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POHow to implement the ModelData interface in ext gwt?
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  1. POHow to implement the ModelData interface in ext gwt?
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    copied!<p>I am trying to use an EditorGrid in a project that I am working on. I am using EditorGrid grid = new EditorGrid (...) </p> <p>ClassGrade is an object that contains the name, grade (as a Grade object), and credit hours for a class. </p> <p>However, ClassGrade must implement ModelData. When I tried to implement the interface, there are a few methods that I am not sure how to correctly implement. </p> <pre><code>@Override public &lt;X&gt; X get(String property) { if (property.equals("name")) return this.getClassName(); if (property.equals("hours")) return this.getHours(); if (property.equals("grade")) return this.getGrade(); return null; } @Override public Map&lt;String, Object&gt; getProperties() { Map&lt;String, Object&gt; propMap = new HashMap&lt;String, Object&gt;(); propMap.put("grade", this.getGrade()); propMap.put("hours", this.getHours()); propMap.put("name", this.getClassName()); return propMap; } @Override public Collection&lt;String&gt; getPropertyNames() { ArrayList&lt;String&gt; props = new ArrayList&lt;String&gt;(); props.add("grade"); props.add("hours"); props.add("name"); return props; } @Override public &lt;X&gt; X remove(String property) { // TODO Auto-generated method stub return null; } @Override public &lt;X&gt; X set(String property, X value) { // TODO Auto-generated method stub return null; } </code></pre> <p>I dont know what to do for the get, remove, and set methods, because I do not know what the X means. I tried using</p> <pre><code> @Override public &lt;X&gt; X get(String property) { if (property.equals("name")) return this.getClassName(); if (property.equals("hours")) return this.getHours(); if (property.equals("grade")) return this.getGrade(); return null; } </code></pre> <p>but that didn't work because the return was not of type X. What am I doing wrong and how do I get this to work? </p>
 

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