Java XML JAXB Unmarshaller createUnmarshaller(Class clazz)

Description

Creates a unmarshaller for the given class.

License

Open Source License

Parameter

Parameter	Description
clazz	class for which the unmarshaller is to be created

Exception

Parameter	Description
Exception	if an error was encountered while creating the Unmarshaller object

Return

Marshaller

Declaration

public static Unmarshaller createUnmarshaller(Class<?> clazz) throws Exception 

Method Source Code

//package com.java2s;
/**//w ww.  j a v  a2  s .  co  m
 * The MIT License
 * Copyright (c) 2015 Estonian Information System Authority (RIA), Population Register Centre (VRK)
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */

import javax.xml.bind.JAXBContext;

import javax.xml.bind.Unmarshaller;
import java.util.HashMap;
import java.util.Map;

public class Main {
    private static final Map<Class<?>, JAXBContext> CTX_CACHE = new HashMap<>();

    /**
     * Creates a unmarshaller for the given class.
     * @param clazz class for which the unmarshaller is to be created
     * @return Marshaller
     * @throws Exception if an error was encountered while creating the Unmarshaller object
     */
    public static Unmarshaller createUnmarshaller(Class<?> clazz) throws Exception {
        return getJAXBContext(clazz).createUnmarshaller();
    }

    private static JAXBContext getJAXBContext(Class<?> clazz) throws Exception {
        if (CTX_CACHE.containsKey(clazz)) {
            return CTX_CACHE.get(clazz);
        } else {
            JAXBContext ctx = JAXBContext.newInstance(clazz);
            CTX_CACHE.put(clazz, ctx);
            return ctx;
        }
    }
}

Related

1. closeUnmarshaller(Unmarshaller u)
2. createUnmarshaller()
3. createUnmarshaller()
4. createUnmarshaller()
5. createUnmarshaller(Class jaxbBindClass)
6. createUnmarshaller(Class clazz)
7. createUnmarshaller(Class clazz)
8. createUnmarshaller(Object object)
9. getUnmarshaller()