Package org.apache.tinkerpop.gremlin.process.computer

Interface Summary

Interface	Description
ComputerResult	The result of the GraphComputer's computation.
GraphComputer	The GraphComputer is responsible for the execution of a VertexProgram and then a set of MapReduce jobs over the vertices in the Graph.
GraphComputer.Features
MapReduce<MK,MV,RK,RV,R>	A MapReduce is composed of map(), combine(), and reduce() stages.
MapReduce.MapEmitter<K,V>	The MapEmitter is used to emit key/value pairs from the map() stage of the MapReduce job.
MapReduce.ReduceEmitter<OK,OV>	The ReduceEmitter is used to emit key/value pairs from the combine() and reduce() stages of the MapReduce job.
Memory	The Memory of a GraphComputer is a global data structure where by vertices can communicate information with one another.
Memory.Admin	The Admin interface is used by the GraphComputer to update the Memory.
MessageCombiner<M>	A MessageCombiner allows two messages in route to the same vertex to be aggregated into a single message.
Messenger<M>	The Messenger serves as the routing system for messages between vertices.
VertexProgram<M>	A VertexProgram represents one component of a distributed graph computation.
VertexProgram.Builder
VertexProgram.Features

Class Summary

Class	Description
Computer
GraphComputer.Exceptions
GraphFilter	GraphFilter is used by GraphComputer implementations to prune the source graph data being loaded into the OLAP system.
KeyValue<K,V>
MapReduce.NullObject	A convenience singleton when a single key is needed so that all emitted values converge to the same combiner/reducer.
Memory.Exceptions
MemoryComputeKey<A>	A MemoryComputeKey specifies what keys will be used by a Memory during a GraphComputer computation.
MessageScope	A MessageScope represents the range of a message.
MessageScope.Global	A Global message is directed at an arbitrary vertex in the graph.
MessageScope.Local<M>	A Local message is directed to an adjacent (or "memory adjacent") vertex.
MessageScope.Local.ReverseTraversalSupplier	A helper class that can be used to generate the reverse traversal of the traversal within a MessageScope.Local.
VertexComputeKey	A VertexComputeKey specifies a property of a vertex that will be used to store GraphComputer data.

Enum Summary

Enum	Description
GraphComputer.Persist
GraphComputer.ResultGraph
GraphFilter.Legal	A enum denoting whether a particular result will be allowed or not.
MapReduce.Stage	MapReduce is composed of three stages: map, combine, and reduce.
ProgramPhase