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— Tamino XML Schema Reference Guide —

xs:minLength

Purpose	This element is a restriction facet used to specify an inclusive minimum length constraint for a data item. The actual value of the constraint is given by the `value` attribute.
Parent element	`xs:restriction`
Child elements	None
Attributes	`fixed`, `value`
Restrictions	The following restrictions apply: The `xs:minLength` element may not be specified simultaneously with the `xs:length` element. If an `xs:maxLength` element is specified along with the `xs:minLength` element in the same restriction, the `value` attribute of the `xs:minLength` element must be less than or equal to the `value` attribute of the `xs:maxLength` element. The following update schema constraint applies to the `xs:minLength` element: The value of `xs:minLength` is not permitted to become more restrictive after update schema. This means that if an `xs:minLength` element is specified for the base type, the `value` attribute of this element in the derivation must not be less than the `value` attribute of the base type.

Attributes

Name Type Description

fixed xs:boolean If "true", the value of this facet must not be changed in a derived type. Default: "false".

Name	Type	Description
`fixed`	`xs:boolean`	If "true", the value of this facet must not be changed in a derived type. Default: "false".
`value`	`xs:nonNegativeInteger`	The value of the `xs:minLength` facet is measured in different units depending on the base type of the restriction: Binary data (such as "hexBinary" or "base64Binary"): Octets List data (such as "IDREFS", "ENTITIES", "NMTOKENS"): Number of list items String types: Number of characters The `value` attribute specifies the minimum length of the restricted type in number of octets of binary data (if the type is `hexBinary` or `base64Binary`) or number of characters otherwise.

value

xs:nonNegativeInteger

The value of the xs:minLength facet is measured in different units depending on the base type of the restriction:

Binary data
(such as "hexBinary" or "base64Binary"):

Octets
List data
(such as "IDREFS", "ENTITIES", "NMTOKENS"):

Number of list items
String types:
Number of characters

The value attribute specifies the minimum length of the restricted type in number of octets of binary data (if the type is hexBinary or base64Binary) or number of characters otherwise.

Example

The following example shows a simple type definition based on a restriction using the xs:minLength element:

<xs:simpleType name="input-field">
  <xs:restriction base="xs:string">
    <xs:minLength value="8"/>
  </xs:restriction>
</xs:simpleType>

This defines a string to be used as an input field with a length of at least 8 characters.

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