Attribute (Vert.x Stack - Docs 5.0.0 API)

```
public interface Attribute
```
An attribute is a simple matcher for policies. A Attribute is created from a JsonPointer to the User object and a logical operator:
- has(String, Object) - the value must be in the JsonArray or JsonObject
- eq(String, Object) - the value must be equals to the pointed location
- ne(String, Object) - the value must not be equals to the pointed location

Method Summary

All Methods Static Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`static Attribute`	`create(Function<User,Boolean> function)`	A custom function to be used during matching.
`static Attribute`	`eq(String pointer, Object value)`	Verifies whether the attribute matches the specified.
`static Attribute`	`has(String pointer, Object value)`	Verifies whether the attribute matches the specified.
`boolean`	`match(User user)`	Verifies whether the attribute matches the specified user.
`static Attribute`	`ne(String pointer, Object value)`	Verifies whether the attribute matches the specified.
`JsonObject`	`toJson()`

- Method Detail
  - has
```
static Attribute has(String pointer,
                     Object value)
```
    Verifies whether the attribute matches the specified. The value must be in the JsonArray or JsonObject referenced by the json pointer.
  - eq
```
static Attribute eq(String pointer,
                    Object value)
```
    Verifies whether the attribute matches the specified. The value must be equal to the value referenced by the json pointer.
  - ne
```
static Attribute ne(String pointer,
                    Object value)
```
    Verifies whether the attribute matches the specified. The value must not be equal to the value referenced by the json pointer.
  - create
```
static Attribute create(Function<User,Boolean> function)
```
    A custom function to be used during matching.
  - match
```
boolean match(User user)
```
    Verifies whether the attribute matches the specified user.
    
    Parameters:
    
    user - the user.
    
    Returns:
    
    true if there's a match
  - toJson
```
JsonObject toJson()
```