Java Reflection Primitive resolvePrimitiveType(Class clazz)

Description

Resolve the given class if it is a primitive wrapper class, returning the corresponding primitive type instead.

License

Apache License

Parameter

Parameter	Description
clazz	the wrapper class to check

Return

the corresponding primitive if the clazz is a wrapper, otherwise null

Declaration

public static Class<?> resolvePrimitiveType(Class<?> clazz) 

Method Source Code

//package com.java2s;
/*/* www. j av a 2  s .c o m*/
 * Copyright 2002-2013 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import java.util.HashMap;
import java.util.Map;

public class Main {
    /**
     * Map with primitive wrapper type as key and corresponding primitive
     * type as value, for example: Integer.class -> int.class.
     */
    private static final Map<Class<?>, Class<?>> primitiveWrapperTypeMap = new HashMap<Class<?>, Class<?>>(8);

    /**
     * Resolve the given class if it is a primitive wrapper class,
     * returning the corresponding primitive type instead.
     * @param clazz the wrapper class to check
     * @return the corresponding primitive if the clazz is a wrapper, otherwise null
     */
    public static Class<?> resolvePrimitiveType(Class<?> clazz) {
        return primitiveWrapperTypeMap.get(clazz);
    }
}

Related

1. primitiveToWrapper(final Class cls)
2. resolveClassPrimitiveAware(String className)
3. resolvePrimitiveClassName(String name)
4. resolvePrimitiveClassName(String name)
5. resolvePrimitiveIfNecessary(Class clazz)
6. toPrimitive(String primitiveJson, Class clazz)
7. unwrapPrimitive(final Class clazz)