Lightweight extension of core data services

A non-transitory computer-readable storage medium coupled to one or more processors and having instructions stored thereon which, when executed by the one or more processors, cause the one or more processors to perform operations for time- and resource-efficient execution of data model extensions to provide runtime data objects, the operations comprising:

• receiving, by a parser, a view source file and an extension source file, the view source file defining a view on data stored in a database, the extension source file defining an extension to the view;
• parsing, by the parser, the view source file to provide a view abstract syntax tree (AST) and the extension source file to provide an extension AST, the extension AST comprising at least one node that is absent from the view AST;
• providing, by the parser, a merged AST by merging the view AST and the extension AST, the merged AST comprising the at least one node that is absent from the view AST;
• generating a mixed runtime data object using the merged AST;
• and
• providing the mixed runtime data object for consumption by at least one runtime component.

A system, comprising:

• a processor;
• and
• a computer-readable storage device coupled to the processor and having instructions stored thereon which, when executed by the computing device, cause the processor to perform operations for time- and resource-efficient execution of data model extensions to provide runtime data objects, the operations comprising:
• receiving, by a parser, a view source file and an extension source file, the view source file defining a view on data stored in a database, the extension source file defining an extension to the view;
• parsing, by the parser, the view source file to provide a view abstract syntax tree (AST) and the extension source file to provide an extension AST, the extension AST comprising at least one node that is absent from the view AST;
• providing, by the parser, a merged AST by merging the view AST and the extension AST, the merged AST comprising the at least one node that is absent from the view AST;
• generating a mixed runtime data object using the merged AST;
• and
• providing the mixed runtime data object for consumption by at least one runtime component.