com.github.drinkjava2.jdialects.id
Class SnowflakeGenerator

java.lang.Object
  com.github.drinkjava2.jdialects.id.SnowflakeGenerator

All Implemented Interfaces:

IdGenerator

public class SnowflakeGenerator
extends Object
implements IdGenerator

SnowflakeGenerator is a special generator, only mark this column is a snowflake type column, but getNextID() method does not work, because snowflake value should generated by outside program, it depends on real machine setting, in jDialects there is a SnowflakeCreator tool for these outside program to use

Field Summary

static SnowflakeGenerator

INSTANCE

Constructor Summary

SnowflakeGenerator()

Method Summary

Boolean	dependOnAutoIdGenerator() If depends on AutoIdGenerator, for example SortedUUIDGenerator depends on AutoIdGenerator to create start numbers
GenerationType	getGenerationType() Return GenerationType
String	getIdGenName() Return a unique Id Generator name in this TableModel
Object	getNextID(NormalJdbcTool jdbc, Dialect dialect, Type dataType) Get the next ID generated by implementation of IdGenerator
IdGenerator	newCopy() Return a newCopy (Deep Clone) instance

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

INSTANCE

public static final SnowflakeGenerator INSTANCE

Constructor Detail

SnowflakeGenerator

public SnowflakeGenerator()

Method Detail

getNextID

public Object getNextID(NormalJdbcTool jdbc,
                        Dialect dialect,
                        Type dataType)

Description copied from interface: IdGenerator

Get the next ID generated by implementation of IdGenerator

Specified by:

getNextID in interface IdGenerator

Parameters:

jdbc - A NormalJdbcTool implementation to access database

dialect - The Dialect

dataType - The Type of a column

Returns:

id generated by IdGenerator

getGenerationType

public GenerationType getGenerationType()

Description copied from interface: IdGenerator

Return GenerationType

Specified by:

getGenerationType in interface IdGenerator

getIdGenName

public String getIdGenName()

Description copied from interface: IdGenerator

Return a unique Id Generator name in this TableModel

Specified by:

getIdGenName in interface IdGenerator

newCopy

public IdGenerator newCopy()

Description copied from interface: IdGenerator

Return a newCopy (Deep Clone) instance

Specified by:

newCopy in interface IdGenerator

dependOnAutoIdGenerator

public Boolean dependOnAutoIdGenerator()

Description copied from interface: IdGenerator

If depends on AutoIdGenerator, for example SortedUUIDGenerator depends on AutoIdGenerator to create start numbers

Specified by:

dependOnAutoIdGenerator in interface IdGenerator