Class TermVectorMapper
The TermVectorMapper can be used to map Term Vectors into your own structure instead of the parallel array structure used by GetTermFreqVector(Int32, String).
It is up to the implementation to make sure it is thread-safe.
Inheritance
Namespace:
Assembly: Lucene.Net.NetCore.dll
Syntax
public abstract class TermVectorMapper : objectConstructors
| Name | Description |
|---|---|
| TermVectorMapper() | |
| TermVectorMapper(Boolean, Boolean) |
Properties
| Name | Description |
|---|---|
| IsIgnoringOffsets | |
| IsIgnoringPositions | Indicate to Lucene that even if there are positions stored, this mapper is not interested in them and they can be skipped over. Derived classes should set this to true if they want to ignore positions. The default is false, meaning positions will be loaded if they are stored. |
Methods
| Name | Description |
|---|---|
| Map(String, Int32, TermVectorOffsetInfo[], Int32[]) | Map the Term Vector information into your own structure |
| SetDocumentNumber(Int32) | Passes down the index of the document whose term vector is currently being mapped, once for each top level call to a term vector reader. Default implementation IGNORES the document number. Override if your implementation needs the document number. NOTE: Document numbers are internal to Lucene and subject to change depending on indexing operations. |
| SetExpectations(String, Int32, Boolean, Boolean) | Tell the mapper what to expect in regards to field, number of terms, offset and position storage. This method will be called once before retrieving the vector for a field. This method will be called before |