/*
 * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */

package com.sun.xml.internal.ws.client.sei;

import java.lang.reflect.Method;

import javax.xml.namespace.QName;
import javax.xml.ws.WebServiceException;

import com.sun.xml.internal.ws.api.databinding.ClientCallBridge;

Handles an invocation of a method.
 Each instance of MethodHandler has an implicit knowledge of a particular method that it handles. 
Author:
Kohsuke Kawaguchi/**
 * Handles an invocation of a method.
 *
 * <p>
 * Each instance of {@link MethodHandler} has an implicit knowledge of
 * a particular method that it handles.
 *
 * @author Kohsuke Kawaguchi
 */
public abstract class MethodHandler {

    protected final SEIStub owner;
    protected Method method;

    protected MethodHandler(SEIStub owner, Method m) {
        this.owner = owner;
        method = m;
    }

    
Performs the method invocation.
Params:
proxy – 
     The proxy object exposed to the user. Must not be null.
args – 
     The method invocation arguments. To handle asynchroonus method invocations
     without array reallocation, this aray is allowed to be longer than the
     actual number of arguments to the method. Additional array space should be
     simply ignored.
Throws:
WebServiceException –  If used on the client side, a WebServiceException signals an error during the service invocation.
Throwable – 
     some faults are reported in terms of checked exceptions.
Returns:

     a return value from the method invocation. may be null./**
     * Performs the method invocation.
     *
     * @param proxy
     *      The proxy object exposed to the user. Must not be null.
     * @param args
     *      The method invocation arguments. To handle asynchroonus method invocations
     *      without array reallocation, this aray is allowed to be longer than the
     *      actual number of arguments to the method. Additional array space should be
     *      simply ignored.
     * @return
     *      a return value from the method invocation. may be null.
     *
     * @throws WebServiceException
     *      If used on the client side, a {@link WebServiceException} signals an error
     *      during the service invocation.
     * @throws Throwable
     *      some faults are reported in terms of checked exceptions.
     */
    abstract Object invoke(Object proxy, Object[] args) throws WebServiceException, Throwable;
}