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In the variable definition, it is possible to specify just a "literal" value or an XPath expression over the payload. It is possible to even specify a registry key or a registry key combined with an XPath expression that selects the value of the variable. By using the key attribute of the variable, it is possible to bind an XML document located in the registry so that in the transformation, that too can be used. The name of the variable corresponds to the name of variable declaration in the XQuery script. The type of the variable must be a valid type defined by the JSR-000225 (XQJ API).
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The XQuery mediator is a content aware mediator. |
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A variable that value is calculated from the current message SOAP Payload using an expression. The value is of type"double" in this case.
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Description of the XQuery Mediator in WSO2 ESB. |