org.hellojavaer.ddal.sequence

Class DatabaseSequenceRangeGetter

java.lang.Object

org.hellojavaer.ddal.sequence.DatabaseSequenceRangeGetter

All Implemented Interfaces:

SequenceRangeGetter

public class DatabaseSequenceRangeGetter
extends Object
implements SequenceRangeGetter

Sequence Range

Design model: _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ | -------------- | 700 ~ NULL | Master | | | | | -------------- _ _ _ _ _ _ _ _ _ _ _ _ _/ _ _ _ _\ _ _ _ _ _ _ _ _ _ _ _ _ / \ | ------------- ------------- | 120 ~ 200 | | 201 ~ 300 | Follower | 301 ~ 400 | | 501 ~ 600 | | 401 ~ 500 | | 601 ~ 700 | | ------------- ------------- _ _ _ _ _ _ _ _/_ _ _ _ _ \_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ / \ | ------------ ------------- | 1 ~ 20 | | 21 ~ 40 | | 41 ~ 60 | | 81 ~ 100 | Client | 61 ~ 80 | | 101 ~ 120 | ------------ ------------- / | \ / | \ | [id] [id] [id] [id] [id] [id] _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Between master and client,there can be multiple followers. Sequence range is firstly allocated by master. The lower layer request sequence range to the higher layer and then allocate sequence range to its lower.

Author:

Kaiming Zou,created on 04/01/2017.

Constructor Summary

Constructors

Constructor and Description
DatabaseSequenceRangeGetter()
DatabaseSequenceRangeGetter(Connection connection, String scName)
DatabaseSequenceRangeGetter(Connection connection, String scName, String tbName)
DatabaseSequenceRangeGetter(DataSource dataSource, String scName)
DatabaseSequenceRangeGetter(DataSource dataSource, String scName, String tbName)

Method Summary

Methods

Modifier and Type	Method and Description
SequenceRange	get(String schemaName, String tableName, int step)
String	getColNameOfDeleted()
String	getColNameOfEndValue()
String	getColNameOfNextValue()
String	getColNameOfPrimaryKey()
String	getColNameOfSchemaName()
String	getColNameOfSelectOrder()
String	getColNameOfSkipNSteps()
String	getColNameOfStep()
String	getColNameOfTableName()
String	getColNameOfVersion()
Connection	getConnection()
DataSource	getDataSource()
String	getScName()
String	getTbName()
void	init()
void	setColNameOfDeleted(String colNameOfDeleted)
void	setColNameOfEndValue(String colNameOfEndValue)
void	setColNameOfNextValue(String colNameOfNextValue)
void	setColNameOfPrimaryKey(String colNameOfPrimaryKey)
void	setColNameOfSchemaName(String colNameOfSchemaName)
void	setColNameOfSelectOrder(String colNameOfSelectOrder)
void	setColNameOfSkipNSteps(String colNameOfSkipNSteps)
void	setColNameOfStep(String colNameOfStep)
void	setColNameOfTableName(String colNameOfTableName)
void	setColNameOfVersion(String colNameOfVersion)
void	setConnection(Connection connection)
void	setDataSource(DataSource dataSource)
void	setScName(String scName)
void	setTbName(String tbName)

Methods inherited from class java.lang.Object

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

Constructor Detail

DatabaseSequenceRangeGetter

public DatabaseSequenceRangeGetter()

DatabaseSequenceRangeGetter

public DatabaseSequenceRangeGetter(DataSource dataSource,
                           String scName)

DatabaseSequenceRangeGetter

public DatabaseSequenceRangeGetter(DataSource dataSource,
                           String scName,
                           String tbName)

DatabaseSequenceRangeGetter

public DatabaseSequenceRangeGetter(Connection connection,
                           String scName)

DatabaseSequenceRangeGetter

public DatabaseSequenceRangeGetter(Connection connection,
                           String scName,
                           String tbName)

Method Detail

init

public void init()

get

public SequenceRange get(String schemaName,
                String tableName,
                int step)
                  throws Exception

Specified by:

get in interface SequenceRangeGetter

Throws:

Exception

getDataSource

public DataSource getDataSource()

setDataSource

public void setDataSource(DataSource dataSource)

getConnection

public Connection getConnection()

setConnection

public void setConnection(Connection connection)

getScName

public String getScName()

setScName

public void setScName(String scName)

getTbName

public String getTbName()

setTbName

public void setTbName(String tbName)

getColNameOfPrimaryKey

public String getColNameOfPrimaryKey()

setColNameOfPrimaryKey

public void setColNameOfPrimaryKey(String colNameOfPrimaryKey)

getColNameOfSchemaName

public String getColNameOfSchemaName()

setColNameOfSchemaName

public void setColNameOfSchemaName(String colNameOfSchemaName)

getColNameOfTableName

public String getColNameOfTableName()

setColNameOfTableName

public void setColNameOfTableName(String colNameOfTableName)

getColNameOfStep

public String getColNameOfStep()

setColNameOfStep

public void setColNameOfStep(String colNameOfStep)

getColNameOfSkipNSteps

public String getColNameOfSkipNSteps()

setColNameOfSkipNSteps

public void setColNameOfSkipNSteps(String colNameOfSkipNSteps)

getColNameOfSelectOrder

public String getColNameOfSelectOrder()

setColNameOfSelectOrder

public void setColNameOfSelectOrder(String colNameOfSelectOrder)

getColNameOfEndValue

public String getColNameOfEndValue()

setColNameOfEndValue

public void setColNameOfEndValue(String colNameOfEndValue)

getColNameOfNextValue

public String getColNameOfNextValue()

setColNameOfNextValue

public void setColNameOfNextValue(String colNameOfNextValue)

getColNameOfDeleted

public String getColNameOfDeleted()

setColNameOfDeleted

public void setColNameOfDeleted(String colNameOfDeleted)

getColNameOfVersion

public String getColNameOfVersion()

setColNameOfVersion

public void setColNameOfVersion(String colNameOfVersion)