Returns type parameters of given type acquired via reflection. - Java Reflection

Java examples for Reflection:Method Parameter

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Description

Returns type parameters of given type acquired via reflection.

Demo Code

/*/*from   w ww. j  av  a 2  s . c o m*/
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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.
 */
//package com.java2s;

import java.lang.reflect.ParameterizedType;
import java.lang.reflect.Type;

public class Main {
    /**
     * Returns type parameters of given type acquired via reflection.
     * @param type
     * @return
     */
    public static Type[] getTypeParameters(Type type) {
        Type[] ret = null;
        if (type instanceof ParameterizedType) {
            ParameterizedType pt = (ParameterizedType) type;
            ret = pt.getActualTypeArguments();
        } else {
            ret = new Type[0];
        }
        return ret;
    }
}

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