Module datarush.library

Package com.pervasive.datarush.encoding.binary

Interface ComparableTokenEncoder

All Superinterfaces:

TokenEncoder

public interface ComparableTokenEncoder
extends TokenEncoder

Converts token values into a byte-wise comparable binary encoding.

Method Summary

Modifier and Type	Method	Description
void	encodeFieldAdditionalBytes(BinaryBuilder buffer, int index)	Appends the additional bytes ( those that are required for storage but not for comparison) to the buffer.
void	encodeFieldComparisonBytes(BinaryBuilder buffer, int index)	Appends those bytes that are needed for byte-wise comparison.
boolean	isInverted()	Indicates whether normal ordering is inverted.

Methods inherited from interface com.pervasive.datarush.encoding.TokenEncoder

encode, encodeField, setSource

Method Details

isInverted

boolean isInverted()

Indicates whether normal ordering is inverted.

Returns:

true if ordering is descending, false otherwise.

encodeFieldComparisonBytes

void encodeFieldComparisonBytes(BinaryBuilder buffer,
 int index)

Appends those bytes that are needed for byte-wise comparison.

Parameters:

buffer - the buffer to which to append the encoding

index - the index of the field to encode

encodeFieldAdditionalBytes

void encodeFieldAdditionalBytes(BinaryBuilder buffer,
 int index)

Appends the additional bytes ( those that are required for storage but not for comparison) to the buffer.

Parameters:

buffer - the buffer to which to append the encoding

index - the index of the field to encode