DEVICE AND METHOD FOR CONVERTING EBXML FILTER QUERY USING G-FQL

摘要

PURPOSE: A device and a method for converting an ebXML(e-business eXtensible Markup Language) filter query using a G-FQL(Generalized Filter Query Language) are provided to convert the filter query offered from an ebXML registry into an SQL(Structured Query Language) by using the G-FQL defined in the XML sentences. CONSTITUTION: A G-FQL converter converts the ebXML filter query defined by a user into the G-FQL, which is a graph model based query language defined in the XML sentences(10). An XML-object converter converts the G-FQL of the XML sentences into a program object controllable to the user(20). A query graph generator generates a query graph having the same meaning as the G-FQL from the object converted G-FQL(30). An SQL generator generates the SQL by optimizing the query to the query graph(40). A query executer executes the query by using the optimized SQL(50). An object-XML converter converts the object searched by the query executer into the XML again(60).