code: public void addLinkValue(String ownerObjID, FieldDefinition linkDef, String targetObjID) {
          addColumn(SpiderService.objectsStoreName(linkDef.getTableDef()),
                    ownerObjID,
                    SpiderService.linkColumnName(linkDef, targetObjID));
      }
docs: Add a link value column to the objects store of the given object ID.
  
  @param ownerObjID    Object ID of object owns the link field.
  @param linkDef       {@link FieldDefinition} of the link field.
  @param targetObjID   Referenced (target) object ID.