Page History

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The issues are briefly summarised in 

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Localisation support

• Mess with the interfaces, high level of indirection.
  • Transformer#hasI18NSupport, TransformedProperty#hasI18NSupport which delegates to the first one.
  • Three objects' methods have to be called so that the new language is applied to a property (Transformer, TransformedProperty and DefaultI18NAuthoringSupport):
    • DefaultI18NAuthoringSupport#constructI18NPropertyName;
    • Transformer#setI18NPropertyName;
    • Transformer#setLocale which simply stores new locale in transformer object;
    • TransformedProperty#fireI18NValueChange which in reality simply re-reads the value from the transformer.
• I18NAuthoringSupport digs into UI structures code searching for the components with localize-able data-sources.
  • Logic separation levels breached - ideally Vaadin-agnostic component crawls the UI hierarchy searching for the property data-sources that can be localised;
  • Looks cryptic and patchy - one has to know how the forms are composed and how the i18n mechanism is implemented in Transformers and TransformedProperty;
  • Rigidness and hacks - instanceof's checking the abstract objects to belong to concrete types like BasicTransformer, TransformedProperty etc.
• Poor support of multi-field localisation 
  • The old property transformers do not support i18n and that probably cannot be fixed due to their implementation;
  • The new "delegating" transformers do support i18n but internally management of locale-specific data is complicated.

• Jira
  server Magnolia - Issue tracker serverId 500b06a6-e204-3125-b989-2d75b973d05f key MGNLUI-3491

   - switching language negatively affects validation.

Default values

• Handled only once by the FieldFactory object. Later during lifecycle of the field the default value is not resolvable.
  • Consequence - during change of locale there is no straightforward way to set the default value for a localized property (

    Jira
    server Magnolia - Issue tracker columns key,summary,type,created,updated,due,assignee,reporter,priority,status,resolution serverId 500b06a6-e204-3125-b989-2d75b973d05f key MGNLUI-3489

    ).

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