Package ch.tocco.nice2.model.base.spi.display

Interface DisplayValueFactory

All Known Implementing Classes:
DisplayValueFactoryImpl
public interface DisplayValueFactory
Creates DisplayValues from Strings.

Used to create DisplayValue's based on prefixes or types. Please look at the DisplayEvaluator interface for a list of knows evaluator implementations.

  • Method Details

    • createByPrefix

      DisplayValue createByPrefix(String string)
      Creates a DisplayValue from a string. The prefix is used to determine what kind of display-value is returned.

      Use this method when you don't know the prefix or you don't want to extract it from the String by yourself. Falls back to the default evaluator when there are

      • a) no evaluators
      • b) or the string has a prefix which can't be handled
      • c) or the string isn't prefixed at all

      When you know the type, please use create(String, String)

      Parameters:
      string - The label.
      Returns:
      Created display value ready to evaluate.

    • create

      DisplayValue create(String type, String string)
      Creates a DisplayValue from a string and type.

      Checks for available evaluator for type and returns new DisplayValue based on it. Has no fallback to the default evaluator.

      The difference between this method and createByPrefix(String) is simply, that for this method you have to know the prefix before whereas in createByPrefix(String) you can just pass the String and the prefix is extracted out of it.

      Parameters:
      type - Type of the evalutator (entity, constant, textresource...).
      string - The label to evaluate.
      Returns:
      Display value which can be evaluated against the evaluator found by type.
      Throws:
      IllegalArgumentException - when evaluator is missing