ServerMessageService (Silverpeas Core 6.4 API)

All Known Implementing Classes:

DefaultServerMessageService
```
public interface ServerMessageService
```
Author:

Yohann Chastagnier

Method Summary

All Methods Static Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`deleteAll(String userId, String sessionId)`	Deletes all the messages linked to the user and the session represented by given identifiers.
`void`	`deleteById(String msgId)`	Deletes the message which is referenced by the given identifier.
`static ServerMessageService`	`get()`
`void`	`push(String userId, String message, String sessionId)`	Pushes a new message into the context.
`ServerMsg`	`read(String userId, String sessionId)`	Read the first message (the oldest in other words) about a user and a session.

- Method Detail
  - get
```
static ServerMessageService get()
```
  - read
```
ServerMsg read(String userId,
               String sessionId)
```
    Read the first message (the oldest in other words) about a user and a session.
    
    Parameters:
    
    userId - the identifier of the user.
    
    sessionId - the identifier of the session.
    
    Returns:
    
    an instance of ServerMsg which represents the Silverpeas message.
  - deleteById
```
void deleteById(String msgId)
```
    Deletes the message which is referenced by the given identifier.
    
    Parameters:
    
    msgId - the identifier of the message to delete.
  - deleteAll
```
void deleteAll(String userId,
               String sessionId)
```
    Deletes all the messages linked to the user and the session represented by given identifiers.
    
    Parameters:
    
    userId - the identifier of the user.
    
    sessionId - the identifier of the session.
  - push
```
void push(String userId,
          String message,
          String sessionId)
```
    Pushes a new message into the context.
    
    Parameters:
    
    userId - the identifier of the user.
    
    message - the message content.
    
    sessionId - the identifier of the session.