
> >>> >> Simo
> >>> >>
> >>> >> http://people.apache.org/~simonetripodi/
> >>> >> http://www.99soft.org/
> >>> >>
> >>> >>
> >>> >>
> >>> >> On Fri, May 13, 2011 at 8:28 PM, Konstantin Kolinko
> >>> >> <knst.kolinko@gmail.com> wrote:
> >>> >> > 2011/5/13 Patrick Diviacco <patrick.diviacco@gmail.com>:
> >>> >> >> mhm, sorry.. just to be more clear.
> >>> >> >>
> >>> >> >> Is there a way in Commons Digester to trigger a method
only if a
> xml
> >>> >> element
> >>> >> >> has a child ?
> >>> >> >>
> >>> >> >> i.e.
> >>> >> >> digester.addCallMethod("collection/doc/categ/*",  "myMethod",
0);
> >>> >> >>
> >>> >> >> This doesn't work.
> >>> >> >
> >>> >> > The "*" is allowed in the prefix only, as documented in
> >>> >> >
> >>> >> >
> >>> >>
> >>>
> http://commons.apache.org/digester/commons-digester-2.1/docs/api/org/apache/commons/digester/RulesBase.html
> >>> >> >
> >>> >> > You may try to use a different rules matcher. See "RegexMatchers"
> >>> chapter
> >>> >> here:
> >>> >> > http://commons.apache.org/digester/commons-digester-2.1/core.html
> >>> >> >
> >>> >> >
> >>> >> >> But it is actually what I need. If element <categ>
has at
> >>> >> >> least a child, then trigger myMethod
> >>> >> >
> >>> >> > Best regards,
> >>> >> > Konstantin Kolinko
> >>> >> >
> >>> >> >
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> >>> >> >
> >>> >> >
> >>> >>
> >>> >>
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> >>> >>
> >>> >>
> >>> >
> >>>
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> >>>
> >>>
> >>
> >
>
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