com.lightdev.tree.data
Interface HierarchicalItem

public interface HierarchicalItem

HierarchicalItem.java

Classes wishing to be treated as part of a hierarchical data structure need to implement this interface

Version:

1, 01.08.2005

Author:

Ulrich Hilger, Light Development, http://www.lightdev.com, info@lightdev.com, published under the terms and conditions of the BSD License, for details see file license.txt in the distribution package of this software

Method Summary

Object	getData() get the data of this item
Object	getId() get the id of this item
Object	getParentId() get the id of the parent of this item
boolean	isRoot() determine if this item is a root item, i.e. has no parent items
void	setData(Object data) set the data of this item
void	setId(Object id) set the id of this item
void	setParentId(Object parentId) set the id of the parent of this item

Method Detail

setData

void setData(Object data)

set the data of this item

Parameters:

data - the item's data

getData

Object getData()

get the data of this item

Returns:

the data of this item

setId

void setId(Object id)

set the id of this item

Parameters:

id - the id of this item

getId

Object getId()

get the id of this item

Returns:

the id of this item

getParentId

Object getParentId()

get the id of the parent of this item

Returns:

the id of the parent of this item

setParentId

void setParentId(Object parentId)

set the id of the parent of this item

Parameters:

parentId - the parent id of this item

isRoot

boolean isRoot()

determine if this item is a root item, i.e. has no parent items

Returns:

true if this item is a root item, false otherwise