org.apache.flink.cdc.runtime.operators.transform

Class TransformProjectionProcessor

java.lang.Object

org.apache.flink.cdc.runtime.operators.transform.TransformProjectionProcessor

public class TransformProjectionProcessor
extends Object

The processor of transform projection applies to process a row of filtering tables.

A transform projection processor contains:

• CreateTableEvent: add the user-defined computed columns into Schema.
• SchemaChangeEvent: update the columns of TransformProjection.
• DataChangeEvent: Fill data field to row in TransformSchemaOperator. Process the data column and the user-defined expression computed columns.

Constructor Summary

Constructors

Constructor and Description
TransformProjectionProcessor(TableInfo tableInfo, TableChangeInfo tableChangeInfo, TransformProjection transformProjection, String timezone)

Method Summary

Modifier and Type	Method and Description
boolean	hasTableChangeInfo()
boolean	hasTableInfo()
static TransformProjectionProcessor	of(TableChangeInfo tableChangeInfo, TransformProjection transformProjection)
static TransformProjectionProcessor	of(TableInfo tableInfo, TransformProjection transformProjection, String timezone)
static TransformProjectionProcessor	of(TransformProjection transformProjection)
org.apache.flink.cdc.common.event.CreateTableEvent	processCreateTableEvent(org.apache.flink.cdc.common.event.CreateTableEvent createTableEvent)
org.apache.flink.cdc.common.data.binary.BinaryRecordData	processData(org.apache.flink.cdc.common.data.binary.BinaryRecordData after, long epochTime)
org.apache.flink.cdc.common.data.binary.BinaryRecordData	processFillDataField(org.apache.flink.cdc.common.data.binary.BinaryRecordData data)
void	processSchemaChangeEvent(org.apache.flink.cdc.common.schema.Schema schema)

Methods inherited from class java.lang.Object

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

Constructor Detail

TransformProjectionProcessor

public TransformProjectionProcessor(TableInfo tableInfo,
                                    TableChangeInfo tableChangeInfo,
                                    TransformProjection transformProjection,
                                    String timezone)

Method Detail

hasTableChangeInfo

public boolean hasTableChangeInfo()

hasTableInfo

public boolean hasTableInfo()

of

public static TransformProjectionProcessor of(TableInfo tableInfo,
                                              TransformProjection transformProjection,
                                              String timezone)

of

public static TransformProjectionProcessor of(TableChangeInfo tableChangeInfo,
                                              TransformProjection transformProjection)

of

public static TransformProjectionProcessor of(TransformProjection transformProjection)

processCreateTableEvent

public org.apache.flink.cdc.common.event.CreateTableEvent processCreateTableEvent(org.apache.flink.cdc.common.event.CreateTableEvent createTableEvent)

processSchemaChangeEvent

public void processSchemaChangeEvent(org.apache.flink.cdc.common.schema.Schema schema)

processFillDataField

public org.apache.flink.cdc.common.data.binary.BinaryRecordData processFillDataField(org.apache.flink.cdc.common.data.binary.BinaryRecordData data)

processData

public org.apache.flink.cdc.common.data.binary.BinaryRecordData processData(org.apache.flink.cdc.common.data.binary.BinaryRecordData after,
                                                                            long epochTime)