org.kie.workbench.common.stunner.bpmn.client.marshall.converters.tostunner

Class GraphBuilder

java.lang.Object

org.kie.workbench.common.stunner.bpmn.client.marshall.converters.tostunner.GraphBuilder

public class GraphBuilder
extends Object

A wrapper for graph command execution, exposing a simple, method-based API.

A `GraphBuilder` object issues commands to the canvas while building the graph. It is a wrapper around

• GraphCommandExecutionContext
• GraphCommandFactory
• GraphCommandManager

`GraphBuilder` is used for convenience, to avoid explicitly creating command instances. It also implements custom logic for some actions. For example, in the case of adding child nodes, it translates the coordinates of a child node into the new reference system (the parent boundaries).

`GraphBuilder` builds the entire graph buildGraph(BpmnNode) once all the conversions have took place: it traverses the entire directed graph described by the `BPMNNode`s starting from the "root node", which represents the root of the diagram, and visiting the parent/child relations in each BPMNNode and the `BPMNEdge` they may contain.

Constructor Summary

Constructors

Constructor and Description
GraphBuilder(Graph<DefinitionSet,Node> graph, DefinitionManager definitionManager, TypedFactoryManager typedFactoryManager, RuleManager ruleManager, GraphCommandFactory commandFactory, GraphCommandManager commandManager)

Method Summary

Modifier and Type	Method and Description
void	buildGraph(BpmnNode rootNode) Starting from the given root node, it walks the graph breadth-first and issues all the required commands to draw it on the canvas
void	render(BpmnNode root) Clears the context and then walks the graph root to draw it on the canvas

Methods inherited from class java.lang.Object

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

Constructor Detail

GraphBuilder

public GraphBuilder(Graph<DefinitionSet,Node> graph,
                    DefinitionManager definitionManager,
                    TypedFactoryManager typedFactoryManager,
                    RuleManager ruleManager,
                    GraphCommandFactory commandFactory,
                    GraphCommandManager commandManager)

Method Detail

render

public void render(BpmnNode root)

Clears the context and then walks the graph root to draw it on the canvas

buildGraph

public void buildGraph(BpmnNode rootNode)

Starting from the given root node, it walks the graph breadth-first and issues all the required commands to draw it on the canvas