- TIBCO BusinessEvents®
- Standard
- Collections

# Collections.removeAll()

## Signature

`boolean removeAll ( Object collection, Object collection2 )`

## Domain

ACTION

## Description

Removes from this collection all of its elements that are contained in the specified collection.

## Parameters

Name | Type | Description
--- | --- | ---
`collection` | `Object` | The Collection object
`collection2` | `Object` | Collection containing elements to be removed from this collection

## Returns

Type | Description
--- | ---
`boolean` | true, If this collection changed as a result of the call

## Cautions

none