Observer (Uberfire Metadata API 7.71.0.Final API)

```
public interface Observer
```
Observers are notified by the Index Engine of activity

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`error(String message)`	Error message
`void`	`information(String message)`	Information message
`void`	`warning(String message)`	Warning message

- Method Detail
  - information
```
void information(String message)
```
    Information message
    
    Parameters:
    
    message -
  - warning
```
void warning(String message)
```
    Warning message
    
    Parameters:
    
    message -
  - error
```
void error(String message)
```
    Error message
    
    Parameters:
    
    message -