[jdom-interest] how to compare queries based on predicates

[awais hamid]

hello friends Thanks for ur previus replies . i am facing another problem . 
if u all give it a reading and give me some sujjestion
i have an xml file like this
<queries>
<query id=11>/person/student[name="ggg"]</query>
<query id=12>/person/student[name="ggg"]</query>
<query id=13>/person/student[phone="324234"]</query>
<queries>
Now when user gives any query i want that his query should be compared with 
existing queries in the file above based on predicates

how can i separate/identify  different predicates from different queries .

do I have to convert every query into a JDOM tree ???

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