MDrivenStart:MDrivenStart Attributes

Attributes has simple types (one single value). The type of this simple value must be stated. Typically the type of an attribute is one these

String	A string with a max storable length
Text	A longer text of any size but not directly searchable
Integer	A number without decimals
Double	Any number
DateTime	Date and time
Boolean	Yes or No value
Blob	Binary data of any kind

Attributes can be nullable meaning that they then hold information that no value has been assigned. For Integers this mean that there is a clear distinction between zero and nothing.

Attributes are normally persistent (saved) - but non persistent(in memory) attributes are allowed as well.

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