# IQueryHandler

- File ID: file:ayj9r2:iqueryhandler-cs
- Path: NexusReader.Application/Abstractions/Messaging/IQueryHandler.cs
- Role: handler
- Layer: application

## Purpose

Declares an application-layer abstraction for handling queries (CQRS) where handlers return a FluentResults.Result<TResponse> via MediatR.

## Key Details

Thin application-layer abstraction that binds the project's IQuery<TResponse> concept to MediatR's IRequestHandler and FluentResults.Result for uniform asynchronous query handling.

## Symbols

- IQueryHandler: Declares an application-layer abstraction for handling queries (CQRS) where handlers return a FluentResults.Result<TResponse> via MediatR.
- Handle(): Implied contract method for handling a query and returning a Result-wrapped TResponse asynchronously (inherited from MediatR IRequestHandler).
- IQueryHandler: Generic interface representing a query handler that processes a TQuery and returns a Result-wrapped TResponse using MediatR semantics.

## Dependencies

- No resolved dependencies.

## Calls

- No resolved calls.

## Unresolved References

- dependency-target: FluentResults
- dependency-target: MediatR

## Coverage

- Symbols: 3
- Executable symbols: 1
- Executable symbols with control flow: 1
- Grounded edges: 3
- Unresolved references: 2
- Control-flow fragments: 1
- Unresolved jumps: 0
- Unsupported constructs: 0
- Control-flow coverage: 100%
- Required diagrams: 2
- Generated diagrams: 2

## Control Flow Fragments

- Handle: 4 nodes, 3 edges, 0 jumps, 0 unsupported constructs

## Diagrams

### IQueryHandler Neighborhood

```mermaid
flowchart LR
    class_daunpv_iqueryhandler("IQueryHandler")
    file_ayj9r2_iqueryhandler_cs("IQueryHandler")
    method_7ldigq_handle[["Handle()"]]
    type_tpv4sn_iqueryhandler[/"IQueryHandler"/]
```

### IQueryHandler Execution Overview

```mermaid
flowchart TD
    class_daunpv_iqueryhandler("IQueryHandler")
    method_7ldigq_handle[["Handle()"]]
    class_daunpv_iqueryhandler -->|contains| method_7ldigq_handle
```

## Diagram Validation

- Status: pass
