OCLOperators Default
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The syntax for using the Default operator is as follows: | The syntax for using the Default operator is as follows: | ||
context ClassName | context ClassName | ||
self.propertyName = defaultValue | |||
Here, "ClassName" refers to the name of the class, "propertyName" refers to the name of the property or attribute, and "defaultValue" refers to the default value that is assigned to the property if no other value is provided. | Here, "ClassName" refers to the name of the class, "propertyName" refers to the name of the property or attribute, and "defaultValue" refers to the default value that is assigned to the property if no other value is provided. | ||
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For example, consider a class named "Person" that has a property named "age". We can use the Default operator to provide a default value of 18 for the "age" property, like this: | For example, consider a class named "Person" that has a property named "age". We can use the Default operator to provide a default value of 18 for the "age" property, like this: | ||
context Person | context Person | ||
self.age = 18 | |||
This means that if no age is explicitly assigned to a person object, it will automatically be set to 18. | This means that if no age is explicitly assigned to a person object, it will automatically be set to 18. | ||
[[Category:OCL General Operators]] | [[Category:OCL General Operators]] | ||
Revision as of 05:43, 28 April 2023
The Default operator is used to provide a default value for a property or attribute of a class.
The syntax for using the Default operator is as follows:
context ClassName self.propertyName = defaultValue
Here, "ClassName" refers to the name of the class, "propertyName" refers to the name of the property or attribute, and "defaultValue" refers to the default value that is assigned to the property if no other value is provided.
For example, consider a class named "Person" that has a property named "age". We can use the Default operator to provide a default value of 18 for the "age" property, like this:
context Person self.age = 18
This means that if no age is explicitly assigned to a person object, it will automatically be set to 18.
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