io.debezium.relational

Class RelationalChangeRecordEmitter

java.lang.Object

io.debezium.relational.RelationalChangeRecordEmitter

All Implemented Interfaces:

ChangeRecordEmitter

public abstract class RelationalChangeRecordEmitter
extends Object
implements ChangeRecordEmitter

Base class for ChangeRecordEmitter implementations based on a relational database.

Author:

Gunnar Morling

Nested Class Summary

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

ChangeRecordEmitter.Receiver

Field Summary

Fields

Modifier and Type	Field and Description
private Clock	clock
private OffsetContext	offsetContext

Constructor Summary

Constructors

Constructor and Description
RelationalChangeRecordEmitter(OffsetContext offsetContext, Clock clock)

Method Summary

Modifier and Type	Method and Description
void	emitChangeRecords(DataCollectionSchema schema, ChangeRecordEmitter.Receiver receiver) Emits the change record(s) corresponding to data change represented by this emitter.
private void	emitCreateRecord(ChangeRecordEmitter.Receiver receiver, TableSchema tableSchema)
private void	emitDeleteRecord(ChangeRecordEmitter.Receiver receiver, TableSchema tableSchema)
private void	emitReadRecord(ChangeRecordEmitter.Receiver receiver, TableSchema tableSchema)
private void	emitUpdateRecord(ChangeRecordEmitter.Receiver receiver, TableSchema tableSchema)
protected abstract Object[]	getNewColumnValues() Returns the new row state in case of a CREATE or READ.
OffsetContext	getOffset() Returns the offset of the change record(s) emitted.
protected abstract Object[]	getOldColumnValues() Returns the old row state in case of an UPDATE or DELETE.
protected abstract Envelope.Operation	getOperation() Returns the operation done by the represented change.

Methods inherited from class java.lang.Object

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

Field Detail

offsetContext

private final OffsetContext offsetContext

clock

private final Clock clock

Constructor Detail

RelationalChangeRecordEmitter

public RelationalChangeRecordEmitter(OffsetContext offsetContext,
                                     Clock clock)

Method Detail

emitChangeRecords

public void emitChangeRecords(DataCollectionSchema schema,
                              ChangeRecordEmitter.Receiver receiver)
                       throws InterruptedException

Description copied from interface: ChangeRecordEmitter

Emits the change record(s) corresponding to data change represented by this emitter.

Specified by:

emitChangeRecords in interface ChangeRecordEmitter

Throws:

InterruptedException

getOffset

public OffsetContext getOffset()

Description copied from interface: ChangeRecordEmitter

Returns the offset of the change record(s) emitted.

Specified by:

getOffset in interface ChangeRecordEmitter

emitCreateRecord

private void emitCreateRecord(ChangeRecordEmitter.Receiver receiver,
                              TableSchema tableSchema)
                       throws InterruptedException

Throws:

InterruptedException

emitReadRecord

private void emitReadRecord(ChangeRecordEmitter.Receiver receiver,
                            TableSchema tableSchema)
                     throws InterruptedException

Throws:

InterruptedException

emitUpdateRecord

private void emitUpdateRecord(ChangeRecordEmitter.Receiver receiver,
                              TableSchema tableSchema)
                       throws InterruptedException

Throws:

InterruptedException

emitDeleteRecord

private void emitDeleteRecord(ChangeRecordEmitter.Receiver receiver,
                              TableSchema tableSchema)
                       throws InterruptedException

Throws:

InterruptedException

getOperation

protected abstract Envelope.Operation getOperation()

Returns the operation done by the represented change.

getOldColumnValues

protected abstract Object[] getOldColumnValues()

Returns the old row state in case of an UPDATE or DELETE.

getNewColumnValues

protected abstract Object[] getNewColumnValues()

Returns the new row state in case of a CREATE or READ.