METHOD AND APPARATUS FOR PROCESSING A QUERY ON A PLURALITY OF OBJECT INSTANCES

• Main Authors: Koncilia, Christian, Täubig, Hanjo, Wang, Peide, Haft, Michael
• Format: Patent
• Language: English; French; German
• Published: 27.03.2019

A computer-implemented method of processing a query on a plurality of instances of an object of an object-oriented environment, wherein said object has a root object and a plurality of member fields, among which a plurality themselves are objects thereby being sub-objects of said root object, wherein said root object and each sub-object correspond to an entity represented by and stored in form of a table, wherein said tables are tables in accordance with a relational model of data, and wherein each of said tables corresponding to said root object or to one of said sub-objects has been sorted in accordance with the primary key of the table corresponding to said root object, said method comprising: Analyzing said query to identify those objects among said root object and said sub-objects, which are necessary to execute the query, for each of the primary key values of the table corresponding to said root object: i) generating an instance of said object by populating the member fields of those objects among said root object and said sub-objects, which have been identified in said analyzing step, with the data identified by the respective primary key in their corresponding tables; ii) executing the query on the generated object instance; ii) add the query result to a result accumulator storage.