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Open Source Database Replication

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org.dbreplicator.replication.DBHandler
Class OracleHandler

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

public class OracleHandler
extends AbstractDataBaseHandler

Method overrides specific to Oracle.

Field Summary

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

ignoredColumns_Table, trackPrimaryKeyUpdation_Table, trackReplicationTablesUpdation_Table

Constructor Summary

OracleHandler()

OracleHandler(ConnectionPool connectionPool0)

Method Summary

void	createScheduleTable(java.lang.String subName)
void	CreateSequenceOnLogTable(java.lang.String pubsubName)
void	CreateSequenceOnRepTable(java.lang.String pubsubName)
void	createShadowTable(java.lang.String pubsubName, java.lang.String tableName, java.lang.String allColSequence, 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.
void	deleteRecordsFromSuperLogTable(java.sql.Statement subStatment)
void	dropPublisherSystemTables(java.sql.Connection con)
void	dropSequences(java.sql.Connection con, java.lang.String sequenceName)
void	dropSubscriberSystemTables(java.sql.Connection con)
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.
java.lang.String	getTableColumns(int VendorType, java.lang.String ColumnName, TypeInfo typeInfo, int columnPrecision, java.sql.ResultSet rs)
boolean	isColumnSizeExceedMaximumSize(TypeInfo typeInfo)
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 dataTypeList)
java.lang.String	saveRepTableData(java.sql.Connection connection, java.lang.String pubsubName, RepTable repTable) Save the RepTable data which is a system table.
void	setColumnPrecisionInTypeInfo(TypeInfo typeInfo, java.sql.ResultSetMetaData rsmt, int columnIndex)
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, CreateSequenceOnShadowTable, createSubscribedTablesTriggersAndShadowTables, dropGenerators, dropTriggersAndShadowTable, fireDropQuery, getBookMarkTableName, getColumnNamesAndDataTypes, getColumnNamesAndDataTypes1, getIgnoredColumns_Table, getLocalServerName, getLogTableName, getMinValOfSyncIdTodeleteRecordsFromShadowTable, getPublicationTableName, getRepTableName, getScheduleTableName, getShadowTableColumnDataTypeSequence, getShadowTableName, getSubscriptionTableName, getTrackPrimayKeyUpdation_Table, getTrackReplicationTablesUpdation_Table, getvendorName, setDefaultSchema, setIgnoredColumns, setLocalServerName, updateDataType

Methods inherited from class java.lang.Object

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

Constructor Detail

OracleHandler

public OracleHandler()

OracleHandler

public OracleHandler(ConnectionPool connectionPool0)

Method Detail

CreateSequenceOnLogTable

public void CreateSequenceOnLogTable(java.lang.String pubsubName)
                              throws java.sql.SQLException,
                                     RepException

Overrides:

CreateSequenceOnLogTable in class AbstractDataBaseHandler

Throws:

java.sql.SQLException

RepException

CreateSequenceOnRepTable

public void CreateSequenceOnRepTable(java.lang.String pubsubName)
                              throws java.sql.SQLException,
                                     RepException

Overrides:

CreateSequenceOnRepTable in class AbstractDataBaseHandler

Throws:

java.sql.SQLException

RepException

createScheduleTable

public void createScheduleTable(java.lang.String subName)
                         throws java.sql.SQLException,
                                RepException

Throws:

java.sql.SQLException

RepException

createShadowTable

public void createShadowTable(java.lang.String pubsubName,
                              java.lang.String tableName,
                              java.lang.String allColSequence,
                              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

saveRepTableData

public java.lang.String saveRepTableData(java.sql.Connection connection,
                                         java.lang.String pubsubName,
                                         RepTable repTable)
                                  throws java.sql.SQLException,
                                         RepException

Description copied from class: AbstractDataBaseHandler

Save the RepTable data which is a system table. It store the Publication/Subscription Name, its corresponding table with filter clause and conflict resolver.

Overrides:

saveRepTableData in class AbstractDataBaseHandler

Throws:

java.sql.SQLException

RepException

dropSequences

public void dropSequences(java.sql.Connection con,
                          java.lang.String sequenceName)
                   throws java.sql.SQLException

Overrides:

dropSequences in class AbstractDataBaseHandler

Throws:

java.sql.SQLException

makeProvisionForLOBDataTypes

public void makeProvisionForLOBDataTypes(java.util.ArrayList dataTypeList)

Overrides:

makeProvisionForLOBDataTypes in class AbstractDataBaseHandler

isColumnSizeExceedMaximumSize

public boolean isColumnSizeExceedMaximumSize(TypeInfo typeInfo)
                                      throws java.sql.SQLException,
                                             RepException

Throws:

java.sql.SQLException

RepException

isPrimaryKeyException

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

Specified by:

isPrimaryKeyException in class AbstractDataBaseHandler

Throws:

java.sql.SQLException

setColumnPrecisionInTypeInfo

public void setColumnPrecisionInTypeInfo(TypeInfo typeInfo,
                                         java.sql.ResultSetMetaData rsmt,
                                         int columnIndex)
                                  throws java.sql.SQLException

Overrides:

setColumnPrecisionInTypeInfo 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

getTableColumns

public java.lang.String getTableColumns(int VendorType,
                                        java.lang.String ColumnName,
                                        TypeInfo typeInfo,
                                        int columnPrecision,
                                        java.sql.ResultSet rs)
                                 throws RepException,
                                        java.sql.SQLException

Overrides:

getTableColumns in class AbstractDataBaseHandler

Throws:

RepException

java.sql.SQLException

getAppropriateScale

public int getAppropriateScale(int columnScale)
                        throws RepException

Specified by:

getAppropriateScale in class AbstractDataBaseHandler

Throws:

RepException

dropPublisherSystemTables

public void dropPublisherSystemTables(java.sql.Connection con)

Overrides:

dropPublisherSystemTables in class AbstractDataBaseHandler

dropSubscriberSystemTables

public void dropSubscriberSystemTables(java.sql.Connection con)

Overrides:

dropSubscriberSystemTables in class AbstractDataBaseHandler

deleteRecordsFromSuperLogTable

public void deleteRecordsFromSuperLogTable(java.sql.Statement subStatment)
                                    throws java.sql.SQLException

Overrides:

deleteRecordsFromSuperLogTable in class AbstractDataBaseHandler

Throws:

java.sql.SQLException

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