This design pattern converts the interface of a class into another interface clients expect. This design pattern lets classes work together that couldn‘t otherwise because of incompatible interfaces.

The classes and objects participating in this pattern include:

• Target (ChemicalCompound)

  • defines the domain-specific interface that Client uses.

• Adapter (Compound)

  • adapts the interface Adaptee to the Target interface.

• Adaptee (ChemicalDatabank)

  • defines an existing interface that needs adapting.

• Client (AdapterApp)

  • collaborates with objects conforming to the Target interface.