Package com.graphs.utils.graph

Class GraphProducer<T>

java.lang.Object

com.graphs.utils.graph.GraphProducer<T>

Type Parameters:

T - the bounding type stored in given graphs.

public class GraphProducer<T>
extends Object

This utility class produce instances of Graph.

Since:

2.0

Version:

JDK 1.7

Author:

Łukasz Malara

Field Summary

Fields

Modifier and Type	Field	Description
private static final List<String>	AVAILABLE_FILES	This field stores names of available files in FileFinder.RESOURCES_PATH directory.
private final GraphPrinter<T>	graphPrinter	This field stores instance of GraphPrinter

Constructor Summary

Constructors

Constructor	Description
GraphProducer()

Method Summary

Modifier and Type	Method	Description
Graph<T>	newCompleteGraph(int startIndex, int size)	This method returns a complete graph and prints feedback message.
Graph<T>	newEmptyGraph()	This method returns an empty graph and prints feedback message.
Optional<Graph<T>>	newGraphFromFile(String file)	This method returns an optional graph based on a structure defined in a file given as a parameter.

Methods inherited from class java.lang.Object

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

Field Details

graphPrinter

private final GraphPrinter<T> graphPrinter

This field stores instance of GraphPrinter

Since:

2.0

AVAILABLE_FILES

private static final List<String> AVAILABLE_FILES

This field stores names of available files in FileFinder.RESOURCES_PATH directory.

Since:

1.0

Constructor Details

GraphProducer

public GraphProducer()

Method Details

newGraphFromFile

public Optional<Graph<T>> newGraphFromFile(String file)
                                    throws NegativeVertexIndexException

This method returns an optional graph based on a structure defined in a file given as a parameter.

Parameters:

file - name of a file containing graph structure definition.

Returns:

optional of graph

Throws:

NegativeVertexIndexException - if file contains negative number(s).

Since:

1.0

newEmptyGraph

public Graph<T> newEmptyGraph()

This method returns an empty graph and prints feedback message.

Returns:

empty graph

Since:

1.0

newCompleteGraph

public Graph<T> newCompleteGraph(int startIndex,
 int size)

This method returns a complete graph and prints feedback message.

Parameters:

startIndex - least index of vertex in returned graph

size - size of returned graph

Returns:

complete graph

Since:

1.0