PCEDM general query system based on meta-data driving
Jiang Wei · 2010
As the model itself has advanced and object-oriented technology,making the model itself becomes more complex in the query.Through researching of optimizing PCEDM model layer,we built meta-model by means of metadata-driven technology.Optimizing query process,we designed and realized a system which met the user's customization and query.The system can focus on different fields with different combinations of data to build query automatically,which can make the query of data universal and convenient.The practical application has achived satisfactory results.