Algorithm
+ run() return type:Graph
GraphCalculationService
execute() return type:Graph
RelationSpreadAlgorithmImpl
+ validateParam():returnType boolean+run() return type:Graph
Operator类执行具体的算法逻辑，如geabase的语句，都是在该类中进行实现
DecayedRelationSpreadImpl
GraphCalculationServiceImpl
AlgorithmOperatorMap
+ execute() return type:Graph
EdgePopulateAlgorithmImpl
QueryEdgeAlgorithmImpl
RelationDiscoveryAlgorithmImpl
EdgeGeabasePopulateOperator
+upDecayedSpreadInTrade+downDecaySpreadInTrade
+ spreadBlack(params)- spreadActiveInMedia(params)- queryVertices()
EdgePopulateOprator
EdgeHbasePopulateOperator（扩展）
