Abstract base class providing a mechanism to restrict searches to a subset of an index and also maintains and returns position information. This is useful if you want to compare the positions from a SpanQuery with the positions of items in a filter. For instance, if you had a SpanFilter that marked all the occurrences of the word "foo" in documents, and then you entered a new SpanQuery containing bar, you could not only filter by the word foo, but you could then compare position information for post processing.
For a list of all members of this type, see SpanFilter Members.
System.Object
Lucene.Net.Search.Filter
Lucene.Net.Search.SpanFilter
Lucene.Net.Search.CachingSpanFilter
Lucene.Net.Search.SpanQueryFilter
Public static (Shared in Visual Basic) members of this type are safe for multithreaded operations. Instance members are not guaranteed to be thread-safe.
Namespace: Lucene.Net.Search
Assembly: Lucene.Net (in Lucene.Net.dll)
SpanFilter Members | Lucene.Net.Search Namespace