Dynamic allocation of program libraries

摘要

A method of dynamic allocation of program libraries to an application server is provided. In addition to a static allocation of libraries to the server at initialization time, libraries can be added to or removed from the set available to a server while that server is active. New libraries are created as resource objects specifying a set of locations from which programs can be loaded. Each library is allocated a ranking which the system can use to identify its place in the loader's search order relative to other libraries. New library resources are dynamically installed and added to a list of available libraries, including the system's pre-defined library of locations, in a position in the loader's search order determined in accordance with the allocated ranking.

主权项

1. A method of dynamically modifying the set of locations available to an application server from which programs may be loaded, the method comprising:
allocating a ranking to a predefined library identifying a set of locations from which programs may be loaded; creating a new library resource specifying a set of one or more locations from which the application server may load programs; allocating a ranking to the new library resource; and dynamically installing the new library resource without restarting the application server, including adding the new library resource to a list of installed libraries including the predefined library and determining a search order of the installed libraries as a function of their respective allocated rankings.