PackageURL

```
@Target(FIELD)
@Retention(RUNTIME)
@Constraint(validatedBy=PackageURLConstraintValidator.class)
public @interface PackageURL
```
Annotation that can be applied to a String field within a class. The PackageURL annotation instructs the JSR-303 compliant validator to validate the field to ensure it meets the Package URL specification.

Since:

1.3.0

- Optional Element Summary
  
  Optional Elements
  Modifier and Type Optional Element Description
  
  java.lang.Class<?>[] groups
  
  java.lang.String message
  
  java.lang.Class<? extends javax.validation.Payload>[] payload

- Element Detail
  - message
```
java.lang.String message
```
    Default:
    
    "The Package URL (purl) must be a valid URI and conform to https://github.com/package-url/purl-spec"
- - groups
```
java.lang.Class<?>[] groups
```
    Default:
    
    {}
- - payload
```
java.lang.Class<? extends javax.validation.Payload>[] payload
```
    Default:
    
    {}