APPARATUS AND METHOD FOR STORING/RESTORING SGML/XML ENTITY FOR REUSING INFORMATION IN DOCUMENT MANAGING SYSTEM

摘要

PURPOSE: An apparatus and method for storing/restoring SGML/XML entity is provided to prevent a waste of an auxiliary memory and to store SGML/XML document more rapidly and to restore entities stored in a database in various forms into the original entities in accordance with the form of each entity by sharing an entity declaration being referred to a plurality of documents. CONSTITUTION: A user interface(100) comprises a document input interface(110) requesting SGML/XML DTD and an input of a document to a SGML/XML document managing system(200), and a document output interface(120) requests a restore of a document by transmitting a storing portion identifier to the SGML/XML document managing system(200) and presents data of the document to a user. The elements of the SGML/XML document managing system(200) are described as follows. A SGML/XML parser(210) provides a verification of an error and a parsing result to a main memory as a tree form by performing a parsing with respect to the SGML/XML DTD and the document. A SGML/XML document storing device(220) receives the parsing result and stores an entity referring portion included in the document. An entity storing device(230) stores an entity declaration of the SGML/XML DTD. A SGML/XML entity managing device(240) receives the storing portion identifier from a client and returns data of an entity object corresponded to the storing portion identifier. A database system interface(250) is provided to interwork to a database system(300). The database system(300) charges a role of the lower storing system. A SGML/XML database(400) stores the document and the entity.