## Name

Validate — Validates a message based on an expression

## Usage

The Validate pattern validates a message based on an expression. If the message evaluates to true, message processing continues. If the message evaluates to false, message processing stops and an `PredicateValidationException` is thrown.

The Validate pattern can be used anywhere in the route body.

## Properties

Table 104 describes the properties you can specify using the properties editor.

Table 104. Validate Properties

Name | Description
--- | ---
Expression | Specifies the expression used to validate the message.
language | Specifies the expression language used to process the expression.
Inherit Error Handler | Specifies whether the node should use the error handler configured for the route. The default is `Disabled`.
Id | Specifies a unique identifier for the endpoint. The Id can be used to refer to the endpoint in the Camel XML file.
Description | Specifies a text description for the node. This description is included in the generated XML file, but it is informational only. It is not used by Apache Camel.

## Related topics

Expression and Predicates Languages
Configuring the route editor