MessageService (RUVIK 0.0.1-SNAPSHOT API)

All Known Implementing Classes:

MessageServiceImpl
```
public interface MessageService
```

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`List<Message>`	`findByIdGreaterThan(Long conversationId, Long id)`	Search for messages with offset
`Conversation`	`haveConversation(Long id)`	Checks if conversation with given id exists
`void`	`save(Message message)`	Saves message

- Method Detail
  - save
```
void save(Message message)
```
    Saves message
    
    Parameters:
    
    message - Message data
  - haveConversation
```
Conversation haveConversation(Long id)
```
    Checks if conversation with given id exists
    
    Parameters:
    
    id - Conversation id
    
    Returns:
    
    Conversation or null if not exists
  - findByIdGreaterThan
```
List<Message> findByIdGreaterThan(Long conversationId,
                                  Long id)
```
    Search for messages with offset
    
    Parameters:
    
    conversationId - Conversation id
    
    id - Offset message id
    
    Returns:
    
    List of messages of given conversation with identifiers greater than given