有一个fqn节点属性-完全限定名称.

There is a fqn node property - full qualified name.

因此正确的查询应为:

MATCH 
   (i:Interface {fqn:'com.whatever.foo.bar.Action'}  )<-[:IMPLEMENTS|EXTENDS*1..10]- (class), 
   (abstractAction:Class {fqn:'com.whatever.foo.bar.AbstractAction'}) 
   where not (class)-->(abstractAction)   
RETURN class

此查询产生笛卡尔乘积，这意味着它的性能不是很高.

This query produces a cartesian produckt which means that it's not very performant.

下图显示了针对我的一个项目的查询的执行计划:

The following image shows the execution plan of that query for one of my projects:

此问题更详细地解决了该问题:

This questions deals with that problem in more detail: Why does neo4j warn: "This query builds a cartesian product between disconnected patterns"?

由于此查询仅用于分析目的，而不是针对生产系统执行，因此我将忽略该提示.

Since this query is just for analysis purposes and not executed against a production system, I would ignore that hint.