What are wrapper and veener functions? How to apply them in a system design?

I looked for detailed infor开发者_JS百科mation on wrappers and veeners. Looks like there are very few info about them. How can it be used in a design diagram or in Java?

Could someone explain me? Thank you.

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Adapter or Wrapper (I've never heard anyone call it Verneer) is one of the Gang of Four Design Patterns. Here's what it's for:

Convert the interface of a class into another interface clients expect. Adapter lets classes work together that couldn't otherwise because of incompatible interfaces

Have a look at this.

The definitive reference, now 15 years old, is the Gang of Four "Design Patterns".