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

类 TransformProjection

java.lang.Object

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

所有已实现的接口:

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.

另请参阅:

序列化表格

构造器概要

构造器

构造器和说明
TransformProjection(String projection)
TransformProjection(String projection, List<ProjectionColumn> projectionColumns)

方法概要

限定符和类型	方法和说明
String	getProjection()
List<ProjectionColumn>	getProjectionColumns()
boolean	isValid()
static Optional<TransformProjection>	of(String projection)
void	setProjectionColumns(List<ProjectionColumn> projectionColumns)

从类继承的方法 java.lang.Object

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

构造器详细资料

TransformProjection

public TransformProjection(String projection)

TransformProjection

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

方法详细资料

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)