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Alfresco 3 Enterprise Content Management Implementation by Vinita Choudhary, Pallika Majumdar, Munwar Shariff, Amita Bhandari

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Constraints

A Constraint controls the input value of a property. Constraints can be used to validate input values, and to ensure the use of certain predefined values for the properties. Constraints are defined separately from content types and aspects, and are referenced within a property type definition.

Constraint types

Alfresco provides four types of constraints out of the box, as follows. Apart from these four, the custom constraints can be defined by using Java Programming Language.

  • REGEX: ensures that a property value matches a defined regular expression pattern
  • LIST: ensures that a property value is picked up from a list of predefined values
  • MINMAX: ensures that the given property value falls within a defined numeric range
  • LENGTH: ensures that ...

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