Java Method Call invokePrepare(Object instance)

Description

Try to invoke the prepare() method on the provided object instance.

License

Apache License

Parameter

Parameter	Description
instance	the object instance

Declaration

private static void invokePrepare(Object instance) 

Method Source Code

//package com.java2s;
/* //  w w  w.  java  2  s  .  com
 * Copyright 2015 Key Bridge LLC.
 *
 * 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.InvocationTargetException;

public class Main {
    /**
     * Try to invoke the prepare() method on the provided object instance. If the
     * object does not implement prepare() this method will fail gracefully.
     * <p>
     * @param instance the object instance
     */
    private static void invokePrepare(Object instance) {
        if (instance == null) {
            return;
        }
        /**
         * Try to invoke the prepare() method. Fail gracefully if the instance class
         * does not implement the prepare() method.
         */
        try {
            instance.getClass().getMethod("prepare").invoke(instance);
        } catch (NoSuchMethodException | SecurityException ex) {
            /**
             * Does not implement prepare().
             */
        } catch (IllegalAccessException | IllegalArgumentException
                | InvocationTargetException ex) {
            /**
             * prepare() is not accessible (e.g. private).
             */
        }
    }
}

Related

1. invokeNonAccessibleMethod(Class clazz, String methodName, Object instance, Object... params)
2. invokeNonArgMethod(Object object, String methodName)
3. invokeObjectMethod(Object object, String name, Class paramTypes[], Object args[])
4. invokeOrBailOut(Object invokee, Method method, Object[] params)
5. invokeParameterlessMethod(T theObject, String methodName)
6. invokePrimivite(Object entity, Method writeMethod, Class propertyType, String propertyValue)
7. invokePrivate(Class clazz, Object instance, String methodName, Class[] argTypes, Object[] args)
8. invokePrivate(String name, final Object obj, Object[] objects)
9. invokePrivateMethod(Method method, Object object, Object... args)