javatools.datatypes

Class Tree<T>

java.lang.Object

javatools.datatypes.Tree<T>

All Implemented Interfaces:

Iterable<T>, Visitable<Tree<T>>

public class Tree<T>
extends Object
implements Iterable<T>, Visitable<Tree<T>>

Copyright 2016 Fabian M. Suchanek Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. The class represents the simple datatype of a Tree.

Field Summary

Fields

Modifier and Type	Field and Description
protected List<Tree<T>>	children Holds the children
protected T	element Holds the node
protected Tree<T>	parent Points to the parent

Constructor Summary

Constructors

Constructor and Description
Tree() Constructs an empty tree with a null element
Tree(T element) Constructs a tree with a node element
Tree(T element, List<Tree<T>> children) Constructs a tree with a node element and children
Tree(Tree<T> parent, T element) Constructs a tree with a node element and a parent
Tree(Tree<T> parent, T element, List<Tree<T>> children) Constructs a tree with a node element and a parent

Method Summary

Modifier and Type	Method and Description
void	addChild(Tree<T> child) Adds a child
List<Tree<T>>	getChildren() Depth first search across the tree
T	getElement() Returns the element
Tree<T>	getParent() Returns the parent
Iterator<T>	iterator()
static void	main(String[] args)
boolean	receive(Visitor<Tree<T>> visitor) Receives a visitor for a depth first traversal
void	setChildren(List<Tree<T>> children) Sets the children
void	setElement(T element) Sets the element
void	setParent(Tree<T> parent) Sets the parent
String	toPrettyString() Prints a tree with visualization of its structure.
String	toString()

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Field Detail

children

protected List<Tree<T>> children

Holds the children

element

protected T element

Holds the node

parent

protected Tree<T> parent

Points to the parent

Constructor Detail

Tree

public Tree()

Constructs an empty tree with a null element

Tree

public Tree(T element)

Constructs a tree with a node element

Tree

public Tree(Tree<T> parent,
            T element)

Constructs a tree with a node element and a parent

Tree

public Tree(T element,
            List<Tree<T>> children)

Constructs a tree with a node element and children

Tree

public Tree(Tree<T> parent,
            T element,
            List<Tree<T>> children)

Constructs a tree with a node element and a parent

Method Detail

getParent

public Tree<T> getParent()

Returns the parent

setParent

public void setParent(Tree<T> parent)

Sets the parent

getChildren

public List<Tree<T>> getChildren()

Depth first search across the tree

setChildren

public void setChildren(List<Tree<T>> children)

Sets the children

addChild

public void addChild(Tree<T> child)

Adds a child

getElement

public T getElement()

Returns the element

setElement

public void setElement(T element)

Sets the element

iterator

public Iterator<T> iterator()

Specified by:

iterator in interface Iterable<T>

receive

public boolean receive(Visitor<Tree<T>> visitor)
                throws Exception

Receives a visitor for a depth first traversal

Specified by:

receive in interface Visitable<Tree<T>>

Throws:

Exception

toString

public String toString()

Overrides:

toString in class Object

toPrettyString

public String toPrettyString()

Prints a tree with visualization of its structure. Example: root +-root.0 | +-root.0.0 | +-root.0.1 +-root.1 +-root.1.0 +-root.1.1

main

public static void main(String[] args)