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

Packages that use Filter
org.apache.lucene.search: Code to search indices.

Uses of Filter in org.apache.lucene.search

Subclasses of Filter in org.apache.lucene.search
`class` `CachingSpanFilter` Wraps another SpanFilter's result and caches it.
`class` `CachingWrapperFilter` Wraps another filter's result and caches it.
`class` `FieldCacheRangeFilter` A range filter built on top of a cached single term field (in `FieldCache`).
`class` `FieldCacheTermsFilter` A `Filter` that only accepts documents whose single term value in the specified field is contained in the provided set of allowed terms.
`class` `MultiTermQueryWrapperFilter` A wrapper for `MultiTermQuery`, that exposes its functionality as a `Filter`.
`class` `NumericRangeFilter` A `Filter` that only accepts numeric values within a specified range.
`class` `PrefixFilter` A Filter that restricts search results to values that have a matching prefix in a given field.
`class` `QueryFilter` Deprecated. use a CachingWrapperFilter with QueryWrapperFilter
`class` `QueryWrapperFilter` Constrains search results to only match those which also match a provided query.
`class` `RangeFilter` Deprecated. Use `TermRangeFilter` for term ranges or `NumericRangeFilter` for numeric ranges instead. This class will be removed in Lucene 3.0.
`class` `SpanFilter` Abstract base class providing a mechanism to restrict searches to a subset of an index and also maintains and returns position information.
`class` `SpanQueryFilter` Constrains search results to only match those which also match a provided query.
`class` `TermRangeFilter` A Filter that restricts search results to a range of term values in a given field.

Fields in org.apache.lucene.search declared as Filter
`Filter` `FilterManager.FilterItem.filter`
`protected Filter` `ConstantScoreQuery.filter`
`protected Filter` `CachingWrapperFilter.filter`

Methods in org.apache.lucene.search that return Filter
`Filter` `FilteredQuery.getFilter()`
`Filter` `ConstantScoreQuery.getFilter()` Returns the encapsulated filter
`Filter` `FilterManager.getFilter(Filter filter)` Returns the cached version of the filter.

Methods in org.apache.lucene.search with parameters of type Filter
`Filter` `FilterManager.getFilter(Filter filter)` Returns the cached version of the filter.
`Hits` `Searcher.search(Query query, Filter filter)` Deprecated. Hits will be removed in Lucene 3.0. Use `Searcher.search(Query, Filter, int)` instead.
`void` `Searcher.search(Query query, Filter filter, Collector results)` Lower-level search API.
`void` `Searcher.search(Query query, Filter filter, HitCollector results)` Deprecated. use `Searcher.search(Query, Filter, Collector)` instead.
`TopDocs` `Searcher.search(Query query, Filter filter, int n)` Finds the top `n` hits for `query`, applying `filter` if non-null.
`TopFieldDocs` `Searcher.search(Query query, Filter filter, int n, Sort sort)` Search implementation with arbitrary sorting.
`Hits` `Searcher.search(Query query, Filter filter, Sort sort)` Deprecated. Hits will be removed in Lucene 3.0. Use `Searcher.search(Query, Filter, int, Sort)` instead.
`void` `ParallelMultiSearcher.search(Weight weight, Filter filter, Collector collector)` Lower-level search API.
`void` `MultiSearcher.search(Weight weight, Filter filter, Collector collector)`
`void` `IndexSearcher.search(Weight weight, Filter filter, Collector collector)`
`void` `Searchable.search(Weight weight, Filter filter, Collector collector)` Lower-level search API.
`abstract void` `Searcher.search(Weight weight, Filter filter, Collector results)`
`void` `Searchable.search(Weight weight, Filter filter, HitCollector results)` Deprecated. use `Searchable.search(Weight, Filter, Collector)` instead.
`void` `Searcher.search(Weight weight, Filter filter, HitCollector results)` Deprecated. use `Searcher.search(Weight, Filter, Collector)` instead.
`TopDocs` `ParallelMultiSearcher.search(Weight weight, Filter filter, int nDocs)` A search implementation which spans a new thread for each Searchable, waits for each search to complete and merge the results back together.
`TopDocs` `MultiSearcher.search(Weight weight, Filter filter, int nDocs)`
`TopDocs` `IndexSearcher.search(Weight weight, Filter filter, int nDocs)`
`TopDocs` `Searchable.search(Weight weight, Filter filter, int n)` Expert: Low-level search implementation.
`abstract TopDocs` `Searcher.search(Weight weight, Filter filter, int n)`
`TopFieldDocs` `ParallelMultiSearcher.search(Weight weight, Filter filter, int nDocs, Sort sort)` A search implementation allowing sorting which spans a new thread for each Searchable, waits for each search to complete and merges the results back together.
`TopFieldDocs` `MultiSearcher.search(Weight weight, Filter filter, int n, Sort sort)`
`TopFieldDocs` `IndexSearcher.search(Weight weight, Filter filter, int nDocs, Sort sort)`
`TopFieldDocs` `Searchable.search(Weight weight, Filter filter, int n, Sort sort)` Expert: Low-level search implementation with arbitrary sorting.
`abstract TopFieldDocs` `Searcher.search(Weight weight, Filter filter, int n, Sort sort)`
`TopFieldDocs` `IndexSearcher.search(Weight weight, Filter filter, int nDocs, Sort sort, boolean fillFields)` Just like `IndexSearcher.search(Weight, Filter, int, Sort)`, but you choose whether or not the fields in the returned `FieldDoc` instances should be set by specifying fillFields.

Constructors in org.apache.lucene.search with parameters of type Filter
`CachingWrapperFilter(Filter filter)` New deletes are ignored by default, which gives higher cache hit rate on reopened readers.
`CachingWrapperFilter(Filter filter, CachingWrapperFilter.DeletesMode deletesMode)` Expert: by default, the cached filter will be shared across reopened segments that only had changes to their deletions.
`ConstantScoreQuery(Filter filter)`
`FilteredQuery(Query query, Filter filter)` Constructs a new query which applies a filter to the results of the original query.
`FilterManager.FilterItem(Filter filter)`

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