- TIBCO BusinessEvents®
- Standard
- Instance
- Reflection

# Instance.Reflection.getPropertyArrayLength()

## Signature

`int getPropertyArrayLength(Concept instance, String name)`

## Domain

ACTION, CONDITION, QUERY, BUI

## Description

This method returns the length of a PropertyArray given the Concept instance and the property name. It returns -1 if the length can't be determined. e.g. no such propertyArray exception

## Parameters

Name | Type | Description
--- | --- | ---
`instance` | `Concept` | the concept instance
`name` | `String` | the propertyArray name

## Returns

Type | Description
--- | ---
`int` | The length of a PropertyArray.

## Cautions

none