---
title: IReserveQueryProvider
summary: API reference for IReserveQueryProvider.
status: draft
owner: SAIF.Core documentation team
last_reviewed: 2026-09-24
library: SAIF.Data
reference_type: package
---

# IReserveQueryProvider

Contract implemented by `ReserveQueryProvider`.

## Purpose
- Defines the members that `ReserveQueryProvider` must provide to callers of this abstraction.

## Context
- Namespace: `SAIF.Data.Queries`
- Assembly/package: `SAIF.Data`

## Public members
| Member | Signature | Purpose |
| --- | --- | --- |
| BillQueries | `IBillQueryProvider BillQueries { get; }` | Value of bill queries exposed by this type.* |
| GetLatestIncurredCost | `IncurredCostHistory GetLatestIncurredCost(long claimId)` | Retrieves latest incurred cost.* |
| GetIncurredCostForDate | `IncurredCostHistory GetIncurredCostForDate(long claimId, DateTime effectiveDate)` | Retrieves incurred cost for date.* |
| GetTotalPaidToDateForCategory | `decimal GetTotalPaidToDateForCategory(long claimId, string costCategory)` | Retrieves total paid to date for category.* |

## Behavioral notes
- As an interface, this type defines no executable behavior of its own; behavior is determined by its implementation(s).*

## Constraints and usage notes
- Callers should depend on this interface rather than the concrete implementation(s) (`ReserveQueryProvider`) to preserve testability.*

> **Note:** Statements marked with * were inferred from code structure, naming conventions, or contextual evidence where direct confirmation was not available in source artifacts. Statements marked with ** could not be confirmed; treat as unknown until verified.

## Sources
- `Data/SAIF.Data/Queries/IReserveQueryProvider.cs`