com.tssap.util.ui.reuse.tree
Interface IAddRemoveCallback

All Known Subinterfaces:

ITreeSelectorCallback

public interface IAddRemoveCallback

Method Summary

java.lang.Object	addElement(java.lang.Object currentSelection) Performs the adding of the new element at the given position.
boolean	canAddElement(java.lang.Object currentSelection) Answers if the implementation is able to a add a new Element at the given position.
boolean	canRemoveElement(java.lang.Object currentSelection) Answers if the implementation is able to remove the given Object from the model
boolean	removeElement(java.lang.Object currentSelection) Performs removing of the given Element from the model It's garanteed that @see #canRemoveElement(Object) returned true.

Method Detail

canAddElement

public boolean canAddElement(java.lang.Object currentSelection)

Answers if the implementation is able to a add a new Element at the given position.

Parameters:

currentSelection - a Object discribing the position in the tree sturcture where an "Add Element" is requested

Returns:

if the implementation is able to a add a new Element at the given position.

See Also:

addElement(Object)

addElement

public java.lang.Object addElement(java.lang.Object currentSelection)

Performs the adding of the new element at the given position. It's garanteed that @see #canAddElement(Object) returned true. The implementation is free to add the new Element as a child or a sibling of the current position

Parameters:

currentSelection - a Object discribing the position in the tree sturcture where an "Add Element" is requested

Returns:

the new Element added to the model. May be null when creation fails.

canRemoveElement

public boolean canRemoveElement(java.lang.Object currentSelection)

Answers if the implementation is able to remove the given Object from the model

Parameters:

currentSelection - the Object to remove

Returns:

if the implementation is able to remove the given Object from the model

removeElement

public boolean removeElement(java.lang.Object currentSelection)

Performs removing of the given Element from the model It's garanteed that @see #canRemoveElement(Object) returned true.

Parameters:

currentSelection - the Object to remove from the model

Returns:

whether the Object was removed succesfully