ServicePermissionRule (TIBCO EBX® Version 6.1.2 Java API)

```
public interface ServicePermissionRule<S extends EntitySelection>
```
This interface can be implemented to specify the conditions under which a user service can be displayed and executed.
A class implementing this interface can be declared at two levels:
- as a global permission rule, when declared within the service declaration via API;
- as a data model local permission rule, when set in a schema extension; a local rule only applies in its data model assigned context.
For more information, see the Programmatic permission on service documentation.
Since:

5.8.0

See Also:

Resolving permissions for services

Field Summary

Fields
Modifier and Type	Field	Description
`static ServicePermissionRule<EntitySelection>`	`ALWAYS_DISABLED`	Always returns the disabled permission (i.e both for display and execution contexts).
`static ServicePermissionRule<EntitySelection>`	`ALWAYS_ENABLED`	Always returns the enabled permission (i.e for both display and execution contexts).
`static ServicePermissionRule<EntitySelection>`	`ENABLED_FOR_EXECUTION_ONLY`	Returns the disabled permission for display context, but returns enabled for execution.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`UserServicePermission`	`getPermission(ServicePermissionRuleContext<S> aContext)`	Returns a permission for the specified context.

- Field Detail
  - ALWAYS_ENABLED
```
static final ServicePermissionRule<EntitySelection> ALWAYS_ENABLED
```
    Always returns the enabled permission (i.e for both display and execution contexts).
  - ENABLED_FOR_EXECUTION_ONLY
```
static final ServicePermissionRule<EntitySelection> ENABLED_FOR_EXECUTION_ONLY
```
    Returns the disabled permission for display context, but returns enabled for execution.
  - ALWAYS_DISABLED
```
static final ServicePermissionRule<EntitySelection> ALWAYS_DISABLED
```
    Always returns the disabled permission (i.e both for display and execution contexts).
- Method Detail
  - getPermission
```
UserServicePermission getPermission(ServicePermissionRuleContext<S> aContext)
```
    Returns a permission for the specified context.
    This method is called to evaluate permissions in two cases:
    
    on display of a button or a menu item launching the service;
    
    on launch of the service.
    
    Multi-threading
    
    This method can be called simultaneously by several threads.
    Parameters:
    
    aContext - the current context in which the permission has to be resolved.