Adding key

The AddKey method is used to add the key. The values of this key are not unique in the Vault. It accepts a template parameter for the default key value. It is recommended to use an explicit.

Add key A with type int and default value 0.

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vlt.AddKey("A", 0);

Static error! The string type is not explicitly specified.

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vlt.AddKey("B", "Hello world!");

Add key B with type string and empty default value.

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vlt.AddKey<std::string>("B", "");

Adding unique key

Since the key is unique, it does not have a default value and it is required to explicitly specify the desired type.

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vlt.AddUniqueKey<std::size_t>("B");

To add a unique key to a Vault that already has records, you need to use the lambda function. This lambda is called for every existing record in the database. It accepts a VaultRecordRef with a record and a counter with a record number. The function should return the value of the unique key.

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vlt.AddUniqueKey<std::size_t>("C", [](const std::size_t& counter, const mvlt::VaultRecordRef&) -> std::size_t
{
    return 100 + counter;
});

Update key

Update the default value for the key

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vlt.UpdateKey("A", 1);

Remove key

Remove key from vault

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vlt.RemoveKey("A");