- TIBCO BusinessEvents®
- Standard
- Temporal
- History

# Temporal.History.howMany()

## Signature

`int howMany(PropertyAtom pa, long stime, long etime, boolean bound_by_stime)`

## Domain

ACTION, CONDITION, QUERY, BUI

## Description

This method returns how many values exist in interval [stime, etime].

## Parameters

Name | Type | Description
--- | --- | ---
`pa` | `PropertyAtom` | The property to check for the value of.
`stime` | `long` | start time of the interval, 0 means use oldest value's timestamp as start time.
`etime` | `long` | end time of the interval, 0 means use newest value's timestamp as end time.
`bound_by_stime` | `boolean` | true implies for stime less than oldest value's time stamp[t0] use t0.

## Returns

Type | Description
--- | ---
`int` | no of values that exist in interval [stime, etime].

## Cautions

If PropertyAtom does not have enough timeline, the oldest value starts it.