Package org.apache.flink.table.runtime.operators.sink

Class ConstraintEnforcer

java.lang.Object
org.apache.flink.streaming.api.operators.AbstractStreamOperator<OUT>
org.apache.flink.table.runtime.operators.TableStreamOperator<org.apache.flink.table.data.RowData>
org.apache.flink.table.runtime.operators.sink.ConstraintEnforcer
All Implemented Interfaces:
Serializable, org.apache.flink.api.common.state.CheckpointListener, org.apache.flink.streaming.api.operators.Input<org.apache.flink.table.data.RowData>, org.apache.flink.streaming.api.operators.KeyContext, org.apache.flink.streaming.api.operators.KeyContextHandler, org.apache.flink.streaming.api.operators.OneInputStreamOperator<org.apache.flink.table.data.RowData,org.apache.flink.table.data.RowData>, org.apache.flink.streaming.api.operators.StreamOperator<org.apache.flink.table.data.RowData>, org.apache.flink.streaming.api.operators.StreamOperatorStateHandler.CheckpointedStreamOperator, org.apache.flink.streaming.api.operators.YieldingOperator<org.apache.flink.table.data.RowData>
@Internal public class ConstraintEnforcer extends TableStreamOperator<org.apache.flink.table.data.RowData> implements org.apache.flink.streaming.api.operators.OneInputStreamOperator<org.apache.flink.table.data.RowData,org.apache.flink.table.data.RowData>
Processes RowData to enforce the following constraints:
  • NOT NULL column constraint of a sink table
  • CHAR(length)/@{code VARCHAR(length)}: trim string values to comply with the length defined in their corresponding types.
See Also:

  • Nested Class Summary

    Nested Classes
    Modifier and Type
    Class
    Description
    static class 
    ConstraintEnforcer.Builder
    Helper builder, so that the ConstraintEnforcer can be instantiated with only the NOT NULL constraint validation, only the CHAR/VARCHAR length validation, only the BINARY/VARBINARY length validation or combinations of them, or all of them.
    static class 
    ConstraintEnforcer.FieldInfo
    Helper POJO to keep info about CHAR/VARCHAR/BINARY/VARBINARY fields, used to determine if trimming or padding is needed.

    Nested classes/interfaces inherited from class org.apache.flink.table.runtime.operators.TableStreamOperator

    TableStreamOperator.ContextImpl

  • Field Summary

    Fields inherited from class org.apache.flink.table.runtime.operators.TableStreamOperator

    ctx, currentWatermark

    Fields inherited from class org.apache.flink.streaming.api.operators.AbstractStreamOperator

    combinedWatermark, config, lastRecordAttributes1, lastRecordAttributes2, latencyStats, LOG, metrics, output, processingTimeService, stateHandler, stateKeySelector1, stateKeySelector2, timeServiceManager

  • Method Summary

    Modifier and Type
    Method
    Description
    String
    getOperatorName()
     
    static ConstraintEnforcer.Builder
    newBuilder()
     
    void
    open()
     
    void
    processElement(org.apache.flink.streaming.runtime.streamrecord.StreamRecord<org.apache.flink.table.data.RowData> element)
     

    Methods inherited from class org.apache.flink.table.runtime.operators.TableStreamOperator

    computeMemorySize, processWatermark, useSplittableTimers

    Methods inherited from class org.apache.flink.streaming.api.operators.AbstractStreamOperator

    beforeInitializeStateHandler, close, finish, getContainingTask, getCurrentKey, getExecutionConfig, getInternalTimerService, getKeyedStateBackend, getKeyedStateStore, getMetricGroup, getOperatorConfig, getOperatorID, getOperatorStateBackend, getOrCreateKeyedState, getPartitionedState, getPartitionedState, getProcessingTimeService, getRuntimeContext, getStateKeySelector1, getStateKeySelector2, getTimeServiceManager, getUserCodeClassloader, hasKeyContext1, hasKeyContext2, initializeState, initializeState, isAsyncStateProcessingEnabled, isUsingCustomRawKeyedState, notifyCheckpointAborted, notifyCheckpointComplete, prepareSnapshotPreBarrier, processLatencyMarker, processLatencyMarker1, processLatencyMarker2, processRecordAttributes, processRecordAttributes1, processRecordAttributes2, processWatermark, processWatermark1, processWatermark1, processWatermark2, processWatermark2, processWatermarkStatus, processWatermarkStatus, processWatermarkStatus1, processWatermarkStatus2, reportOrForwardLatencyMarker, setCurrentKey, setKeyContextElement1, setKeyContextElement2, setMailboxExecutor, setProcessingTimeService, setup, snapshotState, snapshotState

    Methods inherited from class java.lang.Object

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

    Methods inherited from interface org.apache.flink.api.common.state.CheckpointListener

    notifyCheckpointAborted, notifyCheckpointComplete

    Methods inherited from interface org.apache.flink.streaming.api.operators.Input

    processLatencyMarker, processRecordAttributes, processWatermark, processWatermark, processWatermarkStatus

    Methods inherited from interface org.apache.flink.streaming.api.operators.KeyContext

    getCurrentKey, setCurrentKey

    Methods inherited from interface org.apache.flink.streaming.api.operators.KeyContextHandler

    hasKeyContext

    Methods inherited from interface org.apache.flink.streaming.api.operators.OneInputStreamOperator

    setKeyContextElement

    Methods inherited from interface org.apache.flink.streaming.api.operators.StreamOperator

    close, finish, getMetricGroup, getOperatorAttributes, getOperatorID, initializeState, prepareSnapshotPreBarrier, setKeyContextElement1, setKeyContextElement2, snapshotState

  • Method Details

    • getOperatorName

      public String getOperatorName()
      Overrides:
      getOperatorName in class org.apache.flink.streaming.api.operators.AbstractStreamOperator<org.apache.flink.table.data.RowData>

    • open

      public void open() throws Exception
      Specified by:
      open in interface org.apache.flink.streaming.api.operators.StreamOperator<org.apache.flink.table.data.RowData>
      Overrides:
      open in class TableStreamOperator<org.apache.flink.table.data.RowData>
      Throws:
      Exception

    • newBuilder

      public static ConstraintEnforcer.Builder newBuilder()

    • processElement

      public void processElement(org.apache.flink.streaming.runtime.streamrecord.StreamRecord<org.apache.flink.table.data.RowData> element) throws Exception
      Specified by:
      processElement in interface org.apache.flink.streaming.api.operators.Input<org.apache.flink.table.data.RowData>
      Throws:
      Exception