Package org.griphyn.vdl.dbschema

Provides the database schema encapsulation.

See:
Description

Interface Summary

Advanced	This common schema interface defines advanced search interfaces for VDC.
Annotation	This common schema interface defines the schemas in which the abstraction layers access the metadata associated with VDC elements.
Catalog	This interface groups different but related catalog subinterfaces.
PTC	This interface defines a common base for all database schemas that supports the handling of the provenance tracking catalog.
VDC	This common schema interface defines the schemas in which the abstraction layers access the VDC.
WF	This common schema interface defines the schemas in which the abstraction layers access the WF database.
XDC	This common schema interface defines advanced search interfaces for VDC.

Class Summary

AnnotationSchema	This class provides basic functionalities to interact with the backend database, such as insertion, deletion, and search.
ChunkSchema	This class provides basic functionalities to interact with the backend database, such as insertion, deletion, and search of entities in the VDC.
DatabaseSchema	This common schema interface defines the schemas in which the abstraction layers access any given database.
InMemorySchema	This is a class that falls back not on a real database backend, but rather on an existing Definitions data structure in main memory.
InvocationSchema	This class provides basic functionalities to interact with the backend database for invocation records, such as insertion, deletion, and search.
MyCallbackHandler	This class adds a given Definition from the parser's callback into the fresh in-memory storage.
NXDInvSchema	This class provides basic functionalities to interact with the backend database for invocation records, such as insertion, deletion, and search.
NXDSchema	This class provides basic functionalities to interact with the backend database, such as insertion, deletion, and search of entities in the VDC.
SingleFileSchema	This is a class that falls back not on a real database backend, but rather on an existing Definitions data structure that are read from file during construction (or rather, during open), and pushed back into file at destruction (or rather, during close).
WorkflowSchema	This class provides basic functionalities to interact with the backend database for workflow records.

Package org.griphyn.vdl.dbschema Description

Provides the database schema encapsulation.

Package Specification

The classes in this package provide a database independent abstraction of database access for a variety of catalogs.

To provide an alternative implementation for an existing catalog, you need to:

1. extend the DatabaseSchema class.
2. implement the appropriate Catalog child interface.

To provide an addition catalog implementation, you need to extend the Catalog interface. In the next step, you will need to provide an implementation as before.

Currently, several concrete catalogs are implemented in Chimera:

• The Provenance Tracking Catalog PTC
• The Virtual Data Catalog VDC
• An extension of the VDC Advanced
• Joining attributes to Virtual Data objects Annotation

Related Documentation

For overviews, tutorials, examples, guides, and tool documentation, please see:

• GVDS
• Chimera
• GriPhyN

See Also:

org.griphyn.vdl.dbdriver, org.griphyn.vdl.annotation