Class DoublePointField

    • Constructor Detail

      • DoublePointField

        public DoublePointField()
    • Method Detail

      • readableToIndexed

        public void readableToIndexed​(CharSequence val,
                                      org.apache.lucene.util.BytesRefBuilder result)
        Description copied from class: FieldType
        Given the readable value, return the term value that will match it. This method will modify the size and length of the result parameter and write from offset 0
        readableToIndexed in class FieldType
      • getUninversionType

        public UninvertingReader.Type getUninversionType​(SchemaField sf)
        Description copied from class: FieldType
        If DocValues is not enabled for a field, but it's indexed, docvalues can be constructed on the fly (uninverted, aka fieldcache) on the first request to sort, facet, etc. This specifies the structure to use.

        This method will not be used if the field is (effectively) uninvertible="false"

        Specified by:
        getUninversionType in class FieldType
        sf - field instance
        type to uninvert, or null (to disallow uninversion for the field)
        See Also:
      • getValueSource

        public org.apache.lucene.queries.function.ValueSource getValueSource​(SchemaField field,
                                                                             QParser qparser)
        Description copied from class: FieldType
        called to get the default value source (normally, from the Lucene FieldCache.)
        getValueSource in class FieldType
      • getSingleValueSource

        protected org.apache.lucene.queries.function.ValueSource getSingleValueSource​( choice,
                                                                                      SchemaField f)
        Description copied from class: PointField
        Helper method that will only be called for multivalued Point fields that have doc values. Default impl throws an error indicating that selecting a single value from this multivalued field is not supported for this field type
        Specified by:
        getSingleValueSource in class PointField
        choice - the selector Type to use, will never be null
        f - the field to use, guaranteed to be multivalued.
        See Also:
      • createField

        public org.apache.lucene.index.IndexableField createField​(SchemaField field,
                                                                  Object value)
        Description copied from class: FieldType
        Used for adding a document when a field needs to be created from a type and a string.

        By default, the indexed value is the same as the stored value (taken from toInternal()). Having a different representation for external, internal, and indexed would present quite a few problems given the current Lucene architecture. An analyzer for adding docs would need to translate internal->indexed while an analyzer for querying would need to translate external->indexed.

        The only other alternative to having internal==indexed would be to have internal==external. In this case, toInternal should convert to the indexed representation, toExternal() should do nothing, and createField() should *not* call toInternal, but use the external value and set tokenized=true to get Lucene to convert to the internal(indexed) form. :TODO: clean up and clarify this explanation.

        createField in class FieldType
        See Also: