PatternWhen (Conditional Validator - Core 0.0.2 API)

@Repeatable(List.class)
@Documented
@Target({METHOD,FIELD})
@Retention(RUNTIME)
public @interface PatternWhen

Required Element Summary

Required Elements
Modifier and Type Required Element Description

String expression

String regexp

Optional Element Summary

Optional Elements
Modifier and Type	Optional Element	Description
`javax.validation.constraints.Pattern.Flag[]`	`flags`
`Class<?>[]`	`groups`
`String`	`message`
`Class<? extends javax.validation.Payload>[]`	`payload`

- Element Detail
  - expression
```
String expression
```
- - regexp
```
String regexp
```
    Returns:
    
    the regular expression to match
- - flags
```
javax.validation.constraints.Pattern.Flag[] flags
```
    Returns:
    
    array of Flags considered when resolving the regular expression
    
    Default:
    
    {}
- - message
```
String message
```
    Returns:
    
    the error message template
    
    Default:
    
    "{javax.validation.constraints.Pattern.message}"
- - groups
```
Class<?>[] groups
```
    Returns:
    
    the groups the constraint belongs to
    
    Default:
    
    {}
- - payload
```
Class<? extends javax.validation.Payload>[] payload
```
    Returns:
    
    the payload associated to the constraint
    
    Default:
    
    {}