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8.3. Resolving Globals
Globals can be resolved in three ways:
- getGlobals()
- The Stateless Knowledge Session method
getGlobals()returns a Globals instance which provides access to the session's globals. These are shared for all execution calls. Exercise caution regarding mutable globals because execution calls can be executing simultaneously in different threads. - Delegates
- Using a delegate is another way of providing global resolution. Assigning a value to a global (with
setGlobal(String, Object)) results in the value being stored in an internal collection mapping identifiers to values. Identifiers in this internal collection will have priority over any supplied delegate. If an identifier cannot be found in this internal collection, the delegate global (if any) will be used. - Execution
- Execution scoped globals use a
Commandto set a global which is then passed to theCommandExecutor.
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