SolrIndexSearcher (Solr 7.1.0 API)

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

Nested Classes
Modifier and Type	Class and Description
`static class`	`SolrIndexSearcher.DocsEnumState`
`static class`	`SolrIndexSearcher.ProcessedFilter`

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

All Methods Static Methods Instance Methods Concrete Methods
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()`
`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 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

- 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
```
public BitDocSet getLiveDocs()
                      throws IOException
```
    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
  - 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 scope)
```
    Description copied from interface: SolrMetricProducer
    
    Initializes metrics specific to this producer
    
    Specified by:
    
    initializeMetrics in interface SolrMetricProducer
    
    Parameters:
    
    manager - an instance of SolrMetricManager
    
    registry - registry name where metrics are registered
    
    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

Class SolrIndexSearcher

Nested Class Summary

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

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

Field Summary

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

Constructor Summary

Method Summary

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

Methods inherited from class java.lang.Object

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

Field Detail

STATS_SOURCE

STATISTICS_KEY

numOpens

numCloses

NO_CHECK_QCACHE

GET_DOCSET

TERMINATE_EARLY

GET_DOCLIST

GET_SCORES

Constructor Detail

SolrIndexSearcher

SolrIndexSearcher

Method Detail

getDocFetcher

getFieldInfos

termStatistics

collectionStatistics

localTermStatistics

localCollectionStatistics

isCachingEnabled

getPath

toString

getCore

maxDoc

numDocs

docFreq

getSlowAtomicReader

getRawReader

getIndexReader

register

close

getSchema

getFieldNames

getFilterCache

initRegenerators

search

doc

doc

doc

getFieldValueCache

weightSort

weightSortSpec

getFirstMatch

lookupId

cacheDocSet

getDocSetBits

getDocSet

getLiveDocs

isLiveDocsInstantiated

setLiveDocs

getDocSet

getProcessedFilter

getDocSet

getDocSetNC

getDocSet

getDocList

getDocList

getDocList

getDocListAndSet

getDocListAndSet

getDocListAndSet

getDocListAndSet

getDocListAndSet

getDocListAndSet

sortDocSet

numDocs

numDocs

numDocs