> ## Documentation Index
> Fetch the complete documentation index at: https://docs.cow.bleu.builders/llms.txt
> Use this file to discover all available pages before exploring further.

# IValueFactory

> API reference for the IValueFactory interface that provides standardized on-chain value retrieval.

# IValueFactory

The `IValueFactory` interface provides a standardized way to retrieve dynamic on-chain values at runtime within `ComposableCoW`'s programmatic order system.

## Key Function

```solidity theme={null}
function getValue(bytes calldata data) external view returns (bytes32 value);
```

This accepts implementation-specific configuration and returns a computed `bytes32` value.

## Primary Use Cases

* **Temporal data**: Block timestamps and epoch calculations
* **Price information**: Oracle prices and exchange rates
* **Dynamic parameters**: Portfolio balances and collateralization ratios

## Implementation Examples

### CurrentBlockTimestampFactory

Returns `block.timestamp` as a `bytes32` value.

### BlockNumberFactory

Returns `block.number` as a `bytes32` value.

### ChainlinkPriceFactory

Fetches the latest oracle price from a Chainlink price feed.

### BalanceFactory

Queries token balances for specific addresses.

### DynamicStrikeFactory

Calculates market-adjusted strike prices based on current oracle data.

## Critical Requirements

* Factories should maintain **view functions only** and avoid state modifications
* Validate external oracle data
* Optimize for gas efficiency