VelocityGraph Namespace

An Edge links two vertices. Along with its key/value properties, an edge has both a directionality and a label. The directionality determines which vertex is the tail vertex (out vertex) and which vertex is the head vertex (in vertex). The edge label determines the type of relationship that exists between the two vertices. Diagrammatically, outVertex ---label---> inVertex.

All edges have a type that is identified as a EdgeType. Each EdgeType have a name, can be persisted and tracks all edges of its type. The edge type also knows about properties used by its type.

Base class for Edge and Vertex

Graph is the root object of a graph. Most graph api is on this class but useful api also exist on VertexType and EdgeType.

Keeper of Edge and Vertex properties

Used with string property type values. Avoids storing duplicate string values.

Keeper of Edge and Vertex properties

A vertex maintains pointers to both a set of incoming and outgoing edges. The outgoing edges are those edges for which the vertex is the tail. The incoming edges are those edges for which the vertex is the head. Diagrammatically, ---inEdges---> vertex ---outEdges--->

All vertices have a type that is identified as a VertexType. Each VertexType have a name, can be persisted and tracks all vertices of its type. The vertex type also knows about properties used by its type.

Choose IOptimizedPersistable instead of Object for property types where you only will store objects of type IOptimizedPersistable as property value.

A property can be index or not or index can require each entry to be unique