edu.uci.ics.jung.graph

Interface Tree<V,E>

All Superinterfaces:

DirectedGraph<V,E>, Forest<V,E>, Graph<V,E>, Hypergraph<V,E>

All Known Implementing Classes:

DelegateTree, OrderedKAryTree

public interface Tree<V,E>
extends Forest<V,E>

A subtype of Graph which is a (directed, rooted) tree. What we refer to as a "tree" here is actually (in the terminology of graph theory) a rooted tree. (That is, there is a designated single vertex--the root--from which we measure the shortest path to each vertex, which we call its depth; the maximum over all such depths is the tree's height. Note that for a tree, there is exactly one unique path from the root to any vertex.)

Method Summary

Modifier and Type	Method and Description
int	getDepth(V vertex) Returns the (unweighted) distance of vertex from the root of this tree.
int	getHeight() Returns the maximum depth in this tree.
V	getRoot() Returns the root of this tree.

Methods inherited from interface edu.uci.ics.jung.graph.Forest

getChildCount, getChildEdges, getChildren, getParent, getParentEdge, getTrees

Methods inherited from interface edu.uci.ics.jung.graph.Graph

addEdge, addEdge, getDest, getEndpoints, getInEdges, getOpposite, getOutEdges, getPredecessorCount, getPredecessors, getSource, getSuccessorCount, getSuccessors, inDegree, isDest, isPredecessor, isSource, isSuccessor, outDegree

Methods inherited from interface edu.uci.ics.jung.graph.Hypergraph

addEdgeWithVertices, addEdgeWithVertices, addVertex, containsEdge, containsVertex, degree, findEdge, findEdgeSet, getDefaultEdgeType, getEdgeCount, getEdgeCount, getEdges, getEdgesView, getEdgeType, getIncidentCount, getIncidentEdges, getIncidentVertices, getNeighborCount, getNeighbors, getVertexCount, getVerticesView, isIncident, isNeighbor, removeEdge, removeVertex

Method Detail

getDepth

int getDepth(V vertex)

Returns the (unweighted) distance of vertex from the root of this tree.

Parameters:

vertex - the vertex whose depth is to be returned.

Returns:

the length of the shortest unweighted path from vertex to the root of this tree

See Also:

getHeight()

getHeight

int getHeight()

Returns the maximum depth in this tree.

Returns:

the maximum depth in this tree

See Also:

getDepth(Object)

getRoot

V getRoot()

Returns the root of this tree. The root is defined to be the vertex (designated either at the tree's creation time, or as the first vertex to be added) with respect to which vertex depth is measured.

Returns:

the root of this tree