MustDefinition (yangtools-docs 4.0.6 API)

All Superinterfaces:

ConstraintMetaDefinition, DocumentedNode
```
public interface MustDefinition
extends ConstraintMetaDefinition
```
Contains methods for accessing constraint declaration for valid data in form of XPath expressions.

YANG example:
must "ifType != 'ethernet' or (ifType = 'ethernet' and ifMTU = 1500)";

- Nested Class Summary
  - Nested classes/interfaces inherited from interface org.opendaylight.yangtools.yang.model.api.DocumentedNode
    DocumentedNode.WithStatus
- Method Summary
  
  All Methods Instance Methods Abstract Methods
  Modifier and Type Method Description
  
  RevisionAwareXPath getXpath()
  Returns XPath expression which contains constraint.
  - Methods inherited from interface org.opendaylight.yangtools.yang.model.api.ConstraintMetaDefinition
    getErrorAppTag, getErrorMessage
  - Methods inherited from interface org.opendaylight.yangtools.yang.model.api.DocumentedNode
    getDescription, getReference, getUnknownSchemaNodes

- Method Detail
  - getXpath
```
RevisionAwareXPath getXpath()
```
    Returns XPath expression which contains constraint.
    
    Returns:
    
    XPath expression which represents the value of the argument of the must YANG substatement