DnDConstants (Java Platform SE 8 )
Keywords: java.awt.dnd.DnDConstants class
Date: 2026-03-29

java.awt.dnd

## Class DnDConstants

- java.lang.Object
- - java.awt.dnd.DnDConstants

-     public final class DnDConstants
      extends Object

  This class contains constant values representing the type of action(s) to be performed by a Drag and Drop operation.
  Since:
    1.2

- - ### Field Summary

    Fields
    Modifier and Type | Field and Description
    --- | ---
    `static int` | `ACTION_COPY` An `int` representing a "copy" action.
    `static int` | `ACTION_COPY_OR_MOVE` An `int` representing a "copy" or "move" action.
    `static int` | `ACTION_LINK` An `int` representing a "link" action.
    `static int` | `ACTION_MOVE` An `int` representing a "move" action.
    `static int` | `ACTION_NONE` An `int` representing no action.
    `static int` | `ACTION_REFERENCE` An `int` representing a "reference" action (synonym for ACTION_LINK).

  - ### Method Summary

    - ### Methods inherited from class java.lang.Object

      `clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

- - ### Field Detail

    - #### ACTION_NONE

          @Native
          public static final int ACTION_NONE

      An `int` representing no action.
      See Also:
        Constant Field Values

    - #### ACTION_COPY

          @Native
          public static final int ACTION_COPY

      An `int` representing a "copy" action.
      See Also:
        Constant Field Values

    - #### ACTION_MOVE

          @Native
          public static final int ACTION_MOVE

      An `int` representing a "move" action.
      See Also:
        Constant Field Values

    - #### ACTION_COPY_OR_MOVE

          @Native
          public static final int ACTION_COPY_OR_MOVE

      An `int` representing a "copy" or "move" action.
      See Also:
        Constant Field Values

    - #### ACTION_LINK

          @Native
          public static final int ACTION_LINK

      An `int` representing a "link" action. The link verb is found in many, if not all native DnD platforms, and the actual interpretation of LINK semantics is both platform and application dependent. Broadly speaking, the semantic is "do not copy, or move the operand, but create a reference to it". Defining the meaning of "reference" is where ambiguity is introduced. The verb is provided for completeness, but its use is not recommended for DnD operations between logically distinct applications where misinterpretation of the operations semantics could lead to confusing results for the user.
      See Also:
        Constant Field Values

    - #### ACTION_REFERENCE

          @Native
          public static final int ACTION_REFERENCE

      An `int` representing a "reference" action (synonym for ACTION_LINK).
      See Also:
        Constant Field Values

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