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Расширение: expression

Vocabulary Work Group Maturity Level: 1InformativeUse Context: Any

URL этого расширения:

http://hl7.org/fhir/StructureDefinition/valueset-expression

Статус: draft. Extension maintained by: HL7

An expression that provides an alternative definition of the content of the value set. There are two different ways to use this expression extension: If both an expression and a compose element is present, the compose is understood the make the same statement as the expression. If there is no compose, the expression is the only definition of the value set, and the value set can only be processed by a server that understands the expression syntax, it that is computable.

Comment:

The expression may be a reference or the actual expression, and ss expected to be a computable format (use the rules-text extension for a non-computable description).

Context of Use: Use on Element ID ValueSet

usage info: insert a list of places where this extension is used

Содержимое расширения

Сводка

ИмяФлагиКард.ТипОписание и ограниченияdoco
.. expression0..1ExpressionURL = http://hl7.org/fhir/StructureDefinition/valueset-expression
expression: An expression that provides an alternative definition of the content of the value set. There are two different ways to use this expression extension: If both an expression and a compose element is present, the compose is understood the make the same statement as the expression. If there is no compose, the expression is the only definition of the value set, and the value set can only be processed by a server that understands the expression syntax, it that is computable.


Use on Element ID ValueSet

doco Документация по этому формату

Полная структура

ИмяФлагиКард.ТипОписание и ограниченияdoco
.. extension0..1ExtensionURL = http://hl7.org/fhir/StructureDefinition/valueset-expression
expression: An expression that provides an alternative definition of the content of the value set. There are two different ways to use this expression extension: If both an expression and a compose element is present, the compose is understood the make the same statement as the expression. If there is no compose, the expression is the only definition of the value set, and the value set can only be processed by a server that understands the expression syntax, it that is computable.


Use on Element ID ValueSet
... extension 0..0
... url 1..1uri"http://hl7.org/fhir/StructureDefinition/valueset-expression"
... valueExpression 0..1ExpressionValue of extension

doco Документация по этому формату

XML-шаблон

<!-- expression -->doco

<extension xmlns="http://hl7.org/fhir"
     url="http://hl7.org/fhir/StructureDefinition/valueset-expression" >
  <!-- from Element: extension -->
 <valueExpression><!-- 0..1 Expression Value of extension --></valueExpression>
</extension>

JSON-шаблон

{ // expression
  // from Element: extension
    "extension" : [ //  sliced by value:url  in the specified order, Open ]
    "url" : "http://hl7.org/fhir/StructureDefinition/valueset-expression", // R! 
    "valueExpression" : { Expression } //Value of extension
  }

Сводка

ИмяФлагиКард.ТипОписание и ограниченияdoco
.. expression0..1ExpressionURL = http://hl7.org/fhir/StructureDefinition/valueset-expression
expression: An expression that provides an alternative definition of the content of the value set. There are two different ways to use this expression extension: If both an expression and a compose element is present, the compose is understood the make the same statement as the expression. If there is no compose, the expression is the only definition of the value set, and the value set can only be processed by a server that understands the expression syntax, it that is computable.


Use on Element ID ValueSet

doco Документация по этому формату

Полная структура

ИмяФлагиКард.ТипОписание и ограниченияdoco
.. extension0..1ExtensionURL = http://hl7.org/fhir/StructureDefinition/valueset-expression
expression: An expression that provides an alternative definition of the content of the value set. There are two different ways to use this expression extension: If both an expression and a compose element is present, the compose is understood the make the same statement as the expression. If there is no compose, the expression is the only definition of the value set, and the value set can only be processed by a server that understands the expression syntax, it that is computable.


Use on Element ID ValueSet
... extension 0..0
... url 1..1uri"http://hl7.org/fhir/StructureDefinition/valueset-expression"
... valueExpression 0..1ExpressionValue of extension

doco Документация по этому формату

XML-шаблон

<!-- expression -->doco

<extension xmlns="http://hl7.org/fhir"
     url="http://hl7.org/fhir/StructureDefinition/valueset-expression" >
  <!-- from Element: extension -->
 <valueExpression><!-- 0..1 Expression Value of extension --></valueExpression>
</extension>

JSON-шаблон

{ // expression
  // from Element: extension
    "extension" : [ //  sliced by value:url  in the specified order, Open ]
    "url" : "http://hl7.org/fhir/StructureDefinition/valueset-expression", // R! 
    "valueExpression" : { Expression } //Value of extension
  }

 

Constraints

  • ele-1: All FHIR elements must have a @value or children (xpath: @value|f:*|h:div)
  • ext-1: Must have either extensions or value[x], not both (xpath: exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')]))