Backend API

public class Edge

Visually, an edge is a link between two nodes. An edge is a part of the flow. The notion is described in the Flow-based programming paradigm.

Created by antoine on 29/05/17.

public String getId ()

Give the unique id of the edge

• Returns: its uuid

public JSONObject getSrc ()

Give the source element of the edge.

As described in the FBP Network Protocol, the source element is composed of : - The node id - The port of the node the edge is connected to

• Returns: the src el as JSONObject

public void setSrc (JSONObject src)

Set the source element of the edge.

As described in the FBP Network Protocol, the source element is composed of : - The node id - The port of the node the edge is connected to

• Parameters: src — the FBP compliant src element

public void setTgt (JSONObject tgt)

Set the target element of the edge.

As described in the FBP Network Protocol, the target element is composed of : - The node id - The port of the node the edge is connected to

• Parameters: tgt — the FBP compliant tgt element

public JSONObject getMetadata ()

Give the metadata of the edhe

• Returns: the metadata as a JSONObject

public void setMetadata(JSONObject metadata)

Replace the metadata of the edge with the given one

• Parameters: metadata — the new metadata

public String getGraph ()

Give the graph id on which the edge is.

• Returns: the unique id of the graph.

public JSONObject getJson()

Give the JSONObject representing a node. The JSON has the following structure : { ‘id’: string, ‘src’: object, ‘tgt’: object, ‘metadata’: object, ‘graph’: string }

• Returns: a JSONObject containing the edge’s data

private void build ()

Build the JSONObject of the edge.

The JSON has the following structure : { ‘id’: string, ‘src’: object, ‘tgt’: object, ‘metadata’: object, ‘graph’: string }