Class JoinMapper

java.lang.Object
uk.ac.starlink.ttools.task.JoinMapper
All Implemented Interfaces:
TableMapper

public class JoinMapper extends Object implements TableMapper
TableMapper which joins tables side-by-side. Rows are not rearranged.
Since:
28 Nov 2006
Author:
Mark Taylor
  • Constructor Details

    • JoinMapper

      public JoinMapper()
      Constructor.
  • Method Details

    • getParameters

      public uk.ac.starlink.task.Parameter<?>[] getParameters()
      Description copied from interface: TableMapper
      Returns the parameters defined by this mapper.
      Specified by:
      getParameters in interface TableMapper
      Returns:
      parameter array
    • createMapping

      public TableMapping createMapping(uk.ac.starlink.task.Environment env, int nin) throws uk.ac.starlink.task.TaskException
      Description copied from interface: TableMapper
      Creates a new mapping object, using a given execution environment for any additional required state.
      Specified by:
      createMapping in interface TableMapper
      Parameters:
      env - execution environment
      nin - number of input tables that the mapping will operate on if known; -1 if not
      Throws:
      uk.ac.starlink.task.TaskException