Package de.swa.fuh.qrefinement.command

Class SelectQueryCommandHistory

java.lang.Object
de.swa.fuh.qrefinement.command.SelectQueryCommandHistory
public class SelectQueryCommandHistory
extends java.lang.Object
This class implements a command history for all commands that changed selection of an asset or produced a new query
Author:
Nicolas Boch

  • Method Summary

    Modifier and Type Method Description
    void add​(UndoableCommand command)  
    static SelectQueryCommandHistory getInstance()  
    Querying getLastQueryMetric()
    Get the metric that was used to execute the last query (for equivalent redoing of query execution)
    Querying getLastQueryMetricUndo()
    Get the metric that was used to execute the penultimate query (for equivalent undoing of the last query, implemented by a re-execution of the penultimate query)
    void redo()  
    void undo()  

    Methods inherited from class java.lang.Object

    equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

  • Method Details

    • getInstance

      public static SelectQueryCommandHistory getInstance()

    • add

      public void add​(UndoableCommand command)

    • redo

      public void redo()

    • undo

      public void undo()

    • getLastQueryMetric

      public Querying getLastQueryMetric()
      Get the metric that was used to execute the last query (for equivalent redoing of query execution)
      Returns:
      the metric that was used as described above

    • getLastQueryMetricUndo

      public Querying getLastQueryMetricUndo()
      Get the metric that was used to execute the penultimate query (for equivalent undoing of the last query, implemented by a re-execution of the penultimate query)
      Returns: