Class TransposeRowsIntoColumnsOperation

  • All Implemented Interfaces:

    public class TransposeRowsIntoColumnsOperation
    extends Object
    implements Operation
    • Field Detail

      • _columnName

        protected final String _columnName
      • _rowCount

        protected final int _rowCount
    • Constructor Detail

      • TransposeRowsIntoColumnsOperation

        public TransposeRowsIntoColumnsOperation​(String columnName,
                                                 int rowCount)
    • Method Detail

      • apply

        public ChangeResult apply​(Grid projectState,
                                  ChangeContext context)
                           throws OperationException
        Description copied from interface: Operation
        Derives the new grid state from the current grid state. Executing this method should be quick (even on large datasets) since it is expected to just derive the new grid from the existing one without actually executing any expensive computation. Long-running computations should rather go in the derivation of a ChangeData which will be fetched asynchronously.
        Specified by:
        apply in interface Operation
        projectState - the state of the grid before the change
        an object which bundles up various pieces of information produced by the operation: primarily, the new grid after applying the operation. This object can be subclassed to expose more information, which should be serializable with Jackson so that it reaches the frontend.
        OperationException - when the change cannot be applied to the given grid
      • getRowCount

        public int getRowCount()
      • getColumnName

        public String getColumnName()
      • getDescription

        public String getDescription()
        Description copied from interface: Operation
        A short human-readable description of what this operation does.
        Specified by:
        getDescription in interface Operation