I've just added some explanation about this. Cheers
-- Dejan Bosanac http://www.ttmsolutions.com - get a free ActiveMQ user guide ActiveMQ in Action - http://www.manning.com/snyder/ Scripting in Java - http://www.scriptinginjava.net cmoulliard wrote: > Many thanks Dejan. > > It could be interesting to update the ajax.html page with the above text in > order to help all the users that we are ;) > > KR, > > Charles > > > Dejan Bosanac-3 wrote: > >> Hi Charles, >> >> stock portfolio example sends XML in a text message to the Ajax client. >> Therefore, you'll get the response like this (full body). >> >> <ajax-response> >> <response id='stocks' destination='topic://STOCKS.*' ><price >> stock='BEAS' bid='94.08395193508605' offer='94.17803588702112' >> movement='up'/></response> >> </ajax-response> >> >> the "message object" you see is just the <price ... /> xml text and >> getAttribute() is JavaScript way of handling XML tag attributes. >> So, there is no "definition" of message object, it's just what you send >> to the broker; text if it is a TextMessage or object.toString in case of >> object message. >> >> Also you can find _amq.js which contains the whole Ajax JavaScript logic >> here >> >> http://svn.apache.org/viewvc/activemq/trunk/activemq-web/src/main/resources/org/apache/activemq/web/_amq.js?view=markup >> >> Cheers >> >> -- >> Dejan Bosanac >> >> >> http://www.ttmsolutions.com - get a free ActiveMQ user guide >> >> ActiveMQ in Action - http://www.manning.com/snyder/ >> Scripting in Java - http://www.scriptinginjava.net >> >> >> >> >> cmoulliard wrote: >> >>> Hi, >>> >>> Additional question : What is the javascript class of the message >>> returned >>> (DOM, XMLHTTPResuest, ....) ? >>> >>> The existing doc does not help us because in the two example, we saw that >>> we >>> can use message.getAttribute or message.getChildNodes[0], ... ? >>> >>> KR, >>> >>> Charles Moulliard >>> >>> >>> cmoulliard wrote: >>> >>> >>>> Hi, >>>> >>>> I would like to know where the javascript object Message used by >>>> AJAX/ActiveMq in a HTML page is defined ? I see in the portfolio example >>>> that we can use the following method "message.getAttribute('stock')" to >>>> access part of the xml message returned by the queue engine through the >>>> MessageListenerServlet but I would like to know what are the methods / >>>> variables available for this message object (which is normally a mirror >>>> of >>>> the jax.jms.Message object) ? >>>> >>>> To be more precise, here is a copy/paste of the portfolio.js script of >>>> the >>>> example where message appears at the line _price: function(message) >>>> >>>> var priceHandler = { >>>> _price: function(message) { >>>> if (message != null) { >>>> var price = parseFloat(message.getAttribute('bid')) >>>> var symbol = message.getAttribute('stock') >>>> var movement = message.getAttribute('movement') >>>> if (movement == null) { >>>> movement = 'up' >>>> } >>>> >>>> var row = document.getElementById(symbol) >>>> if (row) { >>>> // perform portfolio calculations >>>> var value = asFloat(find(row, 'amount')) * price >>>> var pl = value - asFloat(find(row, 'cost')) >>>> >>>> // now lets update the HTML DOM >>>> find(row, 'price').innerHTML = fixedDigits(price, 2) >>>> find(row, 'value').innerHTML = fixedDigits(value, 2) >>>> find(row, 'pl').innerHTML = fixedDigits(pl, 2) >>>> find(row, 'price').className = movement >>>> find(row, 'pl').className = pl >= 0 ? 'up' : 'down' >>>> } >>>> } >>>> } >>>> }; >>>> >>>> function portfolioPoll(first) >>>> { >>>> if (first) >>>> { >>>> amq.addListener('stocks','topic://STOCKS.*',priceHandler._price); >>>> } >>>> } >>>> >>>> amq.addPollHandler(portfolioPoll); >>>> >>>> Remark : addtiaional question >>>> - Who will cal the function portfolioPoll(first) function ? >>>> - How is the parameter first which is a boolean setted ? >>>> >>>> KR, >>>> >>>> Charles Moulliard >>>> >>>> >>>> >>> ----- >>> Enterprise Architect >>> >>> Xpectis >>> 12, route d'Esch >>> L-1470 Luxembourg >>> >>> Phone +352 25 10 70 470 >>> Mobile +352 621 45 36 22 >>> >>> e-mail : [EMAIL PROTECTED] >>> web site : www.xpectis.com www.xpectis.com >>> My Blog : http://cmoulliard.blogspot.com/ >>> http://cmoulliard.blogspot.com/ >>> >>> >> >> >> > > > ----- > Enterprise Architect > > Xpectis > 12, route d'Esch > L-1470 Luxembourg > > Phone +352 25 10 70 470 > Mobile +352 621 45 36 22 > > e-mail : [EMAIL PROTECTED] > web site : www.xpectis.com www.xpectis.com > My Blog : http://cmoulliard.blogspot.com/ http://cmoulliard.blogspot.com/ >
