How do you really want to display your info?
Provide an example...
2012/4/25 Az Madu <azm...@gmail.com>
> Hi guys,
>
> I'm trying to construct a table (Tapestry 5) unsuccessfully so far, and
> have been scouring the forums (Nabble) and elswhere for examples on
> building a table. So far it appears that it's only possible using a single
> source (is that the only way?) either for a Loop, or Grid as demonstrated
> on Jumpstart (I'm not using EJB).
>
> The data I want to display has come from a Json object which I've
> decoded/parsed and have used Jackson Tree structure to read the data and it
> contains elements that I've read into Lists of either String, Integer and
> Long as follows:
>
>
> package com.blah.blah.blah.services;
>
> @Entity
> public class Decode implements Serializable{
>
> private DefaultHttpClient httpClient = new DefaultHttpClient();
> private final static ObjectMapper mapper = new ObjectMapper();
>
> @Column
> private List<Integer> position;
> @Column
> private List<String> uuid;
>
>
> public void setPosition(List<Integer> positionList) {
> this.position = positionList;
> }
> public List<Integer> getPosition() {
> return position;
> }
>
> public List<String> getUuid(){
> return uuid;
> }
> public void setUuid(List<String> uuid){
> this.uuid = uuid;
> }
>
> public URL parseJson(String url){
> ...........
> ...........Http stuff here
> ...........
> try{
> .......
> .......I/O stuff here
> .......
> JsonNode root = fileNode.get("items");
>
> Iterator<JsonNode> i = root.iterator();
> while (i.hasNext()) {
> JsonNode element = i.next();
> // get the elements
> int position = element.get("position").asInt();
> String uuid = element.get("entrant").get("id").asText();
> ...................
>
> List<Integer> positionList = new ArrayList<Integer>();
> positionList.add(position);
> setPosition(positionList);
>
> List<String> uuidList = new ArrayList<String>();
> uuidList.add(uuid);
> setUuid(uuidList);
> ....................
>
> System.out.println("position: " + position + ", uuid" +
> uuid);
> }
> }
> }
>
> I have the relevant get/set methods for the above and I have a class page
> that I use to call this 'service' by way of an eventclick:
>
> package com.blah.blah.blah.pages
>
> public class Dostuff{
>
> private final String staticPage = "http://localhost:10065/blah/~.page";
>
> @Property
> Decode decode = new Decode();
>
> @SuppressWarnings("unused")
> @Property
> private List<Integer> position;
>
> @SuppressWarnings("unused")
> @Property
> private List<String> uuid;
>
>
> /**
> * @return
> * @throws MalformedURLException
> */
> URL onReturnURLViewPage() throws MalformedURLException {
> return decode.parseJson(staticPage);
> }
> }
>
>
> Dostuff.tml
> <html t:type="layout" title="Test"
> xmlns="http://www.w3.org/1999/xhtml";
> xmlns:t="http://tapestry.apache.org/schema/tapestry_5_1_0.xsd";
> xmlns:p="tapestry:parameter">
>
> <p>Welcome to Test ${userName}</p>
> <p>
> [
> <a t:type="eventlink" t:event="returnURLViewPage" href="#">View
> Page</a>
> ]
> </p>
> <table class="grid">
> <thead>
> <tr>
> <th>Position</th>
> <th>UUID</th>
> <th>Result</th>
> </tr>
> </thead>
> <tbody>
> <tr t:type="Loop" t:source="position" t:value="decode">
> <td>position</td>
> </tr>
> <tr t:type="Loop" t:source="uuid" t:value="decode">
> <td>${uuid}</td>
> </tr>
> </tbody>
> </table><br/>
>
> Following the examples on 'jumpstart' is really helpful but I've hit a
> brick wall with this since I'm not using EJB (why such a complicated
> example) and also my data from a json object is retireved as either String,
> Integer or Long and so on and therefore I end up with multiple List<T>
> objects which all can be sources.
>
>
> Can I use these all as I've done because if I try to retireve all my data
> as List<String> objects (I have tried this) then I'll get other problems
> such as Coercion Exceptions or othere errors that I don't know what they
> mean (I should have posted them here but it would make this post horrible
> to read) but as it stands right now the System.out prints exactly what I
> expect but I get no table being rendered. I only have one head so please
> can someone stop me from bashing it in any more than I have done?
>
> Oh and just to clarify (if not already clear) my Json object can and will
> possibly contain hundreds of records from which I will need to parse and
> extract the same data types (String, Long, Integer etc) over and over and
> although they can be read as Strings that's not what their type is.
>
> Thanks in advance for any assistance/replies
>
> Regards
>
> Az
>
