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POIs it possible to write web-service that returns a collection of generic type? Spring 3
 

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  1. POIs it possible to write web-service that returns a collection of generic type? Spring 3
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    <p>In my db I have a number of entity classes and I run standart CRUD operations on them via Hibernate. Its not a problem to create generic dao class to make all main operations with classes. For example, in dao I have methods which look like this:</p> <pre><code>&lt;T&gt; List&lt;T&gt; loadAll(Class clazz) </code></pre> <p>Now I want to expose these methods to web-service client via Spring 3 operated web-service.</p> <p>The only way I see is to implement web-methods for all entities i.e. write a class that looks like... </p> <pre><code>class BookResponse { List&lt;BookEntity&gt; books; } </code></pre> <p>... and return this in corresponding web-method "BookResponse getAllBooks()". This will ruin my attemts to make a code simplier by using dao with generics. </p> <p>Is there are any other ways? How can I do this without implementing web-methods for ALL my entities? If generic web-service is not possible may be there are some other ways to resolve this task in a simple way?</p> <p>UPDATE: At the moment I am trying to implement a response class which should look like</p> <pre><code>public class ServiceResponse&lt;T&gt;{ @XmlElementWrapper( name = "data" ) @XmlElements( @XmlElement(name = "a", type = EntityA.class), @XmlElement(name = "b", type = EntityB.class) ) private List&lt;T&gt; data = new ArrayList&lt;T&gt;( ); //getters,setters } </code></pre> <p>So I want to be able to insert a list of any entities mapped with annotations to this response. This produces no erros, but the response given me by web-service is empty.</p>
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    1. USKutaBeach
    1. USKutaBeach
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    1. COwhat serialization are you going to use? is it going to be RESTful or wsdl-based web service?
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      1. POIs it possible to write web-service that returns a collection of generic type? Spring 3
      1. USsoulcheck
    2. COat the moment I use WSDL-based web-service
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      1. USKutaBeach
 

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