You can encounter the following dialog box related to the local registry while working with WSO2 ESB:
Namespace Editor
This dialog box is invoked by clicking "Namespaces" link from the configuration section of mediators. XML namespaces provide a simple method for qualifying an element and attribute names used in Extensible Markup Language documents by associating them with namespaces identified by URI references. Enter a prefix and the URI which it identifies.
- Prefix
- URI - EPR of the target endpoint.
- Action - Allows to delete XPath from the list.