com.thinkaurelius.titan.core.olap

Interface Gather<S,M>

public interface Gather<S,M>

Function which gathers the state of an adjacent vertex and any properties of the connecting edge into a single object.

Author:

Matthias Broecheler (me@matthiasb.com)

Method Summary

Methods

Modifier and Type	Method and Description
M	apply(S state, TitanEdge edge, com.tinkerpop.blueprints.Direction dir) Gathers the adjacent vertex's state and the connecting edge's properties into a single object to be combined by a corresponding Combiner as configured in OLAPQueryBuilder.edges(Gather, Combiner).

Method Detail

apply

M apply(S state,
      TitanEdge edge,
      com.tinkerpop.blueprints.Direction dir)

Gathers the adjacent vertex's state and the connecting edge's properties into a single object to be combined by a corresponding Combiner as configured in OLAPQueryBuilder.edges(Gather, Combiner).

Parameters:

state - State of the adjacent vertex

edge - Edge connecting to the adjacent vertex

dir - Direction of the edge from the perspective of the current/central vertex

Returns:

An object of type M which gathers the state and edge properties