## Uses of Class
org.apache.lucene.search.DocIdSet

Packages that use DocIdSet
org.apache.lucene.search: Code to search indices.
org.apache.lucene.util: Some utility classes.

Uses of DocIdSet in org.apache.lucene.search

Subclasses of DocIdSet in org.apache.lucene.search
`class` `FieldCacheDocIdSet` Base class for DocIdSet to be used with FieldCache.
`class` `FilteredDocIdSet` Abstract decorator class for a DocIdSet implementation that provides on-demand filtering/validation mechanism on a given DocIdSet.

Fields in org.apache.lucene.search declared as DocIdSet
`static DocIdSet` `DocIdSet.EMPTY_DOCIDSET` An empty `DocIdSet` instance for easy use, e.g.

Fields in org.apache.lucene.search with type parameters of type DocIdSet
`protected org.apache.lucene.search.CachingWrapperFilter.FilterCache<DocIdSet>` `CachingWrapperFilter.cache`

Methods in org.apache.lucene.search that return DocIdSet
`protected DocIdSet` `CachingWrapperFilter.docIdSetToCache(DocIdSet docIdSet, IndexReader reader)` Provide the DocIdSet to be cached, using the DocIdSet provided by the wrapped Filter.
`DocIdSet` `SpanFilterResult.getDocIdSet()` Returns the docIdSet
`abstract DocIdSet` `Filter.getDocIdSet(IndexReader reader)` Creates a `DocIdSet` enumerating the documents that should be permitted in search results.
`DocIdSet` `FieldCacheTermsFilter.getDocIdSet(IndexReader reader)`
`DocIdSet` `FieldValueFilter.getDocIdSet(IndexReader reader)`
`DocIdSet` `SpanQueryFilter.getDocIdSet(IndexReader reader)`
`DocIdSet` `MultiTermQueryWrapperFilter.getDocIdSet(IndexReader reader)` Returns a DocIdSet with documents that should be permitted in search results.
`DocIdSet` `QueryWrapperFilter.getDocIdSet(IndexReader reader)`
`DocIdSet` `CachingWrapperFilter.getDocIdSet(IndexReader reader)`
`DocIdSet` `CachingSpanFilter.getDocIdSet(IndexReader reader)`
`abstract DocIdSet` `FieldCacheRangeFilter.getDocIdSet(IndexReader reader)` This method is implemented for each data type

Methods in org.apache.lucene.search with parameters of type DocIdSet
`protected DocIdSet` `CachingWrapperFilter.docIdSetToCache(DocIdSet docIdSet, IndexReader reader)` Provide the DocIdSet to be cached, using the DocIdSet provided by the wrapped Filter.

Constructors in org.apache.lucene.search with parameters of type DocIdSet
`FilteredDocIdSet(DocIdSet innerSet)` Constructor.
`SpanFilterResult(DocIdSet docIdSet, List<SpanFilterResult.PositionInfo> positions)`

Uses of DocIdSet in org.apache.lucene.util

Subclasses of DocIdSet in org.apache.lucene.util
`class` `DocIdBitSet` Simple DocIdSet and DocIdSetIterator backed by a BitSet
`class` `FixedBitSet` BitSet of fixed length (numBits), backed by accessible (`FixedBitSet.getBits()`) long[], accessed with an int index, implementing Bits and DocIdSet.
`class` `OpenBitSet` An "open" BitSet implementation that allows direct access to the array of words storing the bits.
`class` `OpenBitSetDISI` OpenBitSet with added methods to bulk-update the bits from a `DocIdSetIterator`.
`class` `SortedVIntList` Stores and iterate on sorted integers in compressed form in RAM.