Conditional (JBehave Core 5.1-SNAPSHOT API)

```
@Retention(RUNTIME)
@Target({METHOD,TYPE})
public @interface Conditional
```
Indicates that the step should be performed only if the specified condition is met. A condition is a state that can be determined programmatically before the step is performed.

- Required Element Summary
  
  Required Elements
  Modifier and Type Required Element Description
  
  Class<? extends Predicate<Object>> condition
  Defines the class of condition that will be used for step matching.
- Optional Element Summary
  
  Optional Elements
  Modifier and Type Optional Element Description
  
  String value
  Defines the value to match the condition against.

- Element Detail
  - condition
```
Class<? extends Predicate<Object>> condition
```
    Defines the class of condition that will be used for step matching.
    
    Returns:
    
    the Predicate implementation class.
- - value
```
String value
```
    Defines the value to match the condition against.
    
    Returns:
    
    the String value, empty by default.
    
    Default:
    
    ""