| Class | Description | 
|---|---|
| AbstractVerticle | |
| CompositeFuture | 
 The composite future wraps a list of  
futures, it is useful when several futures
 needs to be coordinated. | 
| Context | 
 The execution context of a  
Handler execution. | 
| Future<T> | 
 Represents the result of an action that may, or may not, have occurred yet. 
 | 
| MultiMap | 
 This class represents a MultiMap of String keys to a List of String values. 
 | 
| Promise<T> | 
 Represents the writable side of an action that may, or may not, have occurred yet. 
 | 
| RxHelper | 
 A set of helpers for RxJava and Vert.x. 
 | 
| TimeoutStream | 
 A timeout stream is triggered by a timer, the  
Handler will be call when the timer is fired,
 it can be once or several times depending on the nature of the timer related to this stream. | 
| Vertx | 
 The entry point into the Vert.x Core API. 
 | 
| WorkerExecutor | 
 An executor for executing blocking code in Vert.x . 
 | 
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