Package org.dspace.content.crosswalk

Provides an API and implementations of metadata crosswalks, which are directional mappings from one schema to another, performed in the context of Item ingestion or dissemination.

See:
Description

Interface Summary

DisseminationCrosswalk	Dissemination Crosswalk plugin -- translate DSpace native metadata into an external XML format.
IngestionCrosswalk	Ingestion Crosswalk plugin -- translate an external metadata format into DSpace native metadata.
StreamDisseminationCrosswalk	A class implementing this interface crosswalk metadata directly from a DSpace Object to an output stream, in a specific format.
StreamIngestionCrosswalk	A class implementing this interface can crosswalk metadata directly from a stream (assumed to be in a specific format) to the object.

Class Summary

METSDisseminationCrosswalk	METS dissemination crosswalk
MODSDisseminationCrosswalk	Configurable MODS Crosswalk
NullIngestionCrosswalk	"Null" ingestion crosswalk
PREMISCrosswalk	PREMIS Crosswalk
QDCCrosswalk	Configurable QDC Crosswalk
SimpleDCDisseminationCrosswalk	Disseminator for Simple Dublin Core metadata in XML format.
XHTMLHeadDisseminationCrosswalk	Crosswalk for creating appropriate <meta> elements to appear in the item display page for a particular item, for improving automated processing of the page (e.g.
XSLTCrosswalk	Configurable XSLT-driven Crosswalk
XSLTDisseminationCrosswalk	Configurable XSLT-driven dissemination Crosswalk
XSLTIngestionCrosswalk	Configurable XSLT-driven ingestion Crosswalk

Exception Summary

CrosswalkException	Superclass for more-specific crosswalk exceptions.
CrosswalkInternalException	Something went wrong inside the crosswalk, not necessarily caused by the input or state (although it could be an incorrectly handled pathological case).
CrosswalkObjectNotSupported	Something went wrong inside the crosswalk, not necessarily caused by the input or state (although it could be an incorrectly handled pathological case).
MetadataValidationException	This indicates a problem with the input metadata (for submission) or item state (dissemination).

Package org.dspace.content.crosswalk Description

Provides an API and implementations of metadata crosswalks, which are directional mappings from one schema to another, performed in the context of Item ingestion or dissemination. Most crosswalks are driven by a mapping in a file, which reside in config/crosswalks.

Crosswalk Interfaces

The principle interfaces are for ingest and dissemination contexts, i.e. the IngestionCrosswalk interface consists of the methods:

public void ingest(Context context, DSpaceObject dso, List metadata)
public void ingest(Context context, DSpaceObject dso, Element root)

The DisseminationCrosswalk interface has methods:

public Namespace[] getNamespaces()
public String getSchemaLocation()
public boolean canDisseminate(DSpaceObject dso)
public List disseminateList(DSpaceObject dso)
public Element disseminateElement(DSpaceObject dso)

Crosswalk Implementations

Crosswalks exist for many formats, includings DC, QDC, METs, MODs, Premis, and a general implementation employing an XSLT stylesheet.