io.debezium.connector.sqlserver

Class SqlServerSnapshotChangeEventSource

java.lang.Object

io.debezium.relational.HistorizedRelationalSnapshotChangeEventSource

io.debezium.connector.sqlserver.SqlServerSnapshotChangeEventSource

All Implemented Interfaces:

ChangeEventSource, SnapshotChangeEventSource

public class SqlServerSnapshotChangeEventSource
extends HistorizedRelationalSnapshotChangeEventSource

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
private static class	SqlServerSnapshotChangeEventSource.SqlServerSnapshotContext Mutable context which is populated in the course of snapshotting.

Nested classes/interfaces inherited from class io.debezium.relational.HistorizedRelationalSnapshotChangeEventSource

HistorizedRelationalSnapshotChangeEventSource.SnapshotContext, HistorizedRelationalSnapshotChangeEventSource.SnapshottingTask

Nested classes/interfaces inherited from interface io.debezium.pipeline.source.spi.ChangeEventSource

ChangeEventSource.ChangeEventSourceContext

Field Summary

Fields

Modifier and Type	Field and Description
private SqlServerConnectorConfig	connectorConfig
private SqlServerConnection	jdbcConnection
private static org.slf4j.Logger	LOGGER
private static int	TRANSACTION_SNAPSHOT Code 4096 corresponds to SNAPSHOT isolation level, which is not a part of the standard but SQL Server specific.

Constructor Summary

Constructors

Constructor and Description
SqlServerSnapshotChangeEventSource(SqlServerConnectorConfig connectorConfig, SqlServerOffsetContext previousOffset, SqlServerConnection jdbcConnection, SqlServerDatabaseSchema schema, EventDispatcher<TableId> dispatcher, Clock clock, SnapshotProgressListener snapshotProgressListener)

Method Summary

Modifier and Type	Method and Description
protected void	complete(HistorizedRelationalSnapshotChangeEventSource.SnapshotContext snapshotContext)
protected void	connectionCreated(HistorizedRelationalSnapshotChangeEventSource.SnapshotContext snapshotContext)
protected void	determineSnapshotOffset(HistorizedRelationalSnapshotChangeEventSource.SnapshotContext ctx)
protected Set<TableId>	getAllTableIds(HistorizedRelationalSnapshotChangeEventSource.SnapshotContext ctx)
protected ChangeRecordEmitter	getChangeRecordEmitter(HistorizedRelationalSnapshotChangeEventSource.SnapshotContext snapshotContext, TableId tableId, Object[] row)
protected SchemaChangeEvent	getCreateTableEvent(HistorizedRelationalSnapshotChangeEventSource.SnapshotContext snapshotContext, Table table)
protected String	getSnapshotSelect(HistorizedRelationalSnapshotChangeEventSource.SnapshotContext snapshotContext, TableId tableId) Generate a valid sqlserver query string for the specified table
protected HistorizedRelationalSnapshotChangeEventSource.SnapshottingTask	getSnapshottingTask(OffsetContext previousOffset)
protected void	lockTablesForSchemaSnapshot(ChangeEventSource.ChangeEventSourceContext sourceContext, HistorizedRelationalSnapshotChangeEventSource.SnapshotContext snapshotContext)
protected HistorizedRelationalSnapshotChangeEventSource.SnapshotContext	prepare(ChangeEventSource.ChangeEventSourceContext context)
protected void	readTableStructure(ChangeEventSource.ChangeEventSourceContext sourceContext, HistorizedRelationalSnapshotChangeEventSource.SnapshotContext snapshotContext)
protected void	releaseSchemaSnapshotLocks(HistorizedRelationalSnapshotChangeEventSource.SnapshotContext snapshotContext)

Methods inherited from class io.debezium.relational.HistorizedRelationalSnapshotChangeEventSource

execute, getClock

Methods inherited from class java.lang.Object

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

Field Detail

LOGGER

private static final org.slf4j.Logger LOGGER

TRANSACTION_SNAPSHOT

private static final int TRANSACTION_SNAPSHOT

Code 4096 corresponds to SNAPSHOT isolation level, which is not a part of the standard but SQL Server specific.

See Also:

Constant Field Values

connectorConfig

private final SqlServerConnectorConfig connectorConfig

jdbcConnection

private final SqlServerConnection jdbcConnection

Constructor Detail

SqlServerSnapshotChangeEventSource

public SqlServerSnapshotChangeEventSource(SqlServerConnectorConfig connectorConfig,
                                          SqlServerOffsetContext previousOffset,
                                          SqlServerConnection jdbcConnection,
                                          SqlServerDatabaseSchema schema,
                                          EventDispatcher<TableId> dispatcher,
                                          Clock clock,
                                          SnapshotProgressListener snapshotProgressListener)

Method Detail

getSnapshottingTask

protected HistorizedRelationalSnapshotChangeEventSource.SnapshottingTask getSnapshottingTask(OffsetContext previousOffset)

Specified by:

getSnapshottingTask in class HistorizedRelationalSnapshotChangeEventSource

prepare

protected HistorizedRelationalSnapshotChangeEventSource.SnapshotContext prepare(ChangeEventSource.ChangeEventSourceContext context)
                                                                         throws Exception

Specified by:

prepare in class HistorizedRelationalSnapshotChangeEventSource

Throws:

Exception

connectionCreated

protected void connectionCreated(HistorizedRelationalSnapshotChangeEventSource.SnapshotContext snapshotContext)
                          throws Exception

Overrides:

connectionCreated in class HistorizedRelationalSnapshotChangeEventSource

Throws:

Exception

getAllTableIds

protected Set<TableId> getAllTableIds(HistorizedRelationalSnapshotChangeEventSource.SnapshotContext ctx)
                               throws Exception

Specified by:

getAllTableIds in class HistorizedRelationalSnapshotChangeEventSource

Throws:

Exception

lockTablesForSchemaSnapshot

protected void lockTablesForSchemaSnapshot(ChangeEventSource.ChangeEventSourceContext sourceContext,
                                           HistorizedRelationalSnapshotChangeEventSource.SnapshotContext snapshotContext)
                                    throws SQLException,
                                           InterruptedException

Specified by:

lockTablesForSchemaSnapshot in class HistorizedRelationalSnapshotChangeEventSource

Throws:

SQLException

InterruptedException

releaseSchemaSnapshotLocks

protected void releaseSchemaSnapshotLocks(HistorizedRelationalSnapshotChangeEventSource.SnapshotContext snapshotContext)
                                   throws SQLException

Specified by:

releaseSchemaSnapshotLocks in class HistorizedRelationalSnapshotChangeEventSource

Throws:

SQLException

determineSnapshotOffset

protected void determineSnapshotOffset(HistorizedRelationalSnapshotChangeEventSource.SnapshotContext ctx)
                                throws Exception

Specified by:

determineSnapshotOffset in class HistorizedRelationalSnapshotChangeEventSource

Throws:

Exception

readTableStructure

protected void readTableStructure(ChangeEventSource.ChangeEventSourceContext sourceContext,
                                  HistorizedRelationalSnapshotChangeEventSource.SnapshotContext snapshotContext)
                           throws SQLException,
                                  InterruptedException

Specified by:

readTableStructure in class HistorizedRelationalSnapshotChangeEventSource

Throws:

SQLException

InterruptedException

getCreateTableEvent

protected SchemaChangeEvent getCreateTableEvent(HistorizedRelationalSnapshotChangeEventSource.SnapshotContext snapshotContext,
                                                Table table)
                                         throws SQLException

Specified by:

getCreateTableEvent in class HistorizedRelationalSnapshotChangeEventSource

Throws:

SQLException

complete

protected void complete(HistorizedRelationalSnapshotChangeEventSource.SnapshotContext snapshotContext)

Specified by:

complete in class HistorizedRelationalSnapshotChangeEventSource

getSnapshotSelect

protected String getSnapshotSelect(HistorizedRelationalSnapshotChangeEventSource.SnapshotContext snapshotContext,
                                   TableId tableId)

Generate a valid sqlserver query string for the specified table

Specified by:

getSnapshotSelect in class HistorizedRelationalSnapshotChangeEventSource

Parameters:

tableId - the table to generate a query for

Returns:

a valid query string

getChangeRecordEmitter

protected ChangeRecordEmitter getChangeRecordEmitter(HistorizedRelationalSnapshotChangeEventSource.SnapshotContext snapshotContext,
                                                     TableId tableId,
                                                     Object[] row)

Specified by:

getChangeRecordEmitter in class HistorizedRelationalSnapshotChangeEventSource