DBReplicator

Open Source Database Replication

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org.dbreplicator.replication.DBHandler
Class DB2Handler

java.lang.Object
  org.dbreplicator.replication.DBHandler.AbstractDataBaseHandler
      org.dbreplicator.replication.DBHandler.DB2Handler

public class DB2Handler
extends AbstractDataBaseHandler

Method overrides specific to DB2.

Field Summary

Fields inherited from class org.dbreplicator.replication.DBHandler.AbstractDataBaseHandler

ignoredColumns_Table, trackPrimaryKeyUpdation_Table, trackReplicationTablesUpdation_Table

Constructor Summary

DB2Handler()

DB2Handler(ConnectionPool connectionPool0)

Method Summary

void	createShadowTable(java.lang.String pubsubName, java.lang.String tableName, java.lang.String allColseq, java.lang.String[] primaryColumns) Creates Shadow Table as per the database.
void	createShadowTableTriggers(java.lang.String pubsubName, java.lang.String tableName, java.util.ArrayList colInfoList, java.lang.String[] primCols) Creates ShadowTable triggers on different replication tables.
int	getAppropriatePrecision(int columnSize, java.lang.String datatypeName) This method is implemented in child classes if precision exceed the maximum precision of the data type
int	getAppropriateScale(int columnScale)
AbstractColumnObject	getColumnObject(TypeInfo typeInfo) According to the sqlType, different column's for different databases are handled saperately.
boolean	isDataTypeOptionalSizeSupported(TypeInfo typeInfo)
boolean	isForeignKeyException(java.sql.SQLException ex) To get the foreign key error code to resolve the Synchronization problem when tables have parent - child relationship.
boolean	isPrimaryKeyException(java.sql.SQLException ex)
boolean	isSchemaSupported() isSchemaSupported
java.sql.PreparedStatement	makePrimaryPreperedStatement(java.sql.Connection pub_sub_Connection, java.lang.String[] primaryColumns, java.lang.String shadowTable, java.lang.String local_pub_sub_name)
java.sql.PreparedStatement	makePrimaryPreperedStatementBackwardTraversing(java.lang.String[] primaryColumns, long lastId, java.lang.String local_pub_sub_name, java.lang.String shadowTable)
void	makeProvisionForLOBDataTypes(java.util.ArrayList dataTypeMap)
void	setTypeInfo(TypeInfo typeInfo, java.sql.ResultSet rs) This is a very important function which sets the parameter (instance of Class TypeInfo) with the corresponding typeName of the sqlType for different databases.

Methods inherited from class org.dbreplicator.replication.DBHandler.AbstractDataBaseHandler

checkSchema, createClientSystemTables, createRemoteSystemTables, createSchemas, CreateSequenceOnLogTable, CreateSequenceOnRepTable, CreateSequenceOnShadowTable, createSubscribedTablesTriggersAndShadowTables, deleteRecordsFromSuperLogTable, dropGenerators, dropPublisherSystemTables, dropSequences, dropSubscriberSystemTables, dropTriggersAndShadowTable, fireDropQuery, getBookMarkTableName, getColumnNamesAndDataTypes, getColumnNamesAndDataTypes1, getIgnoredColumns_Table, getLocalServerName, getLogTableName, getMinValOfSyncIdTodeleteRecordsFromShadowTable, getPublicationTableName, getRepTableName, getScheduleTableName, getShadowTableColumnDataTypeSequence, getShadowTableName, getSubscriptionTableName, getTableColumns, getTrackPrimayKeyUpdation_Table, getTrackReplicationTablesUpdation_Table, getvendorName, saveRepTableData, setColumnPrecisionInTypeInfo, setDefaultSchema, setIgnoredColumns, setLocalServerName, updateDataType

Methods inherited from class java.lang.Object

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

Constructor Detail

DB2Handler

public DB2Handler()

DB2Handler

public DB2Handler(ConnectionPool connectionPool0)

Method Detail

createShadowTable

public void createShadowTable(java.lang.String pubsubName,
                              java.lang.String tableName,
                              java.lang.String allColseq,
                              java.lang.String[] primaryColumns)
                       throws RepException

Description copied from class: AbstractDataBaseHandler

Creates Shadow Table as per the database.

Specified by:

createShadowTable in class AbstractDataBaseHandler

Throws:

RepException

createShadowTableTriggers

public void createShadowTableTriggers(java.lang.String pubsubName,
                                      java.lang.String tableName,
                                      java.util.ArrayList colInfoList,
                                      java.lang.String[] primCols)
                               throws RepException

Description copied from class: AbstractDataBaseHandler

Creates ShadowTable triggers on different replication tables.

Specified by:

createShadowTableTriggers in class AbstractDataBaseHandler

Throws:

RepException

isDataTypeOptionalSizeSupported

public boolean isDataTypeOptionalSizeSupported(TypeInfo typeInfo)

Specified by:

isDataTypeOptionalSizeSupported in class AbstractDataBaseHandler

setTypeInfo

public void setTypeInfo(TypeInfo typeInfo,
                        java.sql.ResultSet rs)
                 throws RepException,
                        java.sql.SQLException

Description copied from class: AbstractDataBaseHandler

This is a very important function which sets the parameter (instance of Class TypeInfo) with the corresponding typeName of the sqlType for different databases. So that we can make corresponding queries.

Specified by:

setTypeInfo in class AbstractDataBaseHandler

Throws:

RepException

java.sql.SQLException

getColumnObject

public AbstractColumnObject getColumnObject(TypeInfo typeInfo)
                                     throws RepException

Description copied from class: AbstractDataBaseHandler

According to the sqlType, different column's for different databases are handled saperately. It returns the object of AbstractColumnObject which is extended by each type of column Object classes. This fundamental is used basically for handeling Blob and Clob type of columns.

Specified by:

getColumnObject in class AbstractDataBaseHandler

Throws:

RepException

isPrimaryKeyException

public boolean isPrimaryKeyException(java.sql.SQLException ex)
                              throws java.sql.SQLException

Specified by:

isPrimaryKeyException in class AbstractDataBaseHandler

Throws:

java.sql.SQLException

getAppropriatePrecision

public int getAppropriatePrecision(int columnSize,
                                   java.lang.String datatypeName)

Description copied from class: AbstractDataBaseHandler

This method is implemented in child classes if precision exceed the maximum precision of the data type

Overrides:

getAppropriatePrecision in class AbstractDataBaseHandler

Parameters:

columnSize - int

Returns:

int

makeProvisionForLOBDataTypes

public void makeProvisionForLOBDataTypes(java.util.ArrayList dataTypeMap)

Overrides:

makeProvisionForLOBDataTypes in class AbstractDataBaseHandler

getAppropriateScale

public int getAppropriateScale(int columnScale)
                        throws RepException

Specified by:

getAppropriateScale in class AbstractDataBaseHandler

Throws:

RepException

makePrimaryPreperedStatement

public java.sql.PreparedStatement makePrimaryPreperedStatement(java.sql.Connection pub_sub_Connection,
                                                               java.lang.String[] primaryColumns,
                                                               java.lang.String shadowTable,
                                                               java.lang.String local_pub_sub_name)
                                                        throws java.sql.SQLException,
                                                               RepException

Specified by:

makePrimaryPreperedStatement in class AbstractDataBaseHandler

Throws:

java.sql.SQLException

RepException

isForeignKeyException

public boolean isForeignKeyException(java.sql.SQLException ex)
                              throws java.sql.SQLException

Description copied from class: AbstractDataBaseHandler

To get the foreign key error code to resolve the Synchronization problem when tables have parent - child relationship.

Specified by:

isForeignKeyException in class AbstractDataBaseHandler

Returns:

String

Throws:

java.sql.SQLException

makePrimaryPreperedStatementBackwardTraversing

public java.sql.PreparedStatement makePrimaryPreperedStatementBackwardTraversing(java.lang.String[] primaryColumns,
                                                                                 long lastId,
                                                                                 java.lang.String local_pub_sub_name,
                                                                                 java.lang.String shadowTable)
                                                                          throws java.sql.SQLException,
                                                                                 RepException

Specified by:

makePrimaryPreperedStatementBackwardTraversing in class AbstractDataBaseHandler

Throws:

java.sql.SQLException

RepException

isSchemaSupported

public boolean isSchemaSupported()

isSchemaSupported

Specified by:

isSchemaSupported in class AbstractDataBaseHandler

Returns:

boolean