Object - Field (State)

Card Puncher Data Processing


The value of an object are saved in a field.

A field is known as:

  • a field in Java,
  • a property in Javascript…

They represent the state of the object

In data modeling, a property is seen as a field.

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Data System Architecture
Key Value (or Property)

Key value data (known also as Property) are value that have a direct relation with their key. They can be seen as a set of data modeling attribute. This kind of data is stored: in code as: an collection...
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An attribute is a property or characteristic of a primary element (entity, relationship) one-to-one colorentity... The values for each attribute are defined in terms of properties. An attribute is...
Less Than Or Equal Relation
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Card Puncher Data Processing
Object - (Mutator|Setter|Set) method

Mutators are methods. Their role are to set the values of an object's state The usages are: central point of control for the input in order to reject bad data change detection (if the value is not...
Card Puncher Data Processing
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in code is called a class. The type of an object is its class. A Class classifies a set of objects and specifies the features/members that: characterize the structure (field) and behavior of those...
Card Puncher Data Processing
What is the visibility of language elements (ie Private vs Public)?

The visibility is defined by the private and public keywords where: Private elements are hidden from the outside world. Public elements becomes the API that is accessible from the outside. Private...

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