36 lines
981 B
Plaintext
36 lines
981 B
Plaintext
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= Attributes (and inheritance)
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[source]
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----
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class Customer {
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Integer id;
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String name;
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Address address;
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int quota;
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}
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class DomesticCustomer extends Customer {
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String taxId;
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String attr1;
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String attr2;
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}
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class ForeignCustomer extends Customer {
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String vat;
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String attr3;
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String attr4;
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}
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----
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The general idea is that the attributes are ordered alphabetically, super attributes first. Subtypes are sorted
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depth-first and the attributes are sorted alphabetically within each sub-type. So the order of the attributes
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depends on where we start.
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Starting from Customer we have: `[address, name, quota, attr1, attr2, taxId, attr3, attr4, vat]`
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Starting from DomesticCustomer we have: `[address, name, quota, attr1, attr2]`
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Starting from ForeignCustomer we have: `[address, name, quota, attr3, attr4, vat]`
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This is why we cannot really have the position be an inherent part of the attribute itself - it changes depending on
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where we start.
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