DnDConstants (Java SE 26 & JDK 26)
Description: declaration: module: java.desktop, package: java.awt.dnd, class: DnDConstants
Keywords: java.awt.dnd.DnDConstants class

# 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
  Description
  `static final int`
  `ACTION_COPY`
  An `int` representing a "copy" action.
  `static final int`
  `ACTION_COPY_OR_MOVE`
  An `int` representing a "copy" or "move" action.
  `static final int`
  `ACTION_LINK`
  An `int` representing a "link" action.
  `static final int`
  `ACTION_MOVE`
  An `int` representing a "move" action.
  `static final int`
  `ACTION_NONE`
  An `int` representing no action.
  `static final int`
  `ACTION_REFERENCE`
  An `int` representing a "reference" action (synonym for ACTION_LINK).

- ## Method Summary

  ### Methods declared in class Object

  `clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`
  Modifier and Type
  Method
  Description
  `protected Object`
  `clone()`
  Creates and returns a copy of this object.
  `boolean`
  `equals(Object obj)`
  Indicates whether some other object is "equal to" this one.
  `protected void`
  `finalize()`
  Deprecated, for removal: This API element is subject to removal in a future version.
  Finalization is deprecated and subject to removal in a future release.
  `final Class<?>`
  `getClass()`
  Returns the runtime class of this `Object`.
  `int`
  `hashCode()`
  Returns a hash code value for this object.
  `final void`
  `notify()`
  Wakes up a single thread that is waiting on this object's monitor.
  `final void`
  `notifyAll()`
  Wakes up all threads that are waiting on this object's monitor.
  `String`
  `toString()`
  Returns a string representation of the object.
  `final void`
  `wait()`
  Causes the current thread to wait until it is awakened, typically by being notified or interrupted.
  `final void`
  `wait(long timeoutMillis)`
  Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.
  `final void`
  `wait(long timeoutMillis, int nanos)`
  Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.

- ## Field Details

  - ### 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