B.16. Runtime Metadata

JBoss Data Virtualization uses a library of metadata, known as runtime metadata for each virtual database (VDB) that is deployed. The runtime metadata is a subset of the metadata defined by the models contributing to your VDB. While building your VDB in the Designer, you can define what called an Extension Model, that defines any number of arbitrary properties on a model and its objects. At runtime, using the runtime metadata interface, you can use properties that were defined at design time to define execution behavior.

Translator gets access to the RuntimeMetadata interface at the time of Excecution creation. Translators can access runtime metadata by using the interfaces defined in org.teiid.metadata package. This package defines API representing a Schema, Table, Columns and Procedures, and ways to navigate these objects.