org.infinispan.query.impl
Class CacheQueryImpl

java.lang.Object
  org.infinispan.query.impl.CacheQueryImpl

All Implemented Interfaces:

Iterable<Object>, CacheQuery

Direct Known Subclasses:

ClusteredCacheQueryImpl

public class CacheQueryImpl
extends Object
implements CacheQuery

Implementation class of the CacheQuery interface.

Author:

Navin Surtani, Sanne Grinovero (C) 2011 Red Hat Inc., Marko Luksa

Field Summary

protected AdvancedCache<?,?>	cache
protected org.hibernate.search.query.engine.spi.HSQuery	hSearchQuery
protected KeyTransformationHandler	keyTransformationHandler

Constructor Summary

CacheQueryImpl(org.apache.lucene.search.Query luceneQuery, org.hibernate.search.spi.SearchFactoryIntegrator searchFactory, AdvancedCache<?,?> cache, KeyTransformationHandler keyTransformationHandler, Class<?>... classes)

Method Summary

CacheQuery	disableFullTextFilter(String name) Disable a given filter by its name.
org.hibernate.search.FullTextFilter	enableFullTextFilter(String name) Enable a given filter by its name.
org.apache.lucene.search.Explanation	explain(int documentId) Return the Lucene Explanation object describing the score computation for the matching object/document in the current query
CacheQuery	filter(org.apache.lucene.search.Filter filter) Takes in a lucene filter and sets it to the filter field in the class.
CacheQuery	firstResult(int firstResult) Sets the the result of the given integer value to the first result.
org.hibernate.search.query.engine.spi.FacetManager	getFacetManager()
int	getResultSize() Gets the integer number of results.
QueryIterator	iterator() Returns the results of a search as a QueryIterator.
QueryIterator	iterator(int fetchSize) Returns the results of a search as a QueryIterator with a given integer parameter - the fetchSize.
QueryIterator	lazyIterator() Calls the CacheQuery.lazyIterator(int fetchSize) method but passes in a default 1 as a parameter.
QueryIterator	lazyIterator(int fetchSize) Lazily loads the results from the Query as a QueryIterator with a given integer parameter - the fetchSize.
List<Object>	list() Returns the results of a search as a list.
CacheQuery	maxResults(int maxResults) Sets the maximum number of results to the number passed in as a parameter.
CacheQuery	projection(String... fields) Defines the Lucene field names projected and returned in a query result Each field is converted back to it's object representation, an Object[] being returned for each "row" A projectable field must be stored in the Lucene index and use a org.hibernate.search.bridge.TwoWayFieldBridge Unless notified in their JavaDoc, all built-in bridges are two-way.
CacheQuery	sort(org.apache.lucene.search.Sort sort) Allows lucene to sort the results.

Methods inherited from class java.lang.Object

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

Field Detail

cache

protected final AdvancedCache<?,?> cache

keyTransformationHandler

protected final KeyTransformationHandler keyTransformationHandler

hSearchQuery

protected org.hibernate.search.query.engine.spi.HSQuery hSearchQuery

Constructor Detail

CacheQueryImpl

public CacheQueryImpl(org.apache.lucene.search.Query luceneQuery,
                      org.hibernate.search.spi.SearchFactoryIntegrator searchFactory,
                      AdvancedCache<?,?> cache,
                      KeyTransformationHandler keyTransformationHandler,
                      Class<?>... classes)

Method Detail

filter

public CacheQuery filter(org.apache.lucene.search.Filter filter)

Takes in a lucene filter and sets it to the filter field in the class.

Specified by:

filter in interface CacheQuery

Parameters:

filter - - lucene filter

getResultSize

public int getResultSize()

Description copied from interface: CacheQuery

Gets the integer number of results.

Specified by:

getResultSize in interface CacheQuery

Returns:

The result size of the query.

sort

public CacheQuery sort(org.apache.lucene.search.Sort sort)

Description copied from interface: CacheQuery

Allows lucene to sort the results. Integers are sorted in descending order.

Specified by:

sort in interface CacheQuery

Parameters:

sort - - lucene sort object

enableFullTextFilter

public org.hibernate.search.FullTextFilter enableFullTextFilter(String name)

Enable a given filter by its name.

Specified by:

enableFullTextFilter in interface CacheQuery

Parameters:

name - of filter.

Returns:

a FullTextFilter object.

disableFullTextFilter

public CacheQuery disableFullTextFilter(String name)

Disable a given filter by its name.

Specified by:

disableFullTextFilter in interface CacheQuery

Parameters:

name - of filter.

firstResult

public CacheQuery firstResult(int firstResult)

Sets the the result of the given integer value to the first result.

Specified by:

firstResult in interface CacheQuery

Parameters:

firstResult - index to be set.

Throws:

IllegalArgumentException - if the index given is less than zero.

maxResults

public CacheQuery maxResults(int maxResults)

Description copied from interface: CacheQuery

Sets the maximum number of results to the number passed in as a parameter.

Specified by:

maxResults in interface CacheQuery

Parameters:

maxResults - that are to be set to the maxResults.

iterator

public QueryIterator iterator()
                       throws org.hibernate.search.SearchException

Description copied from interface: CacheQuery

Returns the results of a search as a QueryIterator. This calls CacheQuery.iterator(int fetchSize) but uses a default fetchSize of 1.

Specified by:

iterator in interface Iterable<Object>

Specified by:

iterator in interface CacheQuery

Returns:

a QueryResultIterator which can be used to iterate through the results that were found.

Throws:

org.hibernate.search.SearchException

iterator

public QueryIterator iterator(int fetchSize)
                       throws org.hibernate.search.SearchException

Description copied from interface: CacheQuery

Returns the results of a search as a QueryIterator with a given integer parameter - the fetchSize.

Specified by:

iterator in interface CacheQuery

Parameters:

fetchSize - integer to be given to the implementation constructor.

Returns:

a QueryResultIterator which can be used to iterate through the results that were found.

Throws:

org.hibernate.search.SearchException

lazyIterator

public QueryIterator lazyIterator()

Description copied from interface: CacheQuery

Calls the CacheQuery.lazyIterator(int fetchSize) method but passes in a default 1 as a parameter.

Specified by:

lazyIterator in interface CacheQuery

Returns:

a QueryResultIterator which can be used to lazily iterate through results.

lazyIterator

public QueryIterator lazyIterator(int fetchSize)

Description copied from interface: CacheQuery

Lazily loads the results from the Query as a QueryIterator with a given integer parameter - the fetchSize.

Specified by:

lazyIterator in interface CacheQuery

Parameters:

fetchSize - integer to be passed into the lazy implementation of QueryIterator

Returns:

a QueryResultIterator which can be used to lazily iterate through results.

list

public List<Object> list()
                  throws org.hibernate.search.SearchException

Description copied from interface: CacheQuery

Returns the results of a search as a list.

Specified by:

list in interface CacheQuery

Returns:

list of objects that were found from the search.

Throws:

org.hibernate.search.SearchException

getFacetManager

public org.hibernate.search.query.engine.spi.FacetManager getFacetManager()

Specified by:

getFacetManager in interface CacheQuery

Returns:

return the manager for all faceting related operations

explain

public org.apache.lucene.search.Explanation explain(int documentId)

Description copied from interface: CacheQuery

Return the Lucene Explanation object describing the score computation for the matching object/document in the current query

Specified by:

explain in interface CacheQuery

Parameters:

documentId - Lucene Document id to be explain. This is NOT the object key

Returns:

Lucene Explanation

projection

public CacheQuery projection(String... fields)

Description copied from interface: CacheQuery

Defines the Lucene field names projected and returned in a query result Each field is converted back to it's object representation, an Object[] being returned for each "row"

A projectable field must be stored in the Lucene index and use a org.hibernate.search.bridge.TwoWayFieldBridge Unless notified in their JavaDoc, all built-in bridges are two-way. All @DocumentId fields are projectable by design.

If the projected field is not a projectable field, null is returned in the object[]

Specified by:

projection in interface CacheQuery

Parameters:

fields - the projected field names

Returns:

this to allow for method chaining