如何在Elasticsearch GraphDB连接器中使用逆属性？

Question

例如，做这样的工作：{ “字段名”： “远处”， “propertyChain”： “ http://example.com/y/z/propertyA ”，“^ http://example.com/y/z / propertyB “]}，...

Answer 1

In GraphDB 8.x, Connectors does not support indexing of subjects for a given object. The rationale behind this design decision is to keep all indexes smaller in the case of longer property paths.

For repositories with configured inference (ie the ruleset is not empty), I recommend declaring an owl:inverseOf property like:

:PropertyB owl:inverseOf :PropertyInverseOfB.

owl:inverseOf will create a new implicit triple with the direction from the object to the subject, so you can put:

{ 
  "fieldName": "aField", 
  "propertyChain": 
     [ "http://example.com/y/z/propertyA", "http://example.com/y/z/propertyInverseOfB" ]
}

For repositories with empty ruleset, you would need to change your modelling and create a new triple in the opposite direction.