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POSerialize an object with a List member
 

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  1. POSerialize an object with a List member
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    <p>Given the following classes:</p> <pre><code>public class Container { private List&lt;SomeData&gt; list; // public getter &amp; setter for list } public class SomeData { private String data; // public getter &amp; setter for data } </code></pre> <p>When I run the following code:</p> <pre><code>import java.beans.XMLEncoder; import java.io.FileOutputStream; SomeData someData1 = new SomeData(); SomeData someData2 = new SomeData(); someData1.setData("data1"); someData2.setData("data2"); List&lt;SomeData&gt; data = new ArrayList&lt;SomeData&gt;(); data.add(someData1); data.add(someData2); Container container = new Container(); container.setList(data); FileOutputStream os = new FileOutputStream("c:\test.xml"); XMLEncoder encoder = new XMLEncoder(os); encoder.writeObject(container); encoder.close(); </code></pre> <p>When I review 'test.xml', there is only data for the container object, and nothing for the SomeData objects in the list (i.e. the strings "data1" &amp; "data2"):</p> <pre><code>&lt;?xml version="1.0" encoding="UTF-8"?&gt; &lt;java version="1.6.0_22" class="java.beans.XMLDecoder"&gt; &lt;object class="Container"&gt; &lt;void property="container"&gt; &lt;object class="java.util.ArrayList"&gt; &lt;void method="add"&gt; &lt;object class="SomeData"/&gt; &lt;/void&gt; &lt;void method="add"&gt; &lt;object class="SomeData"/&gt; &lt;/void&gt; &lt;/object&gt; &lt;/void&gt; &lt;/object&gt; &lt;/java&gt; </code></pre> <p>How can I serialize 'container' and the SomeData objects stored in the list within 'container'?</p>
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    1. USskaffman
    1. USTERACytE
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    1. COWell, there is clearly something there, two instances of `SomeData`, but their fields are missing.
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      1. USbiziclop
    2. COFYI: this works fine on my machine. Also, I think your code is inconsistent with example output. In output you have property 'container' under Container, but in example code - the name of property is 'list'. So check your code for 'SomeData' fields setting.
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      1. USArturs Licis
    3. COYea - I created the above example by hand, so there may be errors. If it works fine on your machine, you mean you get the strings "data1" & "data2" in the xml? Is the code exactly the same as above, or did you tweak it?
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      1. USTERACytE
 

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