EContextService (Eclipse Platform API Specification)

```
public interface EContextService
```
Since:

1.0

Restriction:

This interface is not intended to be implemented by clients.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`activateContext(java.lang.String id)`	Adds the given `Context` id to the list of active contexts
`void`	`deactivateContext(java.lang.String id)`	Removes the given `Context` id from the list of active `Context`s
`void`	`deferUpdates(boolean defer)`
`java.util.Collection<java.lang.String>`	`getActiveContextIds()`	Returns the complete listing of `Context` ids that are active or `null` if there are no active `Context`s
`Context`	`getContext(java.lang.String id)`	Look up a `Context` with a given id.

- Method Detail
  - getContext
```
Context getContext(java.lang.String id)
```
    Look up a Context with a given id. If no Context has the given id then null is returned
    
    Parameters:
    
    id - the id of the Context, cannot be null
    
    Returns:
    
    the Context with the given id or null
  - activateContext
```
void activateContext(java.lang.String id)
```
    Adds the given Context id to the list of active contexts
    
    Parameters:
    
    id - the id of the Context, cannot be null
  - deactivateContext
```
void deactivateContext(java.lang.String id)
```
    Removes the given Context id from the list of active Contexts
    
    Parameters:
    
    id - the id of the Context, cannot be null
  - getActiveContextIds
```
java.util.Collection<java.lang.String> getActiveContextIds()
```
    Returns the complete listing of Context ids that are active or null if there are no active Contexts
    
    Returns:
    
    the active Context ids or null
    
    See Also:
    
    IServiceConstants.ACTIVE_CONTEXTS
  - deferUpdates
```
void deferUpdates(boolean defer)
```
    Restriction:
    
    This method is not intended to be referenced by clients.