org.apache.tapestry5.services.MethodAccess Maven / Gradle / Ivy

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Central module for Tapestry, containing interfaces to the Java Servlet API and all core services and components.

There is a newer version: 5.8.6

// Copyright 2010 The Apache Software Foundation
//
// 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.

package org.apache.tapestry5.services;

/**
 * Represents a bridge to an object method, when that method may not be public. A MethodAccess object
 * encapsulates the approach for invoking the method and capturing the result (either the return value,
 * or the checked exception that is thrown).
 * 
 * @since 5.2.0
 * @see TransformMethod#getAccess()
 */
public interface MethodAccess
{
    /**
     * Invoke the method on the target, passing a number of arguments to the method.
     * If the method throws a RuntimeException, that is passed through unchanged.
     * If the method throws a checked exception, that will be reflected in the invocation result.
     * 
     * @param target
     *            object on which to invoke a method
     * @param arguments
     *            arguments to pass to the method
     */
    MethodInvocationResult invoke(Object target, Object... arguments);
}