Category Archives: Spring MVC

Changes in DD4T 2.1 for Java

Version 2.1 of DD4T has seen many improvements and changes with respect to the DD4T 2.0.X branch. While most changes are compatible with 2.0.X, it is recommended to upgrade your web application to the 2.1.X version. The main reason is that the 2.0.X releases will be discontinued and active development on it has stopped. Additionally, new versions of the DD4T Template Building Blocks may push new data formats or properties to the front end and these will only be incorporated in the DD4T 2.1 branch. New implementations are further encouraged to use the latest version, even if you already have published DD4T 1.0 XML or DD4T 2.0.X / 2.1.X Json in your Broker database, in order make use of the latest support for libraries, Tridion and fixed issues.

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Going polymorph with ViewModels in DD4T Java 2.0

Plato (~423 BC – ~347 BC) was a pretty smart guy. Among his many ideas and thoughts, his Theory of Forms had an immense influence on how we perceive and solve the philosophical Problem of universals. It basically comes down to the idea that every physical object has one or more essences (or Forms) and that if that object would not have that Form, it would not be that object: a dog is Mammal, but a giraffe is also a Mammal. What makes both animals Mammals? It’s, simply put, the Idea of the Mammal.

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ViewModel functionality in DD4T 2.0 for Java Part III – Complex Field Types

In part II of these series on ViewModel functionality in dd4t–2-java, it was explained how to create ViewModel classes and how to implement basic field types for the mapping between Tridion fields and DD4T ViewModel properties.

This post handles the more complex field types. The reason we make a distinction between ‘simple’ and ‘complex’ is mainly because the complex field types have more options to be deserialized into and need quite some help from DD4T to know what they will become.

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