i am new to xquery and i am using it with Saxon on a derivative of FpML that is specific to my organisation ,and called IBML.

i have written a very basic xquery function which is here

xquery version "1.0";

declare function local:order-val($po as element(trade))
as element()* {
return 
$po/*:tradeHeader

};
local:order-val(//*:trade) 

The actual xml(ibml) that i am running this query is

<?xml version="1.0" encoding="UTF-8"?>
<FpML xmlns="http://www.fpml.org/2005/FpML-4-2" 
xmlns:ibml="http://ibml.jpmorgan.com/2005" 
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
xsi:schemaLocation="http://ibml.jpmorgan.com/2005 C:/software/ibml141/IBML-1-4-1/xsd/IBML-1-4-1.xsd"
xsi:type="ibml:CreateTradeRequest" 	
version="4-2"
ibmlVersion="1-1">	
<header>
<conversationId 
conversationIdScheme="http://www.jpmorgan.com/coding-scheme/conversationId">EquityShare987</conversationId>
<messageId 
messageIdScheme="http://www.jpmorgan.com/coding-scheme/messageId">EquityShare456a789b</messageId>
<sentBy 
partyIdScheme="http://www.jpmorgan.com/coding-scheme/partyId">msdw</sentBy>
<creationTimestamp>2000-08-01T08:57:00-00:00</creationTimestamp>
</header>

<trade>
<tradeHeader>
<partyTradeIdentifier>
<partyReference href="PartyA"/>
<tradeId 
tradeIdScheme="http://www.PartyA.com/coding-scheme/tradeId">1234</tradeId>
</partyTradeIdentifier>
<tradeDate id="TradeDate">2005-07-13</tradeDate>
</tradeHeader>
<ibml:equityContract>
<productType 
productTypeScheme="http://ibml.jpmorgan.com/coding-scheme/product-type">Equity</productType>
<buyerPartyReference href="PartyB"/>
<sellerPartyReference href="PartyA"/>
<ibml:numberOfUnits>10000</ibml:numberOfUnits>
<ibml:unitPrice>
<currency>USD</currency>
<amount>78.20</amount>
</ibml:unitPrice>
<ibml:settlementDate>				
<relativeDate>
<periodMultiplier>3</periodMultiplier>
<period>D</period>
<dayType>Business</dayType>
<businessDayConvention>NONE</businessDayConvention>
<businessCenters>
<businessCenter>EUTA</businessCenter>
</businessCenters>
<dateRelativeTo href="TradeDate"/>
</relativeDate>
</ibml:settlementDate>
<ibml:settlementCurrency>USD</ibml:settlementCurrency>
<ibml:equity>
<instrumentId 
instrumentIdScheme="http://www.reuters.com/coding-scheme/instrumentid">STM-FP</instrumentId>
<description>STMicroelectronics N.V. ordinary shares</description>
<exchangeId 
exchangeIdScheme="http://www.fpml.org/schemes/4.1/exchangeId">NSE</exchangeId>
</ibml:equity>
</ibml:equityContract>
</trade>

<ibml:party id="PartyA">
<partyId>Party A</partyId>
</ibml:party>
<ibml:party id="PartyB">
<partyId>Party B</partyId>
</ibml:party>

</FpML>

i get this error from saxon

Error on line 6 column 3 
XPST0003: XQuery syntax error in #...as element()* { return $po#:
expected "}", found "$"
Exception in thread "main" net.sf.saxon.trans.StaticError: One or more static errors were reported during query analysis
at net.sf.saxon.query.QueryParser.parseQuery(QueryParser.java:260)
at net.sf.saxon.query.QueryParser.makeXQueryExpression(QueryParser.java:103)
at net.sf.saxon.query.StaticQueryContext.compileQuery(StaticQueryContext.java:475)
at net.sf.saxon.query.StaticQueryContext.compileQuery(StaticQueryContext.java:505)
at Test.main(Test.java:62)

Can some one pls help with this.I am new to xquery and have hit this roadblock.

Hi Chetan,

an XQuery function expression evaluates to what is provided within the
function’s body, i.e. between the curly brackets. So the function does
evaluate to something and not return something. Get rid of the ‘return’.

Regards,
Juliane.