将多个参数传递给Neo4j中的forTypesAndDirections函数

Question

我试图通过可变数量的成对参数功能forTypesAndDirection运气不大。尝试下面的方式...任何想法？

// The relationships we will follow 
RelationshipType isa = DynamicRelationshipType.withName("is_a"); 
RelationshipType partof = DynamicRelationshipType.withName("part_of"); 

Object[] relations = new Object[4]; 

relations[0] = isa; 
relations[1] = Direction.OUTGOING; 
relations[2] = partof; 
relations[3] = Direction.OUTGOING; 

maxdistance = shortestDistance(node1, node2, 1000, relations); 

...

private Integer shortestDistance(Node source, Node target, Integer depth, Object... relations) { 

     PathFinder<org.neo4j.graphdb.Path> finder = GraphAlgoFactory.shortestPath(PathExpanders.forTypesAndDirections(relations), depth); 

... 
} 

错误消息：

[ERROR] ...:[441,105] method forTypesAndDirections in class org.neo4j.graphdb.PathExpanders cannot be applied to given types; 
required: org.neo4j.graphdb.RelationshipType,org.neo4j.graphdb.Direction,org.neo4j.graphdb.RelationshipType,org.neo4j.graphdb.Direction,java.lang.Object[] 
found: java.lang.Object[] 
reason: no instance(s) of type variable(s) STATE exist so that argument type java.lang.Object[] conforms to formal parameter type org.neo4j.graphdb.RelationshipType 

Answer 1

该方法的签名是这样的，你必须通过在显式前两对，则该数组，如果你有更多。