ExternalActionManager.IActiveChecker (Eclipse Platform API Specification)

Enclosing class:

ExternalActionManager
```
public static interface ExternalActionManager.IActiveChecker
```
Defines a callback mechanism for developer who wish to further control the visibility of legacy action-based contribution items.

Since:

3.1

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`boolean`	`isActive(String commandId)`	Checks whether the command with the given identifier should be considered active.

- Method Detail
  - isActive
```
boolean isActive(String commandId)
```
    Checks whether the command with the given identifier should be considered active. This can be used in systems using some kind of user interface filtering (e.g., activities in the Eclipse workbench).
    
    Parameters:
    
    commandId - The identifier for the command; must not be null
    
    Returns:
    
    true if the command is active; false otherwise.