Closeable (Vert.x Core 5.0.0.CR1 API)

```
public interface Closeable
```
A closeable resource.
This interface is mostly used for internal resource management of Vert.x.

Author:

Tim Fox

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`close(Promise<Void> completion)`	Close this resource, the `completion` promise must be notified when the operation has completed.

- Method Detail
  - close
```
void close(Promise<Void> completion)
```
    Close this resource, the completion promise must be notified when the operation has completed.
    
    Parameters:
    
    completion - the promise to signal when close has completed