# Class PersistenceProviderQueryException

OptimaJet.Workflow.Core.Fault.PersistenceProviderQueryException

Represents an exception raised for persistence-provider query failures and carries flags that describe whether such failures can be retried or recovered.

Namespace: [OptimaJet.Workflow.Core.Fault](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Fault/)

```csharp
public class PersistenceProviderQueryException : Exception, ISerializable
```

## Type Hierarchy

-   [Exception](https://learn.microsoft.com/dotnet/api/system.exception)
    -   PersistenceProviderQueryException Current type
        -   Implemented interfaces
            -   [ISerializable](https://learn.microsoft.com/dotnet/api/system.runtime.serialization.iserializable)

## Constructors

`public PersistenceProviderQueryException(bool isRetryAllowed, bool isRetrievableError, Exception exception)` 

Initializes a new instance of the [PersistenceProviderQueryException](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Fault/PersistenceProviderQueryException/) class.

### Parameters

| Name | Type | Description |
| --- | --- | --- |
| `isRetryAllowed` | `Boolean` | A value that indicates whether a retry is allowed. |
| `isRetrievableError` | `Boolean` | A value that indicates whether the error is retrievable. |
| `exception` | `Exception` | The exception that is wrapped as the inner exception. |

## Properties

`public bool IsRetryAllowed { get; }` 

Gets a value indicating whether retry logic should treat this failure as retryable.

`public bool IsRetrievableError { get; }` 

Gets a value indicating whether the error is considered retrievable.

[Previous ParameterNotFoundException](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Fault/ParameterNotFoundException/) [Next PersistenceProviderQueryExceptionExtensions](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Fault/PersistenceProviderQueryExceptionExtensions/)