question: private Object parseRelationship ( JsonNode relationshipDataNode , Class < ? > type ) throws IOException , IllegalAccessException , InstantiationException { if ( ValidationUtils . isRelationshipParsable ( relationshipDataNode ) ) { String identifier = createIdentifier ( relationshipDataNode ) ; if ( resourceCache . contains ( identifier ) ) { return resourceCache . get ( identifier ) ; } else { resourceCache . lock ( ) ; try { return readObject ( relationshipDataNode , type , true ) ; } finally { resourceCache . unlock ( ) ; } } } return null ; }
target:  Creates relationship object by consuming provided 'data' node.