org.apache.clerezza.platform.cris

Class IndexService

java.lang.Object

org.apache.clerezza.rdf.cris.ResourceFinder

org.apache.clerezza.platform.cris.IndexService

@Service(value=IndexService.class)
public class IndexService
extends ResourceFinder

Service to index and find resources from the content graph.

Author:

tio

Constructor Summary

Constructors

Constructor and Description
IndexService()

Method Summary

Methods

Modifier and Type	Method and Description
protected void	activate(org.osgi.service.component.ComponentContext context)
void	addDefinitionVirtual(UriRef propertyType, List<VirtualProperty> predicates)
void	addDefintion(UriRef propertyType, List<UriRef> predicates)
protected void	deactivate(org.osgi.service.component.ComponentContext context)
void	deleteDefintion(UriRef propertyType)
List<NonLiteral>	findResources(List<? extends Condition> conditions) Find resources using conditions.
List<NonLiteral>	findResources(List<? extends Condition> conditions, FacetCollector... facetCollectors) Find resources using conditions and collect facets.
List<NonLiteral>	findResources(List<? extends Condition> conditions, SortSpecification sortSpecification, FacetCollector... facetCollectors) Find resources using conditions and collect facets and a sort order.
List<NonLiteral>	findResources(UriRef uriRef, String pattern) Find resource with given property whose value matches a pattern.
List<NonLiteral>	findResources(UriRef uriRef, String pattern, boolean escapePattern) Find resource with given property whose value matches a pattern.
List<NonLiteral>	findResources(UriRef uriRef, String pattern, boolean escapePattern, FacetCollector... facetCollectors) Find resource with given property whose value matches a pattern and collect facets.
List<NonLiteral>	findResources(UriRef uriRef, String pattern, boolean escapePattern, SortSpecification sortSpecification, FacetCollector... facetCollectors) Find resource with given property whose value matches a pattern and sort order and collect facets.
void	optimizeIndex() optimize the index
void	reCreateIndex() recreates the index

Methods inherited from class org.apache.clerezza.rdf.cris.ResourceFinder

findResources, findResources, findResources, findResources

Methods inherited from class java.lang.Object

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

Constructor Detail

IndexService

public IndexService()

Method Detail

activate

protected void activate(org.osgi.service.component.ComponentContext context)

deactivate

protected void deactivate(org.osgi.service.component.ComponentContext context)

findResources

public List<NonLiteral> findResources(List<? extends Condition> conditions,
                             SortSpecification sortSpecification,
                             FacetCollector... facetCollectors)

Description copied from class: ResourceFinder

Find resources using conditions and collect facets and a sort order.

Specified by:

findResources in class ResourceFinder

Parameters:

conditions - a list of conditions to construct a query from.

sortSpecification - specifies the sort order.

facetCollectors - facet collectors to apply to the query result.

Returns:

a list of resources that match the query.

findResources

public List<NonLiteral> findResources(List<? extends Condition> conditions,
                             FacetCollector... facetCollectors)

Description copied from class: ResourceFinder

Find resources using conditions and collect facets.

Overrides:

findResources in class ResourceFinder

Parameters:

conditions - a list of conditions to construct a query from.

facetCollectors - facet collectors to apply to the query result.

Returns:

a list of resources that match the query.

findResources

public List<NonLiteral> findResources(List<? extends Condition> conditions)

Description copied from class: ResourceFinder

Find resources using conditions.

Overrides:

findResources in class ResourceFinder

Parameters:

conditions - a list of conditions to construct a query from.

Returns:

a list of resources that match the query.

findResources

public List<NonLiteral> findResources(UriRef uriRef,
                             String pattern)

Description copied from class: ResourceFinder

Find resource with given property whose value matches a pattern.

Overrides:

findResources in class ResourceFinder

Parameters:

uriRef - The property to which to apply the pattern.

pattern - The pattern from which to construct a query.

Returns:

a list of resources that match the query.

findResources

public List<NonLiteral> findResources(UriRef uriRef,
                             String pattern,
                             boolean escapePattern)

Description copied from class: ResourceFinder

Find resource with given property whose value matches a pattern.

Overrides:

findResources in class ResourceFinder

Parameters:

uriRef - The property to which to apply the pattern.

pattern - The pattern from which to construct a query.

escapePattern - whether to escape reserved characters in the pattern

Returns:

list of resources that match the query.

findResources

public List<NonLiteral> findResources(UriRef uriRef,
                             String pattern,
                             boolean escapePattern,
                             FacetCollector... facetCollectors)

Description copied from class: ResourceFinder

Find resource with given property whose value matches a pattern and collect facets.

Overrides:

findResources in class ResourceFinder

Parameters:

uriRef - The property to which to apply the pattern.

pattern - The pattern from which to construct a query.

escapePattern - whether to escape reserved characters in the pattern

facetCollectors - facet collectors to apply to the query result.

Returns:

a list of resources that match the query.

findResources

public List<NonLiteral> findResources(UriRef uriRef,
                             String pattern,
                             boolean escapePattern,
                             SortSpecification sortSpecification,
                             FacetCollector... facetCollectors)

Description copied from class: ResourceFinder

Find resource with given property whose value matches a pattern and sort order and collect facets.

Overrides:

findResources in class ResourceFinder

Parameters:

uriRef - The property to which to apply the pattern.

pattern - The pattern from which to construct a query.

escapePattern - whether to escape reserved characters in the pattern

sortSpecification - specifies the sort order.

facetCollectors - facet collectors to apply to the query result.

Returns:

a list of resources that match the query.

reCreateIndex

public void reCreateIndex()

Description copied from class: ResourceFinder

recreates the index

Specified by:

reCreateIndex in class ResourceFinder

optimizeIndex

public void optimizeIndex()

Description copied from class: ResourceFinder

optimize the index

Specified by:

optimizeIndex in class ResourceFinder

addDefintion

public void addDefintion(UriRef propertyType,
                List<UriRef> predicates)

addDefinitionVirtual

public void addDefinitionVirtual(UriRef propertyType,
                        List<VirtualProperty> predicates)

deleteDefintion

public void deleteDefintion(UriRef propertyType)