Radoslaw Adamus

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Stack-Based Query Language (SBQL) is a model query and programming language for a wide family of object-oriented database models. SBQL is the result of investigations into a uniform theoretical and conceptual basis for object-oriented query languages integrated with programming capabilities and abstractions, including database abstractions: updatable views,(More)
The paper presents a solution of the problem of wrapping relational databases to an object-oriented business model in the data grid architecture. The main problem with this kind of wrappers is how to utilize the native SQL query optimizer, which in majority of RDBMS is transparent for the users. In our solution we use the stack-based approach to query(More)
The paper addresses the problem of integrating data based on a XML-like semistructured model with a data grid architecture based on an object-oriented model. This work is continuation of the previous works on object-to-relational wrappers and covers a generic integration procedure for utilizing a native Lore query mechanism for retrieving data from XML data(More)
Native functional-style querying extensions for programming languages (e.g., LINQ or Java 8 streams) are widely considered as declarative. However, their very limited degree of optimisation when dealing with local collection processing contradicts this statement. We show that developers constructing complex LINQ queries or combining queries expose(More)
The paper describes a dynamic integration mechanism for a virtual repository that transparently integrates distributed, heterogeneous and redundant resources. The repository is based on combination of a P2P network, object-oriented databases, a query language SBQL and virtual updateable views defined and used in SBQL. It is currently implemented as a(More)