Package org.zkoss.zul.ext

Interface Openable<E>

    • Method Summary

      All Methods Instance Methods Abstract Methods 
      Modifier and Type Method Description
      boolean addOpenObject​(E obj)
      Add the specified object into the collection of opened objects.
      void clearOpen()
      Clear all open status.
      java.util.Set<E> getOpenObjects()
      Returns the objects that are opened.
      boolean isObjectOpened​(java.lang.Object obj)
      Returns whether the specified object be opened.
      boolean isOpenEmpty()
      Returns true if the open is currently empty.
      boolean removeOpenObject​(java.lang.Object obj)
      Remove the specified object from selection.
      void setOpenObjects​(java.util.Collection<? extends E> opens)
      Replace the current set of opened objects with the given set.

    • Method Detail

      • getOpenObjects

        java.util.Set<E> getOpenObjects()
        Returns the objects that are opened. It is readonly. Don't modify it directly
        Since:
        6.0.0

      • setOpenObjects

        void setOpenObjects​(java.util.Collection<? extends E> opens)
        Replace the current set of opened objects with the given set.
        Since:
        6.0.0

      • isObjectOpened

        boolean isObjectOpened​(java.lang.Object obj)
        Returns whether the specified object be opened.
        Parameters:
        obj -

      • isOpenEmpty

        boolean isOpenEmpty()
        Returns true if the open is currently empty.
        Since:
        6.0.0

      • addOpenObject

        boolean addOpenObject​(E obj)
        Add the specified object into the collection of opened objects.
        Parameters:
        obj - the object to be as selection.
        Returns:
        true if it is added successfully; false if obj is not part of the data, or was already opened.
        Since:
        6.0.0

      • removeOpenObject

        boolean removeOpenObject​(java.lang.Object obj)
        Remove the specified object from selection.
        Parameters:
        obj - the object to be remove from selection.
        Returns:
        whether it is removed successfully
        Since:
        6.0.0

      • clearOpen

        void clearOpen()
        Clear all open status.

        Notice that this method is designed to be called by a component (such as Tree). If it is called by an application, the component's open status won't be changed.