- TIBCO BusinessEvents®
- Standard
- Instance
- PropertyAtom

# Instance.PropertyAtom.numHistoryValues()

## Signature

`int numHistoryValues(PropertyAtom pa)`

## Domain

ACTION, CONDITION, QUERY, BUI

## Description

This method returns how many history values exist for given property. The value is bounded by history size.

## Parameters

Name | Type | Description
--- | --- | ---
`pa` | `PropertyAtom` | The property to get the history value count on.

## Returns

Type | Description
--- | ---
`int` | Number of history values that exist.

## Cautions

none