Package io.debezium.pipeline

Class AbstractChangeRecordEmitter<T extends DataCollectionSchema>

java.lang.Object

io.debezium.pipeline.AbstractChangeRecordEmitter<T>

All Implemented Interfaces:

ChangeRecordEmitter

Direct Known Subclasses:

RelationalChangeRecordEmitter

public abstract class AbstractChangeRecordEmitter<T extends DataCollectionSchema>
extends Object
implements ChangeRecordEmitter

An abstract implementation of ChangeRecordEmitter.

Author:

Chris Cranford

Nested Class Summary

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

ChangeRecordEmitter.Receiver

Field Summary

Fields

Modifier and Type	Field	Description
private Clock	clock
private OffsetContext	offsetContext

Constructor Summary

Constructors

Constructor	Description
AbstractChangeRecordEmitter(OffsetContext offsetContext, Clock clock)

Method Summary

Modifier and Type	Method	Description
void	emitChangeRecords(DataCollectionSchema schema, ChangeRecordEmitter.Receiver receiver)	Emits the change record(s) corresponding to data change represented by this emitter.
protected abstract void	emitCreateRecord(ChangeRecordEmitter.Receiver receiver, T schema)	Emits change record(s) associated with an insert operation.
protected abstract void	emitDeleteRecord(ChangeRecordEmitter.Receiver receiver, T schema)	Emits change record(s) associated with a delete operation.
protected abstract void	emitReadRecord(ChangeRecordEmitter.Receiver receiver, T schema)	Emits change record(s) associated with a snapshot.
protected abstract void	emitUpdateRecord(ChangeRecordEmitter.Receiver receiver, T schema)	Emits change record(s) associated with an update operation.
Clock	getClock()	Returns the clock of the change record(s) emitted.
OffsetContext	getOffset()	Returns the offset of the change record(s) emitted.
protected abstract Envelope.Operation	getOperation()	Returns the operation associated with the 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

AbstractChangeRecordEmitter

public AbstractChangeRecordEmitter(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

getClock

public Clock getClock()

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

getOperation

protected abstract Envelope.Operation getOperation()

Returns the operation associated with the change.

emitReadRecord

protected abstract void emitReadRecord(ChangeRecordEmitter.Receiver receiver,
                                       T schema)
                                throws InterruptedException

Emits change record(s) associated with a snapshot.

Parameters:

receiver - the handler for which the emitted record should be dispatched

schema - the schema

Throws:

InterruptedException

emitCreateRecord

protected abstract void emitCreateRecord(ChangeRecordEmitter.Receiver receiver,
                                         T schema)
                                  throws InterruptedException

Emits change record(s) associated with an insert operation.

Parameters:

receiver - the handler for which the emitted record should be dispatched

schema - the schema

Throws:

InterruptedException

emitUpdateRecord

protected abstract void emitUpdateRecord(ChangeRecordEmitter.Receiver receiver,
                                         T schema)
                                  throws InterruptedException

Emits change record(s) associated with an update operation.

Parameters:

receiver - the handler for which the emitted record should be dispatched

schema - the schema

Throws:

InterruptedException

emitDeleteRecord

protected abstract void emitDeleteRecord(ChangeRecordEmitter.Receiver receiver,
                                         T schema)
                                  throws InterruptedException

Emits change record(s) associated with a delete operation.

Parameters:

receiver - the handler for which the emitted record should be dispatched

schema - the schema

Throws:

InterruptedException