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/**
* Provides support for enabling and configuring JSON.
* <p>
* Besides enabling JSON, the API also allows customization of the JSON format
* produced and consumed with JAXB beans.
* Such customization requires that an implementation of
* {@link javax.ws.rs.ext.ContextResolver} returns a configured
* {@link com.sun.jersey.api.json.JSONJAXBContext} instance.
*
* <p>For example, if the following two JAXB beans are defined:
* <blockquote><pre>
* <span style="font-weight:bold">@XmlRootElement</span>
* public class <span style="font-weight:bold">BeanOne</span> {
* public String name;
* public int number;
* }
*
* <span style="font-weight:bold">@XmlRootElement</span>
* public class <span style="font-weight:bold">BeanTwo</span> {
* public List<String> titles;
* }
* </pre></blockquote>
*
* And the following resource class uses the above JAXB beans:
*
* <blockquote><pre>
* @Path("beans")
* public class MyResource {
*
* @GET @Path("one") @Produces(MediaType.APPLICATION_JSON)
* public <span style="font-weight:bold">BeanOne</span> getOne() {
* BeanOne one = new BeanOne();
* one.name = "Howard";
* one.number = 3;
* return one;
* }
*
* @GET @Path("two") @Produces(MediaType.APPLICATION_JSON)
* public <span style="font-weight:bold">BeanTwo</span> getTwo() {
* BeanTwo two = new BeanTwo();
* two.titles = new ArrayList<String>(1){{add("Title1");}};
* return two;
* }
* </pre></blockquote>
*
* <p>
* Then, for the URI path <code>beans/one</code>, the following JSON will be
* produced:
* <blockquote><pre>
* {"name":"Howard","number":<span style="color:red">"</span>3<span style="color:red">"</span>}
* </pre></blockquote>
* However, it might be required that the JSON object named <code>number</code> have
* a non-String value <code>3</code>.
* <p>
* And, for the URI path <code>beans/two</code>, the following JSON will be
* produced:
* <blockquote><pre>
* {"titles":"Title1"}
* </pre></blockquote>
* However, it might be required that the JSON object named <code>titles</code>
* have a JSON array value <code><span style="color:red">[</span>"Title1"<span style="color:red">]</span></code>,
* since the <code>titles</code> field on the JAXB bean <code>BeanTwo</code>
* represents an array, thus enabling consuming of such JSON values the same way on
* the client side no matter how many elements the array contains.
*
* <p>The {@link com.sun.jersey.api.json.JSONJAXBContext} may be configured to enable
* such required production of JSON as described above in the following manner:
* <blockquote><pre>
* <span style="font-weight:bold">@Provider</span>
* public final class JAXBContextResolver <span style="font-weight:bold">implements ContextResolver<JAXBContext></span> {
*
* <span style="font-weight:bold">private final JAXBContext context;</span>
*
* private final Set<Class> types;
*
* private final Class[] cTypes = {BeanOne.class, BeanTwo.class};
*
* public JAXBContextResolver() throws JAXBException {
* this.context = new <span style="font-weight:bold">JSONJAXBContext</span>(<span style="font-weight:bold">JSONConfiguration.natural().build()</span>, cTypes);
* this.types = new HashSet(Arrays.asList(cTypes));
* }
*
* <span style="font-weight:bold">public JAXBContext getContext(Class<?> objectType)</span> {
* return (types.contains(objectType)) ? <span style="font-weight:bold">context</span> : null;
* }
* }
* </pre></blockquote>
*
* Then, the produced JSON would become: <code>{"name":"Howard","number":3}</code>
* and <code>{"titles":["Title1"]}</code> respectively for the URI paths
* <code>beans/one</code> and <code>beans/two</code>. Please note, that you do not need
* to configure this in much detail. Using {@link com.sun.jersey.api.json.JSONConfiguration.Notation#NATURAL} notation
* means that Jersey JSON processor will autamatically take care about numbers, booleans and arrays. This notation
* will probably become the default one for Jersey in one of the future releases.
*
* <p>For a complete set of supported properties, see
* {@link com.sun.jersey.api.json.JSONConfiguration.Builder}.
*/
package com.sun.jersey.api.json;