search: keywords: ['Java API', 'OVertex', 'OEdge', 'add edge', 'addEdge']

OVertex - addEdge()

This method adds an edge linking this vertex to another.

Adding Edges

In a Graph database, edges function as relationships linking different vertices together. Using this method, you can link one OVertex instance to another. You can create the edge as either a Lightweight Edge or a Regular Edge.

Syntax

Records in OrientDB have their own classes on the database, which extend the OClass class. All edges are extensions of the E database class. The first method creates the edge as an instance of the default E class. The remaining methods allow you to define the class to which the new edge belongs.

// METHOD 1 
OEdge OVertex().addEdge(OVertex toVertex)

// METHOD 2 
OEdge OVertex().addEdge(OVertex toVertex, OClass type)

// METHOD 3 
OEdge OVertex.addEdge(OVertex toVertex, String name)

Argument	Type	Description
`toVertex`	`OVertex`	Defines the vertex the edge connects to
`type`	`OClass`	Defines the OrientDB database class the edge belongs to
`name`	`String`	Defines the OrientDB database class the edge belongs to

Return Value

This method returns an OEdge instance, which represents the edge you've added to the vertex.