Class ArrayJoin

  • All Implemented Interfaces:
    uk.ac.starlink.task.Task

    public class ArrayJoin
    extends SingleMapperTask
    Task to add the contents of an external table for each row of an input table as array-valued columns.
    Since:
    17 Jun 2022
    Author:
    Mark Taylor
    • Constructor Detail

      • ArrayJoin

        public ArrayJoin()
        Constructor.
    • Method Detail

      • getParameters

        public uk.ac.starlink.task.Parameter<?>[] getParameters()
        Specified by:
        getParameters in interface uk.ac.starlink.task.Task
        Overrides:
        getParameters in class ConsumerTask
      • createProducer

        public TableProducer createProducer​(uk.ac.starlink.task.Environment env)
                                     throws uk.ac.starlink.task.TaskException
        Description copied from class: ConsumerTask
        Returns an object which can produce the effective output table which will be consumed by this task. The table produced by the resulting producer can be fed to the ConsumerTask.getIdentity(uk.ac.starlink.table.StarTable) method.
        Specified by:
        createProducer in class ConsumerTask
        Parameters:
        env - execution environment
        Returns:
        table producer
        Throws:
        uk.ac.starlink.task.TaskException