Re: [Simpleweb-Support] Xml To Java Object conversion

[Niall G. <gal...@ya...>]

This is caused by erasure, T is not available at runtime. Java does not allow it.

--- On Tue, 23/4/13, Hardik Upadhyay <hup...@as...> wrote:

> From: Hardik Upadhyay <hup...@as...>
> Subject: [Simpleweb-Support] Xml To Java Object conversion
> To: "sim...@li..." <sim...@li...>
> Received: Tuesday, 23 April, 2013, 5:31 AM
> 
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> I am converting xml file to java object using
> simpleframework. I am using generics since my xml's
> internal nodes gets changing. But simpleframework throws an
> error while converting. Here is my sample code: 
> @Root(name = "searchresult", strict = false) 
> public class ResponseVO<T> 
> { 
>    
> @ElementList(entry = "document", inline = true) 
>    
> public List<T> elementVOList = new ArrayList<T>(); 
>    
>    
> public List<T> 
> getElementsVOList() 
>    
> { 
>        
> return elementVOList; 
>    
> } 
>    
>    
> public void setElementsVOList(List<T>list) 
>    
> { 
>        
> elementVOList = list; 
>    
> } 
> } 
> ResponseVO is container for various other VOs as
> bellow: 
> @Root(name
> =
> "document", strict
> =
> false) 
> public class Projects_Display_VO 
> { 
>    
>    
> @Element(name = "projectname") 
>    
> private String projectName; 
>    
>    
>    
> @Attribute(name = "id") 
>    
> private int tmpid; 
>    
>    
> public int getTmpid() 
>    
> { 
>        
> return tmpid; 
>    
> } 
>    
>    
> public void setTmpid(int tmpid) 
>    
> { 
>        
> this.tmpid = tmpid; 
>    
> } 
>    
> /** 
>     
> * ProjectId 
>     
> */ 
>    
>    
> @Element(name = "projectid") 
>    
> private String projectID; 
>    
>    
>    
> public String getProjectName() 
>    
> { 
>        
> return projectName; 
>    
> } 
>    
>    
> public void setProjectName(String projectName) 
>    
> { 
>        
> this.projectName = projectName; 
>    
> } 
>    
>    
> public int getProjectID() 
>    
> { 
>        
> return Integer.parseInt(projectID); 
>    
> } 
>    
>    
> public void setProjectID(String projectID) 
>    
> { 
>        
> this.projectID = projectID; 
>    
> } 
> } 
> And the XML file is As bellow: 
> <searchresult> 
>   <query>id:(PROJ2 PROJ6)</query> 
>   <document id="0"> 
>    
> <projectid>2</projectid> 
>    
> <projectname>Redundant Demo Project</projectname> 
>    
> <doctype>Projects</doctype> 
>    
> <summary>||Demo Project</summary> 
>    
> <title>Redundant Demo Project</title> 
>   </document> 
>  
> <document
> id="1"> 
>     <projectid>6</projectid> 
>     <projectname>Redundant Demo Project2</projectname> 
>    
> <doctype>Projects</doctype> 
>    
> <summary>||Main terminal links.</summary> 
>    
> <title>Terminal 5 Project</title> 
>   </document>   
> </searchresult> 
> The code for conversion is as bellow: 
> ResponseVO<Projects_Display_VO> resp = (ResponseVO<Projects_Display_VO>)  SerializationUtil.deserialize(ResponseVO.class, reader); 
> Here i am using serializer from simpleframework. But it
> throws following error 
> Exception::Attribute 'id' does not have a match in class java.lang.Object at line 5 
> org.simpleframework.xml.core.AttributeException: Attribute 'id' does not have a match in   class java.lang.Object at line 5 
> at org.simpleframework.xml.core.Composite.readAttribute(Composite.java:555) 
> at org.simpleframework.xml.core.Composite.readAttributes(Composite.java:474) 
> at org.simpleframework.xml.core.Composite.readSection(Composite.java:387 
> 
> 
> 
> 
>    
> I don’t understand
> whats going wrong here. Does simpleframework supports
> generics ? Or am I doing something wrong ? 
>    
> Best Regards 
>    
> Hardik Upadhyay
> 
>    
>    
> 
> 
> 
> 
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