io.debezium.connector.oracle

Class OracleSnapshotChangeEventSource

java.lang.Object

io.debezium.pipeline.source.AbstractSnapshotChangeEventSource

io.debezium.relational.RelationalSnapshotChangeEventSource

io.debezium.connector.oracle.OracleSnapshotChangeEventSource

All Implemented Interfaces:

ChangeEventSource, SnapshotChangeEventSource

public class OracleSnapshotChangeEventSource
extends RelationalSnapshotChangeEventSource

A StreamingChangeEventSource for Oracle.

Author:

Gunnar Morling

Nested Class Summary

Nested Classes

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

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

RelationalSnapshotChangeEventSource.RelationalSnapshotContext

Nested classes/interfaces inherited from class io.debezium.pipeline.source.AbstractSnapshotChangeEventSource

AbstractSnapshotChangeEventSource.SnapshotContext, AbstractSnapshotChangeEventSource.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 OracleConnectorConfig	connectorConfig
private OracleConnection	jdbcConnection
private static org.slf4j.Logger	LOGGER

Fields inherited from class io.debezium.relational.RelationalSnapshotChangeEventSource

clock, dispatcher

Constructor Summary

Constructors

Constructor and Description
OracleSnapshotChangeEventSource(OracleConnectorConfig connectorConfig, OracleOffsetContext previousOffset, OracleConnection jdbcConnection, OracleDatabaseSchema schema, EventDispatcher<TableId> dispatcher, Clock clock, SnapshotProgressListener snapshotProgressListener)

Method Summary

Modifier and Type	Method and Description
private boolean	areSameTimestamp(Scn scn1, Scn scn2) Whether the two SCNs represent the same timestamp or not (resolution is only 3 seconds).
protected void	complete(AbstractSnapshotChangeEventSource.SnapshotContext snapshotContext)
protected void	determineSnapshotOffset(RelationalSnapshotChangeEventSource.RelationalSnapshotContext ctx)
protected String	enhanceOverriddenSelect(RelationalSnapshotChangeEventSource.RelationalSnapshotContext snapshotContext, String overriddenSelect, TableId tableId)
protected Set<TableId>	getAllTableIds(RelationalSnapshotChangeEventSource.RelationalSnapshotContext ctx)
protected SchemaChangeEvent	getCreateTableEvent(RelationalSnapshotChangeEventSource.RelationalSnapshotContext snapshotContext, Table table)
private Scn	getCurrentScn(AbstractSnapshotChangeEventSource.SnapshotContext ctx)
private Optional<Scn>	getLatestTableDdlScn(RelationalSnapshotChangeEventSource.RelationalSnapshotContext ctx) Returns the SCN of the latest DDL change to the captured tables.
protected Optional<String>	getSnapshotSelect(RelationalSnapshotChangeEventSource.RelationalSnapshotContext snapshotContext, TableId tableId)
protected AbstractSnapshotChangeEventSource.SnapshottingTask	getSnapshottingTask(OffsetContext previousOffset)
protected void	lockTablesForSchemaSnapshot(ChangeEventSource.ChangeEventSourceContext sourceContext, RelationalSnapshotChangeEventSource.RelationalSnapshotContext snapshotContext)
protected AbstractSnapshotChangeEventSource.SnapshotContext	prepare(ChangeEventSource.ChangeEventSourceContext context)
private static String	quote(TableId tableId)
protected void	readTableStructure(ChangeEventSource.ChangeEventSourceContext sourceContext, RelationalSnapshotChangeEventSource.RelationalSnapshotContext snapshotContext)
protected void	releaseSchemaSnapshotLocks(RelationalSnapshotChangeEventSource.RelationalSnapshotContext snapshotContext)

Methods inherited from class io.debezium.relational.RelationalSnapshotChangeEventSource

connectionCreated, createSchemaChangeEventsForTables, createSnapshotConnection, doExecute, getChangeRecordEmitter, getClock, getColumnValue, getColumnValue, lastSnapshotRecord, postSnapshot, readTableStatement, releaseDataSnapshotLocks, rowCountForTable, tryStartingSnapshot

Methods inherited from class io.debezium.pipeline.source.AbstractSnapshotChangeEventSource

delaySnapshotIfNeeded, determineDataCollectionsToBeSnapshotted, execute

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

connectorConfig

private final OracleConnectorConfig connectorConfig

jdbcConnection

private final OracleConnection jdbcConnection

Constructor Detail

OracleSnapshotChangeEventSource

public OracleSnapshotChangeEventSource(OracleConnectorConfig connectorConfig,
                                       OracleOffsetContext previousOffset,
                                       OracleConnection jdbcConnection,
                                       OracleDatabaseSchema schema,
                                       EventDispatcher<TableId> dispatcher,
                                       Clock clock,
                                       SnapshotProgressListener snapshotProgressListener)

Method Detail

getSnapshottingTask

protected AbstractSnapshotChangeEventSource.SnapshottingTask getSnapshottingTask(OffsetContext previousOffset)

Specified by:

getSnapshottingTask in class AbstractSnapshotChangeEventSource

prepare

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

Specified by:

prepare in class AbstractSnapshotChangeEventSource

Throws:

Exception

getAllTableIds

protected Set<TableId> getAllTableIds(RelationalSnapshotChangeEventSource.RelationalSnapshotContext ctx)
                               throws Exception

Specified by:

getAllTableIds in class RelationalSnapshotChangeEventSource

Throws:

Exception

lockTablesForSchemaSnapshot

protected void lockTablesForSchemaSnapshot(ChangeEventSource.ChangeEventSourceContext sourceContext,
                                           RelationalSnapshotChangeEventSource.RelationalSnapshotContext snapshotContext)
                                    throws SQLException,
                                           InterruptedException

Specified by:

lockTablesForSchemaSnapshot in class RelationalSnapshotChangeEventSource

Throws:

SQLException

InterruptedException

releaseSchemaSnapshotLocks

protected void releaseSchemaSnapshotLocks(RelationalSnapshotChangeEventSource.RelationalSnapshotContext snapshotContext)
                                   throws SQLException

Specified by:

releaseSchemaSnapshotLocks in class RelationalSnapshotChangeEventSource

Throws:

SQLException

determineSnapshotOffset

protected void determineSnapshotOffset(RelationalSnapshotChangeEventSource.RelationalSnapshotContext ctx)
                                throws Exception

Specified by:

determineSnapshotOffset in class RelationalSnapshotChangeEventSource

Throws:

Exception

getCurrentScn

private Scn getCurrentScn(AbstractSnapshotChangeEventSource.SnapshotContext ctx)
                   throws SQLException

Throws:

SQLException

areSameTimestamp

private boolean areSameTimestamp(Scn scn1,
                                 Scn scn2)
                          throws SQLException

Whether the two SCNs represent the same timestamp or not (resolution is only 3 seconds).

Throws:

SQLException

getLatestTableDdlScn

private Optional<Scn> getLatestTableDdlScn(RelationalSnapshotChangeEventSource.RelationalSnapshotContext ctx)
                                    throws SQLException

Returns the SCN of the latest DDL change to the captured tables. The result will be empty if there's no table to capture as per the configuration.

Throws:

SQLException

readTableStructure

protected void readTableStructure(ChangeEventSource.ChangeEventSourceContext sourceContext,
                                  RelationalSnapshotChangeEventSource.RelationalSnapshotContext snapshotContext)
                           throws SQLException,
                                  InterruptedException

Specified by:

readTableStructure in class RelationalSnapshotChangeEventSource

Throws:

SQLException

InterruptedException

enhanceOverriddenSelect

protected String enhanceOverriddenSelect(RelationalSnapshotChangeEventSource.RelationalSnapshotContext snapshotContext,
                                         String overriddenSelect,
                                         TableId tableId)

Overrides:

enhanceOverriddenSelect in class RelationalSnapshotChangeEventSource

getCreateTableEvent

protected SchemaChangeEvent getCreateTableEvent(RelationalSnapshotChangeEventSource.RelationalSnapshotContext snapshotContext,
                                                Table table)
                                         throws SQLException

Specified by:

getCreateTableEvent in class RelationalSnapshotChangeEventSource

Throws:

SQLException

getSnapshotSelect

protected Optional<String> getSnapshotSelect(RelationalSnapshotChangeEventSource.RelationalSnapshotContext snapshotContext,
                                             TableId tableId)

Specified by:

getSnapshotSelect in class RelationalSnapshotChangeEventSource

complete

protected void complete(AbstractSnapshotChangeEventSource.SnapshotContext snapshotContext)

Overrides:

complete in class AbstractSnapshotChangeEventSource

quote

private static String quote(TableId tableId)