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namespace Connected.Entities.Annotations
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{
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[Flags]
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public enum ColumnPersistence
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{
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InMemory = 0,
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Read = 1,
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Write = 2,
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ReadWrite = 3
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}
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[AttributeUsage(AttributeTargets.Property | AttributeTargets.Class)]
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public sealed class PersistenceAttribute : Attribute
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{
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public ColumnPersistence Persistence { get; set; }
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public bool IsReadOnly => (Persistence & ColumnPersistence.Read) == ColumnPersistence.Read;
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public bool IsWriteOnly => (Persistence & ColumnPersistence.Write) == ColumnPersistence.Write;
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public bool IsReadWrite => (Persistence & ColumnPersistence.ReadWrite) == ColumnPersistence.ReadWrite;
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public bool IsVirtual => Persistence == ColumnPersistence.InMemory;
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}
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}
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