Problem with RunQueries.java example!!

> The method iterate() which is used to convert the XML result to its Java > representation is retuning [null]. > > I tried this code with the default query and also with 2-3 more XML files. > All are giving same, [null] output..!! > > > > > > > > > > Have a nice day :) > > > > Regards > > Anand Chiney > > > > > _______________________________________________ > BaseX-Talk mailing list > BaseX-Talk at mailman.uni-konstanz.de > https://mailman.uni-konstanz.de/mailman/listinfo/basex-talk >

On Sat, Jul 7, 2012 at 1:02 PM, Sandeep Yohans <sandeepy.air at gmail.com> wrote: > Hello Christian, > > We are extracting names from a very long list of names. The item.toJava() > method call in iterate(query) is returning null. > example output: > > [li: null] > > Rest of the methods are printing output fine. > > > -- > Thanks and Regards > > Sandeep Yohans > Software Developer > Systems - AIR Infotech > Nagpur - India > www.airinfotech.in > Mobile: +91-997-086-5520 >

> Dear Christian > > Please find attached 2 files, MyRunQueries.java and input.xml > > The .java file is an edited version of RunQueries.java version and the > > I hope this would be sufficient for you to test. > > > > Regards > Anand chiney > > -----Original Message----- > From: Christian Grün [mailto:christian.gruen at gmail.com] > Sent: Saturday, July 07, 2012 4:34 PM > To: Sandeep Yohans > Cc: Anand Chiney; basex-talk at mailman.uni-konstanz.de > Subject: Re: Problem with RunQueries.java example!! > > One again I'm sorry… Please send us a (small !) example that we can > try by ourselves. > > Thank you in advance, > Christian > ___________________________ > > On Sat, Jul 7, 2012 at 1:02 PM, Sandeep Yohans <sandeepy.air at gmail.com> > wrote: >> Hello Christian, >> >> We are extracting names from a very long list of names. The item.toJava() >> method call in iterate(query) is returning null. >> example output: >> >> [li: null] >> >> Rest of the methods are printing output fine. >> >> >> -- >> Thanks and Regards >> >> Sandeep Yohans >> Software Developer >> Systems - AIR Infotech >> Nagpur - India >> www.airinfotech.in >> Mobile: +91-997-086-5520 >>

On Sat, Jul 7, 2012 at 1:26 PM, Christian Grün <christian.gruen at gmail.com> wrote: > Your query will yield the expected results if you remove the explicit > cq.execute(); call. > > In the latest snapshot [1], an exception will be returned if the > result has already been requested. > > Hope this helps, > Christian > > [1] http://files.basex.org/releases/latest/ > ___________________________ > >> Dear Christian >> >> Please find attached 2 files, MyRunQueries.java and input.xml >> >> The .java file is an edited version of RunQueries.java version and the >> >> I hope this would be sufficient for you to test. >> >> >> >> Regards >> Anand chiney >> >> -----Original Message----- >> From: Christian Grün [mailto:christian.gruen at gmail.com] >> Sent: Saturday, July 07, 2012 4:34 PM >> To: Sandeep Yohans >> Cc: Anand Chiney; basex-talk at mailman.uni-konstanz.de >> Subject: Re: Problem with RunQueries.java example!! >> >> One again I'm sorry… Please send us a (small !) example that we can >> try by ourselves. >> >> Thank you in advance, >> Christian >> ___________________________ >> >> On Sat, Jul 7, 2012 at 1:02 PM, Sandeep Yohans <sandeepy.air at gmail.com> >> wrote: >>> Hello Christian, >>> >>> We are extracting names from a very long list of names. The item.toJava() >>> method call in iterate(query) is returning null. >>> example output: >>> >>> [li: null] >>> >>> Rest of the methods are printing output fine. >>> >>> >>> -- >>> Thanks and Regards >>> >>> Sandeep Yohans >>> Software Developer >>> Systems - AIR Infotech >>> Nagpur - India >>> www.airinfotech.in >>> Mobile: +91-997-086-5520 >>>

> Thanks for the reply. The serialize() did work. But what I was expecting > Is pure textual output and I am getting XML output. The output which I am > getting is -

> > ----------------------------------------------------------- > * Convert each result to its Java representation: > Iterator > <li>Exercise 1</li> > <li>Exercise 2</li> > ----------------------------------------------------------- > > But I am expecting this is - > > Exercise 1 > Exercise 2 > > Actually I want to populate a JComboBox which is a part of my front-end. > So I thought that this piece of code, where it is said "Java > representation", would gimme the output as I required. > > Can you help me a little more..? > Which method will gimme the plain output, without the XML Tags...? So that > I can populate a JComboBox... !! > > > Regards, > Anand Chiney > > > -----Original Message----- > From: Christian Grün [mailto:christian.gruen at gmail.com] > Sent: Saturday, July 07, 2012 5:02 PM > To: Anand Chiney (AIR); BaseX > Subject: Re: Problem with RunQueries.java example!! > > Here's a second feedback (sorry for being distracted): Your query does > return standard Java DOM elements, the toString() method of which > returns "[li: null]". As you are probably interested in the string > representation of the elements, you'll need to replace "toJava()" with > "serialize()": > > System.out.println(item.serialize()); > > Hope this helps, > Christian > ___________________________ > > On Sat, Jul 7, 2012 at 1:26 PM, Christian Grün > <christian.gruen at gmail.com> wrote: >> Your query will yield the expected results if you remove the explicit >> cq.execute(); call. >> >> In the latest snapshot [1], an exception will be returned if the >> result has already been requested. >> >> Hope this helps, >> Christian >> >> [1] http://files.basex.org/releases/latest/ >> ___________________________ >> >>> Dear Christian >>> >>> Please find attached 2 files, MyRunQueries.java and input.xml >>> >>> The .java file is an edited version of RunQueries.java version and the >>> >>> I hope this would be sufficient for you to test. >>> >>> >>> >>> Regards >>> Anand chiney >>> >>> -----Original Message----- >>> From: Christian Grün [mailto:christian.gruen at gmail.com] >>> Sent: Saturday, July 07, 2012 4:34 PM >>> To: Sandeep Yohans >>> Cc: Anand Chiney; basex-talk at mailman.uni-konstanz.de >>> Subject: Re: Problem with RunQueries.java example!! >>> >>> One again I'm sorry… Please send us a (small !) example that we can >>> try by ourselves. >>> >>> Thank you in advance, >>> Christian >>> ___________________________ >>> >>> On Sat, Jul 7, 2012 at 1:02 PM, Sandeep Yohans <sandeepy.air at gmail.com> >>> wrote: >>>> Hello Christian, >>>> >>>> We are extracting names from a very long list of names. The > item.toJava() >>>> method call in iterate(query) is returning null. >>>> example output: >>>> >>>> [li: null] >>>> >>>> Rest of the methods are printing output fine. >>>> >>>> >>>> -- >>>> Thanks and Regards >>>> >>>> Sandeep Yohans >>>> Software Developer >>>> Systems - AIR Infotech >>>> Nagpur - India >>>> www.airinfotech.in >>>> Mobile: +91-997-086-5520 >>>> >

-----Original Message----- From: Christian Grün [mailto:christian.gruen at gmail.com] Sent: Saturday, July 07, 2012 5:42 PM To: Anand Chiney (AIR); BaseX Subject: Re: Problem with RunQueries.java example!! Dear Anand, > Thanks for the reply. The serialize() did work. But what I was expecting > Is pure textual output and I am getting XML output. The output which I am > getting is - I strongly recommend you to spend some more time to get into XPath and XQuery, as those issues can all be realized fairly easily with the languages themselves. Some straightforward tutorials are e.g. found at [1,2]. Here are some examples (among many others) how you could rewrite your query to get the desired results: for $x in doc('input.xml')//li return $x/text() doc('input.xml')//li/text() doc('input.xml')//li/string() doc('input.xml')//li/data() You can also compose the whole combobox within XQuery. Your query could then look like <select>{ for $x in doc('input.xml')//li return <option>{ $x/text() }</option> }</select> or element select { doc('input.xml')//li ! element option { text() } } Hope this helps, Christian [1] http://www.w3schools.com/xpath [2] http://www.w3schools.com/xquery > > ----------------------------------------------------------- > * Convert each result to its Java representation: > Iterator > <li>Exercise 1</li> > <li>Exercise 2</li> > ----------------------------------------------------------- > > But I am expecting this is - > > Exercise 1 > Exercise 2 > > Actually I want to populate a JComboBox which is a part of my front-end. > So I thought that this piece of code, where it is said "Java > representation", would gimme the output as I required. > > Can you help me a little more..? > Which method will gimme the plain output, without the XML Tags...? So that > I can populate a JComboBox... !! > > > Regards, > Anand Chiney > > > -----Original Message----- > From: Christian Grün [mailto:christian.gruen at gmail.com] > Sent: Saturday, July 07, 2012 5:02 PM > To: Anand Chiney (AIR); BaseX > Subject: Re: Problem with RunQueries.java example!! > > Here's a second feedback (sorry for being distracted): Your query does > return standard Java DOM elements, the toString() method of which > returns "[li: null]". As you are probably interested in the string > representation of the elements, you'll need to replace "toJava()" with > "serialize()": > > System.out.println(item.serialize()); > > Hope this helps, > Christian > ___________________________ > > On Sat, Jul 7, 2012 at 1:26 PM, Christian Grün > <christian.gruen at gmail.com> wrote: >> Your query will yield the expected results if you remove the explicit >> cq.execute(); call. >> >> In the latest snapshot [1], an exception will be returned if the >> result has already been requested. >> >> Hope this helps, >> Christian >> >> [1] http://files.basex.org/releases/latest/ >> ___________________________ >> >>> Dear Christian >>> >>> Please find attached 2 files, MyRunQueries.java and input.xml >>> >>> The .java file is an edited version of RunQueries.java version and the >>> >>> I hope this would be sufficient for you to test. >>> >>> >>> >>> Regards >>> Anand chiney >>> >>> -----Original Message----- >>> From: Christian Grün [mailto:christian.gruen at gmail.com] >>> Sent: Saturday, July 07, 2012 4:34 PM >>> To: Sandeep Yohans >>> Cc: Anand Chiney; basex-talk at mailman.uni-konstanz.de >>> Subject: Re: Problem with RunQueries.java example!! >>> >>> One again I'm sorry Please send us a (small !) example that we can >>> try by ourselves. >>> >>> Thank you in advance, >>> Christian >>> ___________________________ >>> >>> On Sat, Jul 7, 2012 at 1:02 PM, Sandeep Yohans <sandeepy.air at gmail.com> >>> wrote: >>>> Hello Christian, >>>> >>>> We are extracting names from a very long list of names. The > item.toJava() >>>> method call in iterate(query) is returning null. >>>> example output: >>>> >>>> [li: null] >>>> >>>> Rest of the methods are printing output fine. >>>> >>>> >>>> -- >>>> Thanks and Regards >>>> >>>> Sandeep Yohans >>>> Software Developer >>>> Systems - AIR Infotech >>>> Nagpur - India >>>> www.airinfotech.in >>>> Mobile: +91-997-086-5520 >>>> >

> for $x in doc('input.xml')//li return $x/text()

> ------------------------Output with DB---------------------- > Example 1Example 2Example 3