There are three different two mappings for a Slice dictionary, depending on its key and value type:
| Key Type | Value Type | Mapped Type | Comments | |||
|---|---|---|---|---|---|---|
string, enum or numeric | Any | containers.Map | Enumeration keys must be converted to integers. | |||
struct | Any | Native struct array | containers.Map does not support user-defined key types.struct | class | Ice.StructArrayHandle | Maps to a handle type to support the Ice run time's unmarshaling requirements. |
The mapping generates a class with the same name as the dictionary. This class provides one useful function for applications: a new function that returns an empty instance of the mapped type.
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We recommend using the new function to reduce the possibility of run-time errors.
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Mapping to struct array
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Each element of the struct array must have key and value fields whose types are compatible with those of the mapped types for the Slice dictionary's key and value.
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Mapping to Ice.StructArrayHandle
A dictionary with a structure key type and a class value type maps to Ice.StructArrayHandle. As its name implies, this simple class derives from handle and has a single member that is a struct array:
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classdef StructArrayHandle < handle
properties
array
end
end |
You will use the array member as described above for the struct array mapping.
Consider this example:
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struct ID
{
string symbol;
string exchange;
}
class Quote
{
double price;
string currency;
}
dictionary<ID, Quote> Quotes; |
We can construct this dictionary in MATLAB as follows:
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| title | MATLAB |
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value
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.
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