Class SpanFilter
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.
Inherited Members
Namespace:
Assembly: Lucene.Net.NetCore.dll
Syntax
public abstract class SpanFilter : FilterMethods
| Name | Description |
|---|---|
| BitSpans(IndexReader) | Returns a SpanFilterResult with true for documents which should be permitted in search results, and false for those that should not and Spans for where the true docs match. |