Class UnknownOperation

  • All Implemented Interfaces:

    public class UnknownOperation
    extends Object
    implements Operation
    An operation that is unknown to the current OpenRefine instance, but might be interpretable by another instance (for instance, a later version of OpenRefine, or using an extension). This class holds the JSON serialization of the operation, in the interest of being able to serialize it later, hence avoiding to discard it and lose metadata.
    • Constructor Detail

      • UnknownOperation

        public UnknownOperation​(String opCode,
                                String description)
    • Method Detail

      • setAttribute

        public void setAttribute​(String key,
                                 Object value)
      • 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
      • 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