IUserValidator (formcycle: bom 8.5.6 API)

```
public interface IUserValidator
```
Validator interface for checking the existence of users in the system.

Since:

8.5.0

Author:

Norman Lorenz

Method Summary

All Methods Static Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`static IUserValidator`	`getInstance()`	Retrieves an instance of the IUserValidator using CDI.
`boolean`	`userExists(Long userId)`	Checks if a user with the specified ID exists in the system.

- Method Detail
  - getInstance
```
static IUserValidator getInstance()
```
    Retrieves an instance of the IUserValidator using CDI.
    
    Returns:
    
    an instance of IUserValidator.
  - userExists
```
boolean userExists(Long userId)
```
    Checks if a user with the specified ID exists in the system.
    
    Parameters:
    
    userId - the ID of the user to check for existence.
    
    Returns:
    
    true if a user with the specified ID exists, false otherwise.