Package org.apache.iotdb.commons.udf.builtin

Class UDTFConst

  • All Implemented Interfaces:
    org.apache.iotdb.udf.api.UDF, org.apache.iotdb.udf.api.UDTF
    public class UDTFConst
extends java.lang.Object
implements org.apache.iotdb.udf.api.UDTF

    • Constructor Summary

      Constructors 
      Constructor Description
      UDTFConst()  

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      void beforeStart​(org.apache.iotdb.udf.api.customizer.parameter.UDFParameters parameters, org.apache.iotdb.udf.api.customizer.config.UDTFConfigurations configurations)  
      void transform​(org.apache.iotdb.udf.api.access.Row row, org.apache.iotdb.udf.api.collector.PointCollector collector)  
      void validate​(org.apache.iotdb.udf.api.customizer.parameter.UDFParameterValidator validator)  

      • Methods inherited from class java.lang.Object

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

      • Methods inherited from interface org.apache.iotdb.udf.api.UDF

        beforeDestroy

      • Methods inherited from interface org.apache.iotdb.udf.api.UDTF

        terminate, transform, transform

    • Constructor Detail

      • UDTFConst

        public UDTFConst()

    • Method Detail

      • validate

        public void validate​(org.apache.iotdb.udf.api.customizer.parameter.UDFParameterValidator validator)
              throws org.apache.iotdb.udf.api.exception.UDFParameterNotValidException
        Specified by:
        validate in interface org.apache.iotdb.udf.api.UDF
        Throws:
        org.apache.iotdb.udf.api.exception.UDFParameterNotValidException

      • beforeStart

        public void beforeStart​(org.apache.iotdb.udf.api.customizer.parameter.UDFParameters parameters,
                        org.apache.iotdb.udf.api.customizer.config.UDTFConfigurations configurations)
        Specified by:
        beforeStart in interface org.apache.iotdb.udf.api.UDTF

      • transform

        public void transform​(org.apache.iotdb.udf.api.access.Row row,
                      org.apache.iotdb.udf.api.collector.PointCollector collector)
               throws java.lang.Exception
        Specified by:
        transform in interface org.apache.iotdb.udf.api.UDTF
        Throws:
        java.lang.Exception