Alert (sakai-velocity-tool-api 22.4 API)

```
public interface Alert
```
Alert is a interface for a set of messages intended for user display in the user interface.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`add(String alert)`	Add a new alert line.
`void`	`clear()`	Remove any messages in the Alert.
`String`	`getAlert()`	Access the alert message.
`boolean`	`isEmpty()`	Check to see if the alert is empty, or has been populated.
`String`	`peekAlert()`	Access the alert message, but unlike getAlert(), do not clear the message.

- Method Detail
  - add
```
void add(String alert)
```
    Add a new alert line. A line separator will be appended as needed.
    
    Parameters:
    
    alert - The alert message to add.
  - getAlert
```
String getAlert()
```
    Access the alert message. Once accessed, the message is cleared.
    
    Returns:
    
    The alert message.
  - peekAlert
```
String peekAlert()
```
    Access the alert message, but unlike getAlert(), do not clear the message.
    
    Returns:
    
    The alert message.
  - isEmpty
```
boolean isEmpty()
```
    Check to see if the alert is empty, or has been populated.
    
    Returns:
    
    true of the alert is empty, false if there have been alerts set.
  - clear
```
void clear()
```
    Remove any messages in the Alert.