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Learning Vaadin by Nicolas Frankel

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Summary

In this chapter, we have learned two great parts of many Vaadin applications.

The first part described the three levels of data wrapping in Vaadin:

  1. Property: It represents a simple object such as a String or a Date. Properties can be tweaked in order to display the encapsulated data the way we really want.
  2. Item: It wraps around a single structured object. We used our Person class to show how it could be encapsulated in Item, and finally displayed in a form. Forms are a nice façade over a single item, whether in a read-only or read-write mode.
  3. Container: It is the final level and lets us wrap around a collection of items. Containers may have additional properties such as filterable, sortable, and hierarchical, each one bringing features to ...

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