Package eu.mihosoft.vmf.runtime.core

Interface Change

All Known Subinterfaces:
ChangeInternal
public interface Change
A model change.

  • Nested Class Summary

    Nested Classes 
    Modifier and Type Interface Description
    static class  Change.ChangeType
    Change Type

  • Method Summary

    Modifier and Type Method Description
    void apply​(VObject obj)
    Applies this change to the specified object.
    long getTimestamp()
    Returns the timestamp (in nano seconds) which denotes the creation of this change.
    Change.ChangeType getType()
    Returns the type of this change.
    boolean isUndoable()
    Indicates whether this change can be reverted.
    default java.util.Optional<eu.mihosoft.vcollections.VListChangeEvent<java.lang.Object>> listChange()
    Returns the list change (optional) which exists if this change affects a list (list elements added, removed, etc.).
    VObject object()
    Returns the object affected by this change
    default java.util.Optional<PropertyChange> propertyChange()
    Returns the property change (optional) which exists if this change affects a single property.
    java.lang.String propertyName()
    Returns the name of the property affected by this change.
    void undo()
    Performs an undo operation (if possible).

  • Method Details

    • object

      VObject object()
      Returns the object affected by this change
      Returns:
      the object affected by this change

    • propertyName

      java.lang.String propertyName()
      Returns the name of the property affected by this change.
      Returns:
      the name of the property affected by this change

    • undo

      void undo()
      Performs an undo operation (if possible).

    • apply

      void apply​(VObject obj)
      Applies this change to the specified object.
      Parameters:
      obj - target object affected by this change

    • isUndoable

      boolean isUndoable()
      Indicates whether this change can be reverted.
      Returns:
      true if this change can be reverted; false otherwise

    • propertyChange

      default java.util.Optional<PropertyChange> propertyChange()
      Returns the property change (optional) which exists if this change affects a single property.
      Returns:
      the property change (optional)

    • listChange

      default java.util.Optional<eu.mihosoft.vcollections.VListChangeEvent<java.lang.Object>> listChange()
      Returns the list change (optional) which exists if this change affects a list (list elements added, removed, etc.).
      Returns:
      the list change (optional)

    • getType

      Change.ChangeType getType()
      Returns the type of this change.
      Returns:
      the type of this change

    • getTimestamp

      long getTimestamp()
      Returns the timestamp (in nano seconds) which denotes the creation of this change.
      Returns:
      the timestamp (in nano seconds) which denotes the creation of this change