57 lines
3.7 KiB
Markdown
57 lines
3.7 KiB
Markdown
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---
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source_files:
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- Common/DTS.CommonCore/Base/Model/BaseModel.cs
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generated_at: "2026-04-16T02:51:14.177689+00:00"
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model: "Qwen/Qwen3-Coder-Next-FP8"
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schema_version: 1
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sha256: "ed3fc24e01d7b3b1"
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---
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# Model
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### 1. **Purpose**
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`BaseModel<TModel>` is an abstract base class intended to provide foundational functionality for model objects within the `DTS.Common.Base` namespace. It encapsulates common state—specifically, a `Model` property of generic type `TModel` and an `IsSaved` flag indicating persistence status—and inherits from `BasePropertyChanged`, presumably to support property change notifications (e.g., for UI binding). Its role is to standardize model representation and lifecycle tracking across derived model types in the codebase.
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---
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### 2. **Public Interface**
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- **`public TModel Model { get; set; }`**
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Gets or sets the underlying model object. The type `TModel` is constrained to be a reference type (`class`). This property holds the actual data payload for the model instance.
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- **`public bool IsSaved { get; private set; }`**
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Gets a read-only flag indicating whether the model has been persisted (e.g., saved to a database or backend). The setter is `private`, meaning only code within `BaseModel<TModel>` (e.g., derived classes or internal logic) can update this state.
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- **`public BaseModel()`**
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Public parameterless constructor for the abstract base class. Allows instantiation of concrete derived types. (Note: The class is `abstract`, so direct instantiation is not possible—this constructor is only invoked via derived classes.)
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---
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### 3. **Invariants**
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- `TModel` must be a reference type (enforced by `where TModel : class`).
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- `IsSaved` is initialized to `false` by default (C# default for `bool`) and can only be modified internally (via `private set`). External code can read but not directly set this flag.
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- The class inherits from `BasePropertyChanged`, implying that property change notifications (e.g., `INotifyPropertyChanged`) are expected to be supported, though the specific implementation details are not visible in this file.
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---
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### 4. **Dependencies**
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- **Depends on**:
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- `DTS.Common.Base.BasePropertyChanged` (base class; assumed to implement `INotifyPropertyChanged` or similar).
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- `DTS.Common.Base.IBaseModel` (interface implemented explicitly via `IBaseModel`).
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- The `TModel` type parameter is constrained to `class`, but no other constraints are specified.
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- **Depended on by**:
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- Concrete model classes in the codebase that derive from `BaseModel<TModel>` (e.g., `public class CustomerModel : BaseModel<Customer>`).
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- Likely used by UI layers or services that interact with model instances via `IBaseModel` (e.g., for polymorphic handling of model state).
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---
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### 5. **Gotchas**
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- **`IsSaved` is not automatically managed**: The flag is exposed but has no built-in logic to update it (e.g., on save operations). Consumers must manually set `IsSaved = true` (e.g., in derived classes or service layers), which could lead to inconsistencies if overlooked.
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- **No validation or cloning support**: The class provides no hooks for validation, deep copying, or immutability—these must be implemented in derived classes if needed.
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- **`Model` property is nullable**: Since `TModel` is unconstrained beyond `class`, `Model` may be `null`. Consumers must handle null cases explicitly.
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- **No documentation for `IBaseModel` interface**: Its contract (e.g., members like `IsSaved`) is not visible here, so behavior relies on external definitions.
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- **`BasePropertyChanged` is not defined here**: Its behavior (e.g., how property change notifications are raised) is unknown from this file alone.
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*None identified from source alone.*
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