fedora.server.resourceIndex
Class MethodAwareTripleGenerator

java.lang.Object
  fedora.server.resourceIndex.BaseTripleGenerator
      fedora.server.resourceIndex.MethodAwareTripleGenerator

All Implemented Interfaces:

Constants, TripleGenerator

public class MethodAwareTripleGenerator
extends BaseTripleGenerator

Generates RDF triples for Fedora objects with the help of a MethodInfoProvider. This implementation produces a superset of the triples generated by BaseTripleGenerator. Specifically, it includes the following triples for each method the object exposes: For all methods:

• object usesBMech bMech
• object disseminates method
• method dependsOn datastream (for each input datastream)
• method lastModifiedDate (latest of dependent datastreams, or disseminator's)
• method state (disseminator's)
• method mimeType (possibly multiple, based on bMech)
• method isVolatile (true if any dependent datastreams are E or R type)
• method disseminationType disTypeURI (for each permutation)

Author:

cwilper@cs.cornell.edu

Nested Class Summary

Nested classes/interfaces inherited from interface fedora.common.Constants

Constants.FedoraHome

Field Summary

Fields inherited from interface fedora.common.Constants

ACTION, BDEF, BMECH, DATASTREAM, DC, DISSEMINATOR, ENVIRONMENT, FEDORA, FEDORA_HOME, FEDORA_SYSTEM_DEF_PID, FEDORA_SYSTEM_DEF_URI, HTTP_REQUEST, MODEL, OBJECT, RDF, RECOVERY, RELS_EXT, RESOURCE, SUBJECT, TUCANA, VIEW, XSD

Constructor Summary

MethodAwareTripleGenerator(MethodInfoProvider provider)
Construct an instance that will use the given provider.

Method Summary

java.util.Set<org.jrdf.graph.Triple>	getTriplesForBDef(BDefReader reader) Get the triples for the given Fedora behavior definition object.
java.util.Set<org.jrdf.graph.Triple>	getTriplesForBMech(BMechReader reader) Get the triples for the given Fedora behavior mechanism object.
java.util.Set<org.jrdf.graph.Triple>	getTriplesForDataObject(DOReader reader) Get the triples for the given Fedora data object.

Methods inherited from class fedora.server.resourceIndex.BaseTripleGenerator

add, add, add, add, createResource, getStateResource

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

MethodAwareTripleGenerator

public MethodAwareTripleGenerator(MethodInfoProvider provider)

Construct an instance that will use the given provider.

Parameters:

provider - the provider to use for behavior mechanism info.

Method Detail

getTriplesForBDef

public java.util.Set<org.jrdf.graph.Triple> getTriplesForBDef(BDefReader reader)
                                                       throws ResourceIndexException

Get the triples for the given Fedora behavior definition object.

Specified by:

getTriplesForBDef in interface TripleGenerator

Overrides:

getTriplesForBDef in class BaseTripleGenerator

Parameters:

reader - the behavior definition object.

Returns:

the set of triples.

Throws:

ResourceIndexException

getTriplesForBMech

public java.util.Set<org.jrdf.graph.Triple> getTriplesForBMech(BMechReader reader)
                                                        throws ResourceIndexException

Get the triples for the given Fedora behavior mechanism object.

Specified by:

getTriplesForBMech in interface TripleGenerator

Overrides:

getTriplesForBMech in class BaseTripleGenerator

Parameters:

reader - the behavior mechanism object.

Returns:

the set of triples.

Throws:

ResourceIndexException

getTriplesForDataObject

public java.util.Set<org.jrdf.graph.Triple> getTriplesForDataObject(DOReader reader)
                                                             throws ResourceIndexException

Get the triples for the given Fedora data object.

Specified by:

getTriplesForDataObject in interface TripleGenerator

Overrides:

getTriplesForDataObject in class BaseTripleGenerator

Parameters:

reader - the data object.

Returns:

the set of triples.

Throws:

ResourceIndexException