Package edu.cornell.mannlib.vitro.webapp.searchindex.indexing

Class SelectQueryUriFinder

java.lang.Object

edu.cornell.mannlib.vitro.webapp.searchindex.indexing.SelectQueryUriFinder

All Implemented Interfaces:

IndexingUriFinder, ContextModelsUser

public class SelectQueryUriFinder
extends Object
implements IndexingUriFinder, ContextModelsUser

Find URIs based on one or more select queries. If the statement qualifies, execute the queries and return the accumulated results. A statement qualifies if the predicate matches any of the restrictions, or if there are no restrictions. If a query contains a ?subject, ?predicate, or ?object variable, it will be bound to the URI of the subject, predicate, or object of the statement, respectively. If the subject or object has no URI and the query expects one, then the query will be ignored. (Predicates always have URIs.) All of the result fields of all result rows of all of the queries will be returned. A label may be supplied to the instance, for use in logging. If no label is supplied, one will be generated.

Constructor Summary

Constructors

Constructor	Description
SelectQueryUriFinder()

Method Summary

Modifier and Type	Method	Description
void	addPredicateRestriction(String predicateUri)
void	addQuery(String query)
void	endIndexing()	Indicates that the collection of statements being processed is complete.
List<String>	findAdditionalURIsToIndex(org.apache.jena.rdf.model.Statement stmt)	For the domain that is the responsibility of the given implementation, calculate the URIs that need to be updated in the search index.
void	setContextModels(ContextModelAccess models)
void	setLabel(String l)
void	startIndexing()	Indicates that a new collection of statements is about to be processed.
String	toString()
void	validate()

Methods inherited from class java.lang.Object

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

Constructor Detail

SelectQueryUriFinder

public SelectQueryUriFinder()

Method Detail

setContextModels

public void setContextModels(ContextModelAccess models)

Specified by:

setContextModels in interface ContextModelsUser

setLabel

public void setLabel(String l)

addQuery

public void addQuery(String query)

addPredicateRestriction

public void addPredicateRestriction(String predicateUri)

validate

public void validate()

toString

public String toString()

Overrides:

toString in class Object

startIndexing

public void startIndexing()

Description copied from interface: IndexingUriFinder

Indicates that a new collection of statements is about to be processed.

Specified by:

startIndexing in interface IndexingUriFinder

findAdditionalURIsToIndex

public List<String> findAdditionalURIsToIndex(org.apache.jena.rdf.model.Statement stmt)

Description copied from interface: IndexingUriFinder

For the domain that is the responsibility of the given implementation, calculate the URIs that need to be updated in the search index. The URIs in the list will be updated by the IndexBuilder, which will handle URIs of new individuals, URIs of individuals that have changes, and URIs of individuals that have been removed from the model.

Specified by:

findAdditionalURIsToIndex in interface IndexingUriFinder

Returns:

List of URIs. Never return null.

endIndexing

public void endIndexing()

Description copied from interface: IndexingUriFinder

Indicates that the collection of statements being processed is complete.

Specified by:

endIndexing in interface IndexingUriFinder