The Open Client Toolkit (a component of OpenEdge® Studio) exposes AppServer functionality to Open Clients (non-Progress clients). As discussed in OpenEdge Development: Open Client Introduction and Programming, the ProxyGen tool allows you to generate proxy objects for Java (and other) Open Clients. These proxy objects encapsulate remote ABL procedures and functions supported on an AppServer. Your Java Open Client application can then access these AppServer procedures and functions through methods of the generated proxy objects.
This book contains Java-specific information about creating and using Open Clients. It describes how to develop Java Open Clients and how to provide access to OpenEdge ABL business logic from Java clients.