Export rules are an instrument to reduce the number of resources that are re-exported by an export after publish. Using static export after publish, OpenCms has to determine the resources that have to be re-exported from the list of published resources. Since dependencies can be very involved, it is in most cases impossible to determine what the re-export candidates are. Thus, OpenCms uses exports more resources than necessary. Typically all dynamic resources are be re-rendered and exported when only a single dynamic resource is published.
Export rules specify dependencies between resources. Thus, they tell OpenCms explicitly which resources have to be re-exported after a special resource is published. Thus, good export rules can reduce publish time substantially.
The export rules, as also all the other configuration settings for the static export, are configured in
An export rule needs following data.