Pattern (ConfNG 1.1.0 API)

```
@Documented
@Retention(RUNTIME)
@Target(FIELD)
public @interface Pattern
```
Validates that a configuration value matches a regular expression pattern.
When applied to a ConfNGKey enum constant, validation will fail if the configuration value does not match the specified regex pattern.

Example usage:
```
{@code
 public enum MyConfig implements ConfNGKey {
```
Since:

1.1.0

Author:

Bharat Kumar Malviya, GitHub: github.com/imBharatMalviya

See Also:

ConfigValidator

- Required Element Summary
  
  Required Elements
  Modifier and Type Required Element Description
  
  String regex
  The regular expression pattern to match against.
- Optional Element Summary
  
  Optional Elements
  Modifier and Type Optional Element Description
  
  String message
  Custom error message to use when validation fails.

- Element Detail
  - regex
```
String regex
```
    The regular expression pattern to match against.
    
    Returns:
    
    the regex pattern
- - message
```
String message
```
    Custom error message to use when validation fails. If empty, a default message will be generated.
    
    Returns:
    
    the custom error message
    
    Default:
    
    ""