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The optional id attribute can be used to identify the iterator which created a particular split message when nested iterate mediators are used. This is particularly useful when aggregating responses of messages that are created using nested iterate mediators.

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Syntax

<iterate<iterate [sequential=(true | false)] [continueParent=(true | false)] [preservePayload=(true | false)] (attachPath="xpath")? expression="xpath">
   <target [to="uri"] [soapAction="qname"] [sequence="sequence_ref"] [endpoint="endpoint_ref"]>
     <sequence>
       (mediator)+
     </sequence>?
     <endpoint>
       endpoint
     </endpoint>?
   </target>+
</iterate>

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• Iterate ID - Can be used to identify messages created by the iterate mediator. Useful when defining nested iterate mediators.
• Sequential Mediation - Specifies whether split messages should be processed sequentially (True) or in parallel (False). Default value is "false" (parallel processing).
• Continue Parent - Specifies whether the original message should be continued or dropped.
  • True

  • False

    Info
    title Tip
    This is default to false.

• Preserve Payload - Specifies whether the original message should be used as a template when creating the split messages.
  • True

  • False

    Info
    title Tip
    This is default to false.

• Iterate Expression - XPath expression that matches the elements, which you want to split the message from.
• Attach Path - To form new messages, you can specify an XPath expression for elements that the split elements are attached to (as expressed in Iterate expression).

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• SOAP Action - The SOAP action of the message.
• To Address - The target endpoint address.
• Sequence - Mediates the message through a sequence. You can either pick a named sequence from the registry or define an anonymous sequence by adding mediators to the current Target mediator as children.

• Endpoint - Sends the message to an endpoint. Here you can pick a named endpoint from the registry or keep the endpoint as anonymous.

  Info
  title Tip
  You can add in the Endpoint panel that can be accessed from the Manage-> Mediation-> Endpoints menu in the left hand side menu bar.

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Example

<iterate expression="//m0:getQuote/m0:request" preservePayload="true"
         attachPath="//m0:getQuote"
         xmlns:m0="http://services.samples">
    <target>
        <sequence>
            <send>
                <endpoint>
                    <address
                        uri="http://localhost:9000/services/SimpleStockQuoteService"/>
                </endpoint>
            </send>
        </sequence>
    </target>
</iterate>

In this scenario, the Iterate Mediator splits the messages in to parts and processes them asynchronously.