Chapter 21: Problem 1

What are the differences and similarities between objects and literals in the ODMG Object Model?

Short Answer

Expert verified

Objects in the ODMG Object Model represent real entities with attributes and behaviors, while literals represent fixed values without references to other objects. The differences lay in the fact that objects have states and behaviors, and can perform operations, while literals do not. The similarities are that both objects and literals are used to model real-world situations and hold data, and both can serve as return types or parameters in operations.

Step by step solution

Define Objects and Literals

An object is an instance of a class and represents a real-world entity in the ODMG Object Model. It has attributes and perform operations. A literal, on the other hand, is a fixed value in a program that doesn't contain references to other objects. It represents simple values such as numbers, strings or Boolean values.

Differences between Objects and Literals

Objects and literals differ in several ways. Objects have states and behaviors, while literals do not, they only represent fixed values. Objects can have methods and execute procedures, whereas literals cannot. Objects may contain references to other objects, while literals do not.

Similarities between Objects and Literals

Objects and literals are both essential elements of the ODMG Object Model. They are used to model real-world situations and hold data. Moreover, both can be used as return types and parameters in operations.

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What are the differences and similarities between objects and literals in the ODMG Object Model?

Short Answer

Step by step solution

Define Objects and Literals

Differences between Objects and Literals

Similarities between Objects and Literals

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