Sticky Load Balancer

Sticky mode for the Load Balancer EIP.

A stick mode means that a correlation key (calculated as Expression) is used to determine the destination. This allows routing all messages with the same key to the same destination.

Options

The Sticky Load Balancer eip supports 0 options, which are listed below.

Name	Description	Default	Type
correlationExpression	Required The correlation expression to use to calculate the correlation key.		ExpressionSubElementDefinition

Name

Description

Default

Type

correlationExpression

Required The correlation expression to use to calculate the correlation key.

ExpressionSubElementDefinition

Exchange properties

The Sticky Load Balancer eip has no exchange properties.

Examples

In this case, we are using the header myKey as correlation expression:

Java
XML

from("direct:start")
    .loadBalance().sticky(header("myKey"))
        .to("seda:x")
        .to("seda:y")
        .to("seda:z")
    .end();

<route>
<from uri="direct:start"/>
    <loadBalance>
       <stickyLoadBalancer>
           <correlationExpression>
               <header>myKey</header>
           </correlationExpression>
       </stickyLoadBalancer>
       <to uri="seda:x"/>
       <to uri="seda:y"/>
       <to uri="seda:z"/>
    </loadBalance>
</route>