edu.uci.ics.jung.utils
Interface UserDataContainer.CopyAction

All Known Implementing Classes:

UserDataContainer.CopyAction.Clone, UserDataContainer.CopyAction.Remove, UserDataContainer.CopyAction.Shared

Enclosing interface:

UserDataContainer

public static interface UserDataContainer.CopyAction

Decides what to do when a user datum is copied. Some of the more common responses might include returning null, returning the object, or returning a clone of the object.

Author:

danyelf

Nested Class Summary

static class	UserDataContainer.CopyAction.Clone Implements UserData.CLONE
static class	UserDataContainer.CopyAction.Remove Implements UserData.REMOVE
static class	UserDataContainer.CopyAction.Shared Implements UserData.SHARED

Method Summary

java.lang.Object

onCopy(java.lang.Object value, UserDataContainer source, UserDataContainer target) The callback triggered when a UserDatum is copied.

Method Detail

onCopy

public java.lang.Object onCopy(java.lang.Object value,
                               UserDataContainer source,
                               UserDataContainer target)

The callback triggered when a UserDatum is copied. Implement this method to create your own CopyAction.

Parameters:

value - The item of UserData that is being copied

source - The UserDataContainer that holds this datum

target - The UserDataContainer that will hold the new datum

Returns:

Object The copy of the UserData