Interface SequenceValidator

    • Method Summary

      All Methods Instance Methods Abstract Methods 
      Modifier and Type Method Description
      int getInsertIndex​(Bean bean, java.util.List<Bean> beans)
      When a bean is inserted the first time at design-time, this method will be called to determine the insertion index.
      boolean isBarrier​(Bean movedBean, Bean possibleBarrierBean)
      When a bean is moved in the list of beans, this method is called to check whether the move is valid.
    • Method Detail

      • getInsertIndex

        int getInsertIndex​(Bean bean,
                           java.util.List<Bean> beans)
        When a bean is inserted the first time at design-time, this method will be called to determine the insertion index. If this method returns -1, the bean will be inserted in its default position. This method is not called for existing bean instances that are loaded from a project.
        Parameters:
        bean - the bean that is being inserted
        beans - the list of existing beans into which the bean is to be inserted
        Returns:
        the insertion index into the list
      • isBarrier

        boolean isBarrier​(Bean movedBean,
                          Bean possibleBarrierBean)
        When a bean is moved in the list of beans, this method is called to check whether the move is valid. This method is called symmetrically for both beans whose location is to be swapped. This means that the user might actually be moving the possibleBarrierBean instead of the movedBean.
        Parameters:
        movedBean - the bean that is being moved. This is always an instance of the bean with the BeanInfo class that contains this sequence validator.
        possibleBarrierBean - the other bean whose location is about to be swapped with the movedBean.
        Returns:
        whether the move is valid. If you return false an error message will be displayed by the install4j GUI.