Template:Constraint

Usage

This template standardizes the declaration of constraints. It became necessary to process the default values.

Parameters

The template has 4 unnamed Parameters and a named one:

1. The attribute name to which the constraint applies
2. xsd for standard types like string and boolean resp. rml for generic railML^® types like tGenericRef
3. the type, e.g. string or tGenericRef
4. is the attribute optional (default) or required?

• default: the default vaue (optional), e.g. TRUE

Examples

*{{constraint|vehicleRef|rml|tGenericRef|mandatory}}

delivers

• {{#if:|{{defaults|Element=[[Constraint}}|Attribute=vehicleRef|Value={{{default}}}}}}}vehicleRef: tGenericRef (xs:IDREF); mandatory

*{{constraint|vehicleCount|rml|tCounter|default=1}}

delivers

• {{#if:1|{{defaults|Element=[[Constraint}}|Attribute=vehicleCount|Value=1}}}}vehicleCount: tCounter (xs:nonNegativeInteger); default: 1; optional

*{{constraint|frontGangway|xsd|boolean}}

delivers

• {{#if:|{{defaults|Element=[[Constraint}}|Attribute=frontGangway|Value={{{default}}}}}}}frontGangway: xs:boolean; optional