Class OrdFieldSource
Expert: obtains the ordinal of the field value from the default Lucene
Field
The native lucene index order is used to assign an ordinal value for each field value.
Field values (terms) are lexicographically ordered by unicode value, and numbered starting at 1.
Example:
If there were only three field values: "apple","banana","pear"
then ord("apple")=1, ord("banana")=2, ord("pear")=3
WARNING: ord() depends on the position in an index and can thus change when other documents are inserted or deleted, or if a MultiSearcher is used.
WARNING: The status of the Search.Function package is experimental. The APIs introduced here might change in the future and will not be supported anymore in such a case.
NOTE: with the switch in 2.9 to segment-based
searching, if Get
Inherited Members
Namespace:
Assembly: Lucene.Net.NetCore.dll
Syntax
public class OrdFieldSource : ValueSource
Constructors
Name | Description |
---|---|
Ord |
Constructor for a certain field. |
Fields
Name | Description |
---|---|
field |
Methods
Name | Description |
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Description() | |
Equals(Object) | |
Get |
|
Get |