ee.telekom.workflow.graph.core

Class GraphImpl

java.lang.Object

ee.telekom.workflow.graph.core.GraphImpl

All Implemented Interfaces:

Graph

public class GraphImpl
extends Object
implements Graph

Constructor Summary

Constructors

Constructor and Description
GraphImpl(String name, int version)
GraphImpl(String name, int version, boolean keepHistory)

Method Summary

Modifier and Type	Method and Description
void	addNode(Node node)
void	addTransition(Transition transition)
boolean	getKeepHistory()
String	getName() Returns the graph's name, which should be unique.
Node	getNode(int id) Returns the graph's node with the given id.
Collection<Node>	getNodes() Returns the list of all nodes in the graph.
List<Transition>	getOutputTransitions(Node node) Returns a list of transitions which have the given node as their starting point.
Transition	getOutputTransitions(Node node, String name) Returns the transition which has the given node as their starting point and the given name, or null if no such transition exists.
Node	getStartNode() Returns the graph's start node.
List<Transition>	getTransitions() Returns the list of all transitions in the graph.
int	getVersion() Returns the version number of the graph.
void	setStartNode(Node startNode)

Methods inherited from class java.lang.Object

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

Constructor Detail

GraphImpl

public GraphImpl(String name,
                 int version)

GraphImpl

public GraphImpl(String name,
                 int version,
                 boolean keepHistory)

Method Detail

getName

public String getName()

Description copied from interface: Graph

Returns the graph's name, which should be unique. Different versions with the same name may exist, but each of them should have a unique version number.

Specified by:

getName in interface Graph

Returns:

the graph's name

getVersion

public int getVersion()

Description copied from interface: Graph

Returns the version number of the graph. Different versions of a graph may exists. Newer versions of the graph should have higher version numbers than older versions. A graph can be uniquely identified by name and version number.

Specified by:

getVersion in interface Graph

Returns:

the graph's version

getKeepHistory

public boolean getKeepHistory()

Specified by:

getKeepHistory in interface Graph

getStartNode

public Node getStartNode()

Description copied from interface: Graph

Returns the graph's start node. The start node is the node where to start execution when creating a new GraphInstance. A non-empty graph must define a start node.

Specified by:

getStartNode in interface Graph

Returns:

the node at which to start a workflow instance

getNode

public Node getNode(int id)

Description copied from interface: Graph

Returns the graph's node with the given id. Every node within a graph must be have a unique id.

Specified by:

getNode in interface Graph

Returns:

the graph's node with the given id or null if the graph does not contain a node with the given id.

getNodes

public Collection<Node> getNodes()

Description copied from interface: Graph

Returns the list of all nodes in the graph.

Specified by:

getNodes in interface Graph

Returns:

list of all nodes in the graph

getTransitions

public List<Transition> getTransitions()

Description copied from interface: Graph

Returns the list of all transitions in the graph.

Specified by:

getTransitions in interface Graph

Returns:

list of all transitions in the graph

getOutputTransitions

public List<Transition> getOutputTransitions(Node node)

Description copied from interface: Graph

Returns a list of transitions which have the given node as their starting point. The list may be empty but will never be null.

Specified by:

getOutputTransitions in interface Graph

Parameters:

node - A node belonging to this graph

Returns:

A list of transitions

getOutputTransitions

public Transition getOutputTransitions(Node node,
                                       String name)

Description copied from interface: Graph

Returns the transition which has the given node as their starting point and the given name, or null if no such transition exists.

Specified by:

getOutputTransitions in interface Graph

Parameters:

node - A node belonging to this graph

name - A transition name

Returns:

A list of transitions

setStartNode

public void setStartNode(Node startNode)

addNode

public void addNode(Node node)

addTransition

public void addTransition(Transition transition)