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

Class TransformProjection

java.lang.Object

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

All Implemented Interfaces:

Serializable

public class TransformProjection
extends Object
implements Serializable

The projection of transform applies to describe a projection of filtering tables. Projection includes the original columns of the data table and the user-defined computed columns.

A transformation projection contains:

• projection: a string for projecting the row of matched table as output.
• projectionColumns: a list for recording all columns transformation of the projection.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
TransformProjection(String projection, List<ProjectionColumn> projectionColumns)

Method Summary

Modifier and Type	Method and Description
List<org.apache.flink.cdc.common.schema.Column>	getAllColumnList()
String	getProjection()
List<ProjectionColumn>	getProjectionColumns()
boolean	isValid()
static Optional<TransformProjection>	of(String projection)
void	setProjectionColumns(List<ProjectionColumn> projectionColumns)

Methods inherited from class java.lang.Object

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

Constructor Detail

TransformProjection

public TransformProjection(String projection,
                           List<ProjectionColumn> projectionColumns)

Method Detail

getProjection

public String getProjection()

getProjectionColumns

public List<ProjectionColumn> getProjectionColumns()

setProjectionColumns

public void setProjectionColumns(List<ProjectionColumn> projectionColumns)

isValid

public boolean isValid()

of

public static Optional<TransformProjection> of(String projection)

getAllColumnList

public List<org.apache.flink.cdc.common.schema.Column> getAllColumnList()