org.apache.shardingsphere.data.pipeline.spi.check.consistency

Interface SingleTableDataCalculator

public interface SingleTableDataCalculator

Single table data calculator interface, SPI.

SPI implementation will be initialized as new instance every time.

Method Summary

Modifier and Type	Method and Description
Iterable<Object>	calculate(DataCalculateParameter dataCalculateParameter) Calculate table data content, return checksum typically.
Properties	getAlgorithmProps() Get algorithm properties.
String	getAlgorithmType() Get algorithm type.
Collection<String>	getDatabaseTypes() Get database types.
void	init() Initialize create data calculator.
void	setAlgorithmProps(Properties algorithmProps) Set algorithm properties.

Method Detail

getAlgorithmType

String getAlgorithmType()

Get algorithm type.

Returns:

algorithm type

getDatabaseTypes

Collection<String> getDatabaseTypes()

Get database types.

Returns:

database types

getAlgorithmProps

Properties getAlgorithmProps()

Get algorithm properties.

Returns:

properties

setAlgorithmProps

void setAlgorithmProps(Properties algorithmProps)

Set algorithm properties. Used by data consistency check algorithm.

Parameters:

algorithmProps - algorithm properties

init

void init()

Initialize create data calculator.

calculate

Iterable<Object> calculate(DataCalculateParameter dataCalculateParameter)

Calculate table data content, return checksum typically.

Parameters:

dataCalculateParameter - data calculate parameter

Returns:

calculated result, it will be used to check equality.