org.apache.nifi.cdc.mysql.event.io

Class UpdateRowsWriter

java.lang.Object

org.apache.nifi.cdc.event.io.AbstractEventWriter<T>

org.apache.nifi.cdc.mysql.event.io.AbstractBinlogEventWriter<T>

org.apache.nifi.cdc.mysql.event.io.AbstractBinlogTableEventWriter<UpdateRowsEventInfo>

org.apache.nifi.cdc.mysql.event.io.UpdateRowsWriter

All Implemented Interfaces:

EventWriter<UpdateRowsEventInfo>

public class UpdateRowsWriter
extends AbstractBinlogTableEventWriter<UpdateRowsEventInfo>

A writer class to output MySQL binlog "write rows" (aka INSERT) events to flow file(s).

Field Summary

Fields inherited from class org.apache.nifi.cdc.event.io.AbstractEventWriter

jsonGenerator

Fields inherited from interface org.apache.nifi.cdc.event.io.EventWriter

APPLICATION_JSON, CDC_EVENT_TYPE_ATTRIBUTE, SEQUENCE_ID_KEY

Constructor Summary

Constructors

Constructor and Description
UpdateRowsWriter()

Method Summary

Modifier and Type	Method and Description
long	writeEvent(ProcessSession session, String transitUri, UpdateRowsEventInfo eventInfo, long currentSequenceId, Relationship relationship) Creates and transfers a new flow file whose contents are the JSON-serialized value of the specified event, and the sequence ID attribute set
protected void	writeRow(UpdateRowsEventInfo event, Map.Entry<Serializable[],Serializable[]> row, BitSet includedColumns)

Methods inherited from class org.apache.nifi.cdc.mysql.event.io.AbstractBinlogTableEventWriter

writeJson

Methods inherited from class org.apache.nifi.cdc.mysql.event.io.AbstractBinlogEventWriter

getCommonAttributes

Methods inherited from class org.apache.nifi.cdc.event.io.AbstractEventWriter

endJson, startJson

Methods inherited from class java.lang.Object

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

Constructor Detail

UpdateRowsWriter

public UpdateRowsWriter()

Method Detail

writeEvent

public long writeEvent(ProcessSession session,
                       String transitUri,
                       UpdateRowsEventInfo eventInfo,
                       long currentSequenceId,
                       Relationship relationship)

Creates and transfers a new flow file whose contents are the JSON-serialized value of the specified event, and the sequence ID attribute set

Specified by:

writeEvent in interface EventWriter<UpdateRowsEventInfo>

Overrides:

writeEvent in class AbstractBinlogTableEventWriter<UpdateRowsEventInfo>

Parameters:

session - A reference to a ProcessSession from which the flow file(s) will be created and transferred

eventInfo - An event whose value will become the contents of the flow file

Returns:

The next available CDC sequence ID for use by the CDC processor

writeRow

protected void writeRow(UpdateRowsEventInfo event,
                        Map.Entry<Serializable[],Serializable[]> row,
                        BitSet includedColumns)
                 throws IOException

Throws:

IOException