Java Method Call invokeIteratorCallable(String callableClassName, ClassLoader cl)

Description

invoke Iterator Callable

License

Apache License

Declaration

private static Iterator<?> invokeIteratorCallable(String callableClassName, ClassLoader cl) throws Exception 

Method Source Code

//package com.java2s;
/*//  w w  w.  ja v  a  2s.  c o m
 * Copyright 2018 The gRPC 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.lang.reflect.Constructor;
import java.lang.reflect.Method;

import java.util.Iterator;

public class Main {
    private static Iterator<?> invokeIteratorCallable(String callableClassName, ClassLoader cl) throws Exception {
        Class<?> klass = Class.forName(callableClassName, true, cl);
        Constructor<?> ctor = klass.getDeclaredConstructor();
        Object instance = ctor.newInstance();
        Method callMethod = klass.getMethod("call");
        return (Iterator<?>) callMethod.invoke(instance);
    }
}

Related

1. invokeGet(Object o, String fieldName)
2. invokeGetClasspathMethodIfItExists(ClassLoader cl)
3. invokeGetMethodWithSameName(Object object, Method method)
4. invokeHeritedMethod(Object target, String method, Class klass)
5. invokeInstanceMethod(Object target, String methodName, Class type, Object arg)
6. invokeMXMethod(String methodName)
7. invokeNoArgs(Object instance, Method method, Class returnType)
8. invokeNoArgsMethod(Object object, String methodName)
9. invokeNonAccessibleMethod(Class clazz, String methodName, Object instance, Object... params)