org.apache.solr.search

Class SolrIndexSearcher

java.lang.Object

org.apache.lucene.search.IndexSearcher

org.apache.solr.search.SolrIndexSearcher

All Implemented Interfaces:

Closeable, AutoCloseable, SolrInfoBean, SolrMetricProducer

public class SolrIndexSearcher
extends IndexSearcher
implements Closeable, SolrInfoBean, SolrMetricProducer

SolrIndexSearcher adds schema awareness and caching functionality over IndexSearcher.

Since:

solr 0.9

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	SolrIndexSearcher.DocsEnumState
static class	SolrIndexSearcher.ProcessedFilter

Nested classes/interfaces inherited from class org.apache.lucene.search.IndexSearcher

IndexSearcher.LeafSlice

Nested classes/interfaces inherited from interface org.apache.solr.core.SolrInfoBean

SolrInfoBean.Category, SolrInfoBean.Group

Field Summary

Fields

Modifier and Type	Field and Description
static int	GET_DOCLIST
static int	GET_DOCSET
static int	GET_SCORES
static int	NO_CHECK_QCACHE
static AtomicLong	numCloses
static AtomicLong	numOpens
static String	STATISTICS_KEY
static String	STATS_SOURCE
static int	TERMINATE_EARLY

Fields inherited from class org.apache.lucene.search.IndexSearcher

leafContexts, leafSlices, readerContext

Constructor Summary

Constructors

Constructor and Description
SolrIndexSearcher(SolrCore core, String path, IndexSchema schema, SolrIndexConfig config, String name, boolean enableCache, DirectoryFactory directoryFactory)
SolrIndexSearcher(SolrCore core, String path, IndexSchema schema, String name, DirectoryReader r, boolean closeReader, boolean enableCache, boolean reserveDirectory, DirectoryFactory directoryFactory)

Method Summary

Modifier and Type	Method and Description
void	cacheDocSet(Query query, DocSet optionalAnswer, boolean mustCache) Compute and cache the DocSet that matches a query.
Object	cacheInsert(String cacheName, Object key, Object val) insert an entry in a generic cache
Object	cacheLookup(String cacheName, Object key) lookup an entry in a generic cache
void	close() Free's resources associated with this searcher.
CollectionStatistics	collectionStatistics(String field)
Document	doc(int docId) Retrieve the Document instance corresponding to the document id.
Document	doc(int i, Set<String> fields) Retrieve the Document instance corresponding to the document id.
void	doc(int docId, StoredFieldVisitor visitor) Visit a document's fields using a StoredFieldVisitor.
int	docFreq(Term term)
Explanation	explain(Query query, int doc)
SolrCache	getCache(String cacheName) return the named generic cache
SolrInfoBean.Category	getCategory() Category of this component
SolrCore	getCore()
String	getDescription() Simple one or two line description
SolrDocumentFetcher	getDocFetcher()
DocList	getDocList(Query query, DocSet filter, Sort lsort, int offset, int len) Returns documents matching both query and filter and sorted by sort.
DocList	getDocList(Query query, List<Query> filterList, Sort lsort, int offset, int len, int flags) Returns documents matching both query and the intersection of the filterList, sorted by sort.
DocList	getDocList(Query query, Query filter, Sort lsort, int offset, int len) Returns documents matching both query and filter and sorted by sort.
DocListAndSet	getDocListAndSet(Query query, DocSet filter, Sort lsort, int offset, int len) Returns documents matching both query and filter and sorted by sort.
DocListAndSet	getDocListAndSet(Query query, DocSet filter, Sort lsort, int offset, int len, int flags) Returns documents matching both query and filter and sorted by sort.
DocListAndSet	getDocListAndSet(Query query, List<Query> filterList, Sort lsort, int offset, int len) Returns documents matching both query and the intersection of filterList, sorted by sort.
DocListAndSet	getDocListAndSet(Query query, List<Query> filterList, Sort lsort, int offset, int len, int flags) Returns documents matching both query and the intersection of filterList, sorted by sort.
DocListAndSet	getDocListAndSet(Query query, Query filter, Sort lsort, int offset, int len) Returns documents matching both query and filter and sorted by sort.
DocListAndSet	getDocListAndSet(Query query, Query filter, Sort lsort, int offset, int len, int flags) Returns documents matching both query and filter and sorted by sort.
DocSet	getDocSet(List<Query> queries) Returns the set of document ids matching all queries.
DocSet	getDocSet(Query query) Returns the set of document ids matching a query.
DocSet	getDocSet(Query query, DocSet filter) Returns the set of document ids matching both the query and the filter.
DocSet	getDocSet(SolrIndexSearcher.DocsEnumState deState)
BitDocSet	getDocSetBits(Query q)
protected DocSet	getDocSetNC(Query query, DocSet filter)
FieldInfos	getFieldInfos()
Iterable<String>	getFieldNames() Returns a collection of all field names the index reader knows about.
SolrCache<String,UnInvertedField>	getFieldValueCache() expert: internal API, subject to change
SolrCache<Query,DocSet>	getFilterCache()
int	getFirstMatch(Term t) Returns the first document number containing the term t Returns -1 if no document was found.
IndexFingerprint	getIndexFingerprint(long maxVersion)
DirectoryReader	getIndexReader()
BitDocSet	getLiveDocs() Deprecated.
Bits	getLiveDocsBits() Returns an efficient random-access Bits of the live docs.
BitDocSet	getLiveDocSet() Returns an efficient random-access DocSet of the live docs.
Set<String>	getMetricNames() Modifiable set of metric names that this component reports (default is null, which means none).
com.codahale.metrics.MetricRegistry	getMetricRegistry() An instance of MetricRegistry that this component uses for metrics reporting (default is null, which means no registry).
String	getName() Simple common usage name, e.g.
long	getOpenNanoTime()
Date	getOpenTimeStamp()
String	getPath()
SolrIndexSearcher.ProcessedFilter	getProcessedFilter(DocSet setFilter, List<Query> queries)
DirectoryReader	getRawReader() Raw reader (no fieldcaches etc).
IndexSchema	getSchema() Direct access to the IndexSchema for use with this searcher
LeafReader	getSlowAtomicReader() Not recommended to call this method unless there is some particular reason due to internally calling SlowCompositeReaderWrapper.
void	initializeMetrics(SolrMetricManager manager, String registry, String tag, String scope) Initializes metrics specific to this producer.
static void	initRegenerators(SolrConfig solrConfig)
boolean	intersects(DocSet a, SolrIndexSearcher.DocsEnumState deState)
boolean	isCachingEnabled()
boolean	isLiveDocsInstantiated()
CollectionStatistics	localCollectionStatistics(String field)
TermStatistics	localTermStatistics(Term term, TermContext context)
long	lookupId(BytesRef idBytes) lookup the docid by the unique key field, and return the id *within* the leaf reader in the low 32 bits, and the index of the leaf reader in the high 32 bits.
int	maxDoc()
int	numDocs()
int	numDocs(DocSet a, SolrIndexSearcher.DocsEnumState deState)
int	numDocs(Query a, DocSet b) Returns the number of documents that match both a and b.
int	numDocs(Query a, Query b) Returns the number of documents that match both a and b.
void	register() Register sub-objects such as caches and our own metrics
QueryResult	search(QueryResult qr, QueryCommand cmd)
void	setLiveDocs(DocSet docs)
protected void	sortDocSet(QueryResult qr, QueryCommand cmd)
TermStatistics	termStatistics(Term term, TermContext context)
String	toString()
void	warm(SolrIndexSearcher old) Warm this searcher based on an old one (primarily for auto-cache warming).
Sort	weightSort(Sort sort) Returns a weighted sort according to this searcher
SortSpec	weightSortSpec(SortSpec originalSortSpec, Sort nullEquivalent) Returns a weighted sort spec according to this searcher

Methods inherited from class org.apache.lucene.search.IndexSearcher

count, createNormalizedWeight, createWeight, explain, getDefaultQueryCache, getDefaultQueryCachingPolicy, getDefaultSimilarity, getQueryCache, getQueryCachingPolicy, getSimilarity, getTopReaderContext, rewrite, search, search, search, search, search, search, searchAfter, searchAfter, searchAfter, setDefaultQueryCache, setDefaultQueryCachingPolicy, setQueryCache, setQueryCachingPolicy, setSimilarity, slices

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.solr.core.SolrInfoBean

getMetricsSnapshot, registerMetricName

Methods inherited from interface org.apache.solr.metrics.SolrMetricProducer

initializeMetrics

Field Detail

STATS_SOURCE

public static final String STATS_SOURCE

See Also:

Constant Field Values

STATISTICS_KEY

public static final String STATISTICS_KEY

See Also:

Constant Field Values

numOpens

public static final AtomicLong numOpens

numCloses

public static final AtomicLong numCloses

NO_CHECK_QCACHE

public static final int NO_CHECK_QCACHE

See Also:

Constant Field Values

GET_DOCSET

public static final int GET_DOCSET

See Also:

Constant Field Values

TERMINATE_EARLY

public static final int TERMINATE_EARLY

See Also:

Constant Field Values

GET_DOCLIST

public static final int GET_DOCLIST

See Also:

Constant Field Values

GET_SCORES

public static final int GET_SCORES

See Also:

Constant Field Values

Constructor Detail

SolrIndexSearcher

public SolrIndexSearcher(SolrCore core,
                         String path,
                         IndexSchema schema,
                         SolrIndexConfig config,
                         String name,
                         boolean enableCache,
                         DirectoryFactory directoryFactory)
                  throws IOException

Throws:

IOException

SolrIndexSearcher

public SolrIndexSearcher(SolrCore core,
                         String path,
                         IndexSchema schema,
                         String name,
                         DirectoryReader r,
                         boolean closeReader,
                         boolean enableCache,
                         boolean reserveDirectory,
                         DirectoryFactory directoryFactory)
                  throws IOException

Throws:

IOException

Method Detail

getDocFetcher

public SolrDocumentFetcher getDocFetcher()

getFieldInfos

public FieldInfos getFieldInfos()

termStatistics

public TermStatistics termStatistics(Term term,
                                     TermContext context)
                              throws IOException

Overrides:

termStatistics in class IndexSearcher

Throws:

IOException

collectionStatistics

public CollectionStatistics collectionStatistics(String field)
                                          throws IOException

Overrides:

collectionStatistics in class IndexSearcher

Throws:

IOException

localTermStatistics

public TermStatistics localTermStatistics(Term term,
                                          TermContext context)
                                   throws IOException

Throws:

IOException

localCollectionStatistics

public CollectionStatistics localCollectionStatistics(String field)
                                               throws IOException

Throws:

IOException

isCachingEnabled

public boolean isCachingEnabled()

getPath

public String getPath()

toString

public String toString()

Overrides:

toString in class IndexSearcher

getCore

public SolrCore getCore()

maxDoc

public final int maxDoc()

numDocs

public final int numDocs()

docFreq

public final int docFreq(Term term)
                  throws IOException

Throws:

IOException

getSlowAtomicReader

public final LeafReader getSlowAtomicReader()

Not recommended to call this method unless there is some particular reason due to internally calling SlowCompositeReaderWrapper. Use IndexSearcher.leafContexts to get the sub readers instead of using this method.

getRawReader

public final DirectoryReader getRawReader()

Raw reader (no fieldcaches etc). Useful for operations like addIndexes

getIndexReader

public final DirectoryReader getIndexReader()

Overrides:

getIndexReader in class IndexSearcher

register

public void register()

Register sub-objects such as caches and our own metrics

close

public void close()
           throws IOException

Free's resources associated with this searcher. In particular, the underlying reader and any cache's in use are closed.

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

Throws:

IOException

getSchema

public IndexSchema getSchema()

Direct access to the IndexSchema for use with this searcher

getFieldNames

public Iterable<String> getFieldNames()

Returns a collection of all field names the index reader knows about.

getFilterCache

public SolrCache<Query,DocSet> getFilterCache()

initRegenerators

public static void initRegenerators(SolrConfig solrConfig)

search

public QueryResult search(QueryResult qr,
                          QueryCommand cmd)
                   throws IOException

Throws:

IOException

doc

public Document doc(int docId)
             throws IOException

Retrieve the Document instance corresponding to the document id.

Overrides:

doc in class IndexSearcher

Throws:

IOException

See Also:

SolrDocumentFetcher

doc

public final void doc(int docId,
                      StoredFieldVisitor visitor)
               throws IOException

Visit a document's fields using a StoredFieldVisitor. This method does not currently add to the Solr document cache.

Overrides:

doc in class IndexSearcher

Throws:

IOException

See Also:

IndexReader.document(int, StoredFieldVisitor), SolrDocumentFetcher

doc

public final Document doc(int i,
                          Set<String> fields)
                   throws IOException

Retrieve the Document instance corresponding to the document id.

NOTE: the document will have all fields accessible, but if a field filter is provided, only the provided fields will be loaded (the remainder will be available lazily).

Overrides:

doc in class IndexSearcher

Throws:

IOException

See Also:

SolrDocumentFetcher

getFieldValueCache

public SolrCache<String,UnInvertedField> getFieldValueCache()

expert: internal API, subject to change

weightSort

public Sort weightSort(Sort sort)
                throws IOException

Returns a weighted sort according to this searcher

Throws:

IOException

weightSortSpec

public SortSpec weightSortSpec(SortSpec originalSortSpec,
                               Sort nullEquivalent)
                        throws IOException

Returns a weighted sort spec according to this searcher

Throws:

IOException

getFirstMatch

public int getFirstMatch(Term t)
                  throws IOException

Returns the first document number containing the term t Returns -1 if no document was found. This method is primarily intended for clients that want to fetch documents using a unique identifier."

Returns:

the first document number containing the term

Throws:

IOException

lookupId

public long lookupId(BytesRef idBytes)
              throws IOException

lookup the docid by the unique key field, and return the id *within* the leaf reader in the low 32 bits, and the index of the leaf reader in the high 32 bits. -1 is returned if not found.

Throws:

IOException

NOTE: This API is for internal purposes only and might change in incompatible ways in the next release.

cacheDocSet

public void cacheDocSet(Query query,
                        DocSet optionalAnswer,
                        boolean mustCache)
                 throws IOException

Compute and cache the DocSet that matches a query. The normal usage is expected to be cacheDocSet(myQuery, null,false) meaning that Solr will determine if the Query warrants caching, and if so, will compute the DocSet that matches the Query and cache it. If the answer to the query is already cached, nothing further will be done.

If the optionalAnswer DocSet is provided, it should *not* be modified after this call.

Parameters:

query - the lucene query that will act as the key

optionalAnswer - the DocSet to be cached - if null, it will be computed.

mustCache - if true, a best effort will be made to cache this entry. if false, heuristics may be used to determine if it should be cached.

Throws:

IOException

getDocSetBits

public BitDocSet getDocSetBits(Query q)
                        throws IOException

Throws:

IOException

getDocSet

public DocSet getDocSet(Query query)
                 throws IOException

Returns the set of document ids matching a query. This method is cache-aware and attempts to retrieve the answer from the cache if possible. If the answer was not cached, it may have been inserted into the cache as a result of this call. This method can handle negative queries.

The DocSet returned should not be modified.

Throws:

IOException

getLiveDocs

@Deprecated
public BitDocSet getLiveDocs()
                                  throws IOException

Deprecated.

Throws:

IOException

getLiveDocSet

public BitDocSet getLiveDocSet()
                        throws IOException

Returns an efficient random-access DocSet of the live docs. It's cached. Never null.

Throws:

IOException

NOTE: This API is for internal purposes only and might change in incompatible ways in the next release.

the type of DocSet returned may change in the future

getLiveDocsBits

public Bits getLiveDocsBits()
                     throws IOException

Returns an efficient random-access Bits of the live docs. It's cached. Null means all docs are live. Use this like LeafReader.getLiveDocs().

Throws:

IOException

NOTE: This API is for internal purposes only and might change in incompatible ways in the next release.

isLiveDocsInstantiated

public boolean isLiveDocsInstantiated()

NOTE: This API is for internal purposes only and might change in incompatible ways in the next release.

setLiveDocs

public void setLiveDocs(DocSet docs)

NOTE: This API is for internal purposes only and might change in incompatible ways in the next release.

getDocSet

public DocSet getDocSet(List<Query> queries)
                 throws IOException

Returns the set of document ids matching all queries. This method is cache-aware and attempts to retrieve the answer from the cache if possible. If the answer was not cached, it may have been inserted into the cache as a result of this call. This method can handle negative queries.

The DocSet returned should not be modified.

Throws:

IOException

getProcessedFilter

public SolrIndexSearcher.ProcessedFilter getProcessedFilter(DocSet setFilter,
                                                            List<Query> queries)
                                                     throws IOException

Throws:

IOException

getDocSet

public DocSet getDocSet(SolrIndexSearcher.DocsEnumState deState)
                 throws IOException

Throws:

IOException

NOTE: This API is for internal purposes only and might change in incompatible ways in the next release.

getDocSetNC

protected DocSet getDocSetNC(Query query,
                             DocSet filter)
                      throws IOException

Throws:

IOException

getDocSet

public DocSet getDocSet(Query query,
                        DocSet filter)
                 throws IOException

Returns the set of document ids matching both the query and the filter. This method is cache-aware and attempts to retrieve the answer from the cache if possible. If the answer was not cached, it may have been inserted into the cache as a result of this call.

Parameters:

filter - may be null

Returns:

DocSet meeting the specified criteria, should not be modified by the caller.

Throws:

IOException

getDocList

public DocList getDocList(Query query,
                          Query filter,
                          Sort lsort,
                          int offset,
                          int len)
                   throws IOException

Returns documents matching both query and filter and sorted by sort.

This method is cache aware and may retrieve filter from the cache or make an insertion into the cache as a result of this call.

FUTURE: The returned DocList may be retrieved from a cache.

Parameters:

filter - may be null

lsort - criteria by which to sort (if null, query relevance is used)

offset - offset into the list of documents to return

len - maximum number of documents to return

Returns:

DocList meeting the specified criteria, should not be modified by the caller.

Throws:

IOException - If there is a low-level I/O error.

getDocList

public DocList getDocList(Query query,
                          List<Query> filterList,
                          Sort lsort,
                          int offset,
                          int len,
                          int flags)
                   throws IOException

Returns documents matching both query and the intersection of the filterList, sorted by sort.

This method is cache aware and may retrieve filter from the cache or make an insertion into the cache as a result of this call.

FUTURE: The returned DocList may be retrieved from a cache.

Parameters:

filterList - may be null

lsort - criteria by which to sort (if null, query relevance is used)

offset - offset into the list of documents to return

len - maximum number of documents to return

Returns:

DocList meeting the specified criteria, should not be modified by the caller.

Throws:

IOException - If there is a low-level I/O error.

getDocList

public DocList getDocList(Query query,
                          DocSet filter,
                          Sort lsort,
                          int offset,
                          int len)
                   throws IOException

Returns documents matching both query and filter and sorted by sort. FUTURE: The returned DocList may be retrieved from a cache.

Parameters:

filter - may be null

lsort - criteria by which to sort (if null, query relevance is used)

offset - offset into the list of documents to return

len - maximum number of documents to return

Returns:

DocList meeting the specified criteria, should not be modified by the caller.

Throws:

IOException - If there is a low-level I/O error.

getDocListAndSet

public DocListAndSet getDocListAndSet(Query query,
                                      Query filter,
                                      Sort lsort,
                                      int offset,
                                      int len)
                               throws IOException

Returns documents matching both query and filter and sorted by sort. Also returns the complete set of documents matching query and filter (regardless of offset and len).

This method is cache aware and may retrieve filter from the cache or make an insertion into the cache as a result of this call.

FUTURE: The returned DocList may be retrieved from a cache.

The DocList and DocSet returned should not be modified.

Parameters:

filter - may be null

lsort - criteria by which to sort (if null, query relevance is used)

offset - offset into the list of documents to return

len - maximum number of documents to return

Returns:

DocListAndSet meeting the specified criteria, should not be modified by the caller.

Throws:

IOException - If there is a low-level I/O error.

getDocListAndSet

public DocListAndSet getDocListAndSet(Query query,
                                      Query filter,
                                      Sort lsort,
                                      int offset,
                                      int len,
                                      int flags)
                               throws IOException

Returns documents matching both query and filter and sorted by sort. Also returns the compete set of documents matching query and filter (regardless of offset and len).

This method is cache aware and may retrieve filter from the cache or make an insertion into the cache as a result of this call.

FUTURE: The returned DocList may be retrieved from a cache.

The DocList and DocSet returned should not be modified.

Parameters:

filter - may be null

lsort - criteria by which to sort (if null, query relevance is used)

offset - offset into the list of documents to return

len - maximum number of documents to return

flags - user supplied flags for the result set

Returns:

DocListAndSet meeting the specified criteria, should not be modified by the caller.

Throws:

IOException - If there is a low-level I/O error.

getDocListAndSet

public DocListAndSet getDocListAndSet(Query query,
                                      List<Query> filterList,
                                      Sort lsort,
                                      int offset,
                                      int len)
                               throws IOException

Returns documents matching both query and the intersection of filterList, sorted by sort. Also returns the compete set of documents matching query and filter (regardless of offset and len).

This method is cache aware and may retrieve filter from the cache or make an insertion into the cache as a result of this call.

FUTURE: The returned DocList may be retrieved from a cache.

The DocList and DocSet returned should not be modified.

Parameters:

filterList - may be null

lsort - criteria by which to sort (if null, query relevance is used)

offset - offset into the list of documents to return

len - maximum number of documents to return

Returns:

DocListAndSet meeting the specified criteria, should not be modified by the caller.

Throws:

IOException - If there is a low-level I/O error.

getDocListAndSet

public DocListAndSet getDocListAndSet(Query query,
                                      List<Query> filterList,
                                      Sort lsort,
                                      int offset,
                                      int len,
                                      int flags)
                               throws IOException

Returns documents matching both query and the intersection of filterList, sorted by sort. Also returns the compete set of documents matching query and filter (regardless of offset and len).

This method is cache aware and may retrieve filter from the cache or make an insertion into the cache as a result of this call.

FUTURE: The returned DocList may be retrieved from a cache.

The DocList and DocSet returned should not be modified.

Parameters:

filterList - may be null

lsort - criteria by which to sort (if null, query relevance is used)

offset - offset into the list of documents to return

len - maximum number of documents to return

flags - user supplied flags for the result set

Returns:

DocListAndSet meeting the specified criteria, should not be modified by the caller.

Throws:

IOException - If there is a low-level I/O error.

getDocListAndSet

public DocListAndSet getDocListAndSet(Query query,
                                      DocSet filter,
                                      Sort lsort,
                                      int offset,
                                      int len)
                               throws IOException

Returns documents matching both query and filter and sorted by sort. Also returns the compete set of documents matching query and filter (regardless of offset and len).

FUTURE: The returned DocList may be retrieved from a cache.

Parameters:

filter - may be null

lsort - criteria by which to sort (if null, query relevance is used)

offset - offset into the list of documents to return

len - maximum number of documents to return

Returns:

DocListAndSet meeting the specified criteria, should not be modified by the caller.

Throws:

IOException - If there is a low-level I/O error.

getDocListAndSet

public DocListAndSet getDocListAndSet(Query query,
                                      DocSet filter,
                                      Sort lsort,
                                      int offset,
                                      int len,
                                      int flags)
                               throws IOException

Returns documents matching both query and filter and sorted by sort. Also returns the compete set of documents matching query and filter (regardless of offset and len).

This method is cache aware and may make an insertion into the cache as a result of this call.

FUTURE: The returned DocList may be retrieved from a cache.

The DocList and DocSet returned should not be modified.

Parameters:

filter - may be null

lsort - criteria by which to sort (if null, query relevance is used)

offset - offset into the list of documents to return

len - maximum number of documents to return

flags - user supplied flags for the result set

Returns:

DocListAndSet meeting the specified criteria, should not be modified by the caller.

Throws:

IOException - If there is a low-level I/O error.

sortDocSet

protected void sortDocSet(QueryResult qr,
                          QueryCommand cmd)
                   throws IOException

Throws:

IOException

numDocs

public int numDocs(Query a,
                   DocSet b)
            throws IOException

Returns the number of documents that match both a and b.

This method is cache-aware and may check as well as modify the cache.

Returns:

the number of documents in the intersection between a and b.

Throws:

IOException - If there is a low-level I/O error.

numDocs

public int numDocs(DocSet a,
                   SolrIndexSearcher.DocsEnumState deState)
            throws IOException

Throws:

IOException

NOTE: This API is for internal purposes only and might change in incompatible ways in the next release.

numDocs

public int numDocs(Query a,
                   Query b)
            throws IOException

Returns the number of documents that match both a and b.

This method is cache-aware and may check as well as modify the cache.

Returns:

the number of documents in the intersection between a and b.

Throws:

IOException - If there is a low-level I/O error.

intersects

public boolean intersects(DocSet a,
                          SolrIndexSearcher.DocsEnumState deState)
                   throws IOException

Throws:

IOException

NOTE: This API is for internal purposes only and might change in incompatible ways in the next release.

warm

public void warm(SolrIndexSearcher old)

Warm this searcher based on an old one (primarily for auto-cache warming).

getCache

public SolrCache getCache(String cacheName)

return the named generic cache

cacheLookup

public Object cacheLookup(String cacheName,
                          Object key)

lookup an entry in a generic cache

cacheInsert

public Object cacheInsert(String cacheName,
                          Object key,
                          Object val)

insert an entry in a generic cache

getOpenTimeStamp

public Date getOpenTimeStamp()

getOpenNanoTime

public long getOpenNanoTime()

explain

public Explanation explain(Query query,
                           int doc)
                    throws IOException

Overrides:

explain in class IndexSearcher

Throws:

IOException

getIndexFingerprint

public IndexFingerprint getIndexFingerprint(long maxVersion)
                                     throws IOException

Throws:

IOException

NOTE: This API is for internal purposes only and might change in incompatible ways in the next release.

gets a cached version of the IndexFingerprint for this searcher

getName

public String getName()

Description copied from interface: SolrInfoBean

Simple common usage name, e.g. BasicQueryHandler, or fully qualified class name.

Specified by:

getName in interface SolrInfoBean

getDescription

public String getDescription()

Description copied from interface: SolrInfoBean

Simple one or two line description

Specified by:

getDescription in interface SolrInfoBean

getCategory

public SolrInfoBean.Category getCategory()

Description copied from interface: SolrInfoBean

Category of this component

Specified by:

getCategory in interface SolrInfoBean

getMetricNames

public Set<String> getMetricNames()

Description copied from interface: SolrInfoBean

Modifiable set of metric names that this component reports (default is null, which means none). If not null then this set is used by SolrInfoBean.registerMetricName(String) to capture what metrics names are reported from this component.

NOTE: this set has to allow iteration under modifications.

Specified by:

getMetricNames in interface SolrInfoBean

initializeMetrics

public void initializeMetrics(SolrMetricManager manager,
                              String registry,
                              String tag,
                              String scope)

Description copied from interface: SolrMetricProducer

Initializes metrics specific to this producer.

Note: for back-compatibility this method by default calls SolrMetricProducer.initializeMetrics(SolrMetricManager, String, String).

Specified by:

initializeMetrics in interface SolrMetricProducer

Parameters:

manager - an instance of SolrMetricManager

registry - registry name where metrics are registered

tag - symbolic tag that represents a group of related instances that have the same life-cycle. Parent component can use the tag when calling SolrMetricManager.unregisterGauges(String, String) to unregister metrics created by this instance of the producer.

scope - scope of the metrics (eg. handler name) to separate metrics of instances of the same component executing in different contexts

getMetricRegistry

public com.codahale.metrics.MetricRegistry getMetricRegistry()

Description copied from interface: SolrInfoBean

An instance of MetricRegistry that this component uses for metrics reporting (default is null, which means no registry).

Specified by:

getMetricRegistry in interface SolrInfoBean