Motivation
A class may expose its attributes (class variables) to manipulation when manipulation is no longer desirable, e.g. after construction. Using the private class data design pattern prevents that undesirable manipulation.
A class may have one-time mutable attributes that cannot be declared final. Using this design pattern allows one-time setting of those class attributes.
The motivation for this design pattern comes from the design goal of protecting class state by minimizing the visibility of its attributes (data).
Read more about this topic: Private Class Data Pattern, Standard Documentation
Famous quotes containing the word motivation:
“Self-determination has to mean that the leader is your individual gut, and heart, and mind or we’re talking about power, again, and its rather well-known impurities. Who is really going to care whether you live or die and who is going to know the most intimate motivation for your laughter and your tears is the only person to be trusted to speak for you and to decide what you will or will not do.”
—June Jordan (b. 1939)