Package org.apache.iotdb.udf

Class UDTFExample

  • All Implemented Interfaces:
    org.apache.iotdb.udf.api.UDF, org.apache.iotdb.udf.api.UDTF
    public class UDTFExample
extends java.lang.Object
implements org.apache.iotdb.udf.api.UDTF
    This is an internal example of the UDTF implementation.

    • Constructor Summary

      Constructors 
      Constructor Description
      UDTFExample()  

    • 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

      • UDTFExample

        public UDTFExample()

    • Method Detail

      • validate

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

      • 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.io.IOException
        Specified by:
        transform in interface org.apache.iotdb.udf.api.UDTF
        Throws:
        java.io.IOException