# <a id="Aeon_Acquisition_StateRecoverySubject"></a> Class StateRecoverySubject

Namespace: [Aeon.Acquisition](Aeon.Acquisition.md)  
Assembly: Aeon.Acquisition.dll  

```csharp
public class StateRecoverySubject : SubjectBuilder, IExpressionBuilder, INamedElement
```

#### Inheritance

[object](https://learn.microsoft.com/dotnet/api/system.object) ← 
ExpressionBuilder ← 
VariableArgumentExpressionBuilder ← 
SubjectExpressionBuilder ← 
SubjectBuilder ← 
[StateRecoverySubject](Aeon.Acquisition.StateRecoverySubject.md)

#### Implements

IExpressionBuilder, 
INamedElement

#### Inherited Members

SubjectBuilder.BuildSubject\(Expression\), 
SubjectBuilder.Build\(IEnumerable<Expression\>\), 
SubjectExpressionBuilder.Name, 
VariableArgumentExpressionBuilder.SetArgumentRange\(int, int\), 
VariableArgumentExpressionBuilder.ArgumentRange, 
ExpressionBuilder.Build\(IEnumerable<Expression\>\), 
ExpressionBuilder.ToString\(\), 
ExpressionBuilder.Unwrap\(ExpressionBuilder\), 
ExpressionBuilder.GetWorkflowElement\(ExpressionBuilder\), 
ExpressionBuilder.GetVisualizerElement\(ExpressionBuilder\), 
ExpressionBuilder.GetVisualizerMappings\(ExpressionBuilder\), 
ExpressionBuilder.FromWorkflowElement\(object, ElementCategory\), 
ExpressionBuilder.GetElementDisplayName\(Type\), 
ExpressionBuilder.GetElementDisplayName\(object\), 
ExpressionBuilder.SelectMembers\(Expression, string\), 
ExpressionBuilder.GetArgumentAccess\(IEnumerable<Expression\>, string\), 
ExpressionBuilder.ArgumentRange, 
[object.ToString\(\)](https://learn.microsoft.com/dotnet/api/system.object.tostring), 
[object.Equals\(object\)](https://learn.microsoft.com/dotnet/api/system.object.equals\#system\-object\-equals\(system\-object\)), 
[object.Equals\(object, object\)](https://learn.microsoft.com/dotnet/api/system.object.equals\#system\-object\-equals\(system\-object\-system\-object\)), 
[object.ReferenceEquals\(object, object\)](https://learn.microsoft.com/dotnet/api/system.object.referenceequals), 
[object.GetHashCode\(\)](https://learn.microsoft.com/dotnet/api/system.object.gethashcode), 
[object.GetType\(\)](https://learn.microsoft.com/dotnet/api/system.object.gettype), 
[object.MemberwiseClone\(\)](https://learn.microsoft.com/dotnet/api/system.object.memberwiseclone)

## Methods

### <a id="Aeon_Acquisition_StateRecoverySubject_BuildSubject_System_Linq_Expressions_Expression_"></a> BuildSubject\(Expression\)

When overridden in a derived class, returns the expression
that creates the shared subject.

```csharp
protected override Expression BuildSubject(Expression expression)
```

#### Parameters

`expression` [Expression](https://learn.microsoft.com/dotnet/api/system.linq.expressions.expression)

The expression representing the observable input sequence.

#### Returns

 [Expression](https://learn.microsoft.com/dotnet/api/system.linq.expressions.expression)

The <xref href="System.Linq.Expressions.Expression" data-throw-if-not-resolved="false"></xref> that creates the shared subject.