org.apache.flink.table.runtime.operators.wmassigners

类 PeriodicWatermarkAssignerWrapper

java.lang.Object

org.apache.flink.table.runtime.operators.wmassigners.PeriodicWatermarkAssignerWrapper

所有已实现的接口:

Serializable, org.apache.flink.api.common.eventtime.TimestampAssigner<org.apache.flink.table.data.RowData>, org.apache.flink.api.common.functions.Function, org.apache.flink.streaming.api.functions.AssignerWithPeriodicWatermarks<org.apache.flink.table.data.RowData>

@Internal
public class PeriodicWatermarkAssignerWrapper
extends Object
implements org.apache.flink.streaming.api.functions.AssignerWithPeriodicWatermarks<org.apache.flink.table.data.RowData>

Generates periodic watermarks based on a PeriodicWatermarkAssigner.

另请参阅:

序列化表格

字段概要

从接口继承的字段 org.apache.flink.api.common.eventtime.TimestampAssigner

NO_TIMESTAMP

构造器概要

构造器

构造器和说明
PeriodicWatermarkAssignerWrapper(org.apache.flink.table.sources.wmstrategies.PeriodicWatermarkAssigner assigner, int timeFieldIdx)

方法概要

限定符和类型	方法和说明
long	extractTimestamp(org.apache.flink.table.data.RowData row, long recordTimestamp)
org.apache.flink.streaming.api.watermark.Watermark	getCurrentWatermark()

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

PeriodicWatermarkAssignerWrapper

public PeriodicWatermarkAssignerWrapper(org.apache.flink.table.sources.wmstrategies.PeriodicWatermarkAssigner assigner,
                                        int timeFieldIdx)

参数:

timeFieldIdx - the index of the rowtime attribute.

assigner - the watermark assigner.

方法详细资料

getCurrentWatermark

@Nullable
public org.apache.flink.streaming.api.watermark.Watermark getCurrentWatermark()

指定者:

getCurrentWatermark 在接口中 org.apache.flink.streaming.api.functions.AssignerWithPeriodicWatermarks<org.apache.flink.table.data.RowData>

extractTimestamp

public long extractTimestamp(org.apache.flink.table.data.RowData row,
                             long recordTimestamp)

指定者:

extractTimestamp 在接口中 org.apache.flink.api.common.eventtime.TimestampAssigner<org.apache.flink.table.data.RowData>