TemplateRequirement (XWiki Platform - Template - API 15.4 API)

```
@Role
@Unstable
public interface TemplateRequirement
```
Component in charge of validating the a requirement for a template.
This requirement is generally expressed using the template content properties syntax as ##!require.<hint>=<value>. For example if the following template will trigger a call to checkRequirement(String, String, Template) with the requirement key "my.requirement" and value "expected value":
```
 ##!require.my.requirement=expected value
 
```
Since:

15.0RC1, 14.10.1

Version:

$Id: 6e3154dc2724e1b25b5079975b88818b6025142a $

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`checkRequirement(String requirementKey, String value, Template template)`

- Method Detail
  - checkRequirement
```
void checkRequirement(String requirementKey,
                      String value,
                      Template template)
               throws TemplateRequirementException
```
    Parameters:
    
    requirementKey - the requirement key to check
    
    value - the requirement value to check
    
    template - the template on which the requirement applies
    
    Throws:
    
    TemplateRequirementException - when the requirement is not met or cannot be evaluated