Difference between revisions of "XCSG:Field"
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Revision as of 12:43, 5 March 2014
Specification
| Metaclass | Field |
|---|---|
| Extends | Feature, Variable |
| Description | A feature whose value is a part of the state of an object or class, e.g. an attribute or association |
| References | StructuralFeature [5, p. 2-14, Figure 2-5], [5, pp. 2-54, 2-69] |
| Tag | implicitRedefinition |
|---|---|
| Description | Does the field represent an implicit redefinition (e.g., to match a particular language semantics) rather than a redefinition explicitly specified by the user? |
| Tag | multiplicity |
|---|---|
| Description | The number of values that the feature may hold, typically specified as a range (min .. max) or ‘*’ (zero or more). In the common case in which the multiplicity is 1..1, the feature is a scalar. |
| Tag | ordering |
|---|---|
| Description | Are the values associated with the feature ordered? |
Language mappings
Field maps to the concept of a field in Java, and to the concept of a data member in C++. Fields may hold either data values (attributes) or pointers to other entities (which represent the ends of an association).
