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4.3. VDB Content and Structure

In Teiid Designer, the VDB file names use a .vdb file extension. VDBs are structurally just ZIP archive files containing 3 folders:
  • META-INF - contains vdb.xml definition file.
  • runtime-inf - contains a binary INDEX file for each model included in your VDB.
  • project folder - contains of the models you will be adding in the VDB Editor (that is, *.xmi and *.xsd files)
When deployed, the metadata is consumed by JBoss Data Virtualization in order to create the necessary runtime metadata for your model definitions.
The vdb.xml file contains:
  • VDB name, version, properties
  • contained model information (name, translator name, connection info)
  • translator info
  • data role definitions for the referenced models
  • import VDB references
Fortunately, Teiid Designer simplifies the management of your VDBs by providing a dedicated VDB Editor which maintains a consistent, valid vdb.xml file for you and assists in synchronizing your workspace models with any related models in your VDB. (See Section E.8.1, “VDB Editor”)
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