APPARATUS AND METHOD FOR QUERY PROCESSING FROM STREAM DATA

摘要

PURPOSE: An apparatus and method for processing a query for stream data is provided to minimize the waste of resources by optimizing the twig pattern query process about the streaming XML data. CONSTITUTION: An XML(eXtensible Markup Language) data parsing unit(320) parses a streaming XML data and detects a start or a finish event about an object which is included in the streaming XML data. A query generating unit(340) creates a twig pattern query based on the inputted search condition by a user. A query search part(330) searches data corresponding to the twig pattern query from the streaming XML data by comparing the detected object and the twig pattern query.