/*
 * Copyright 2011-2022 the original author or 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
 *
 *      https://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 io.lettuce.core.dynamic.intercept;

/**
 * Intercepts calls on an interface on its way to the target. These are nested "on top" of the target.
 *
 * <p>
 * Implementing classes are required to implement the {@link #invoke(MethodInvocation)} method to modify the original behavior.
 *
 * @author Mark Paluch
 * @since 5.0
 */
public interface MethodInterceptor {

    /**
     * Implement this method to perform extra treatments before and after the invocation. Polite implementations would certainly
     * like to invoke {@link MethodInvocation#proceed()}.
     *
     * @param invocation the method invocation
     * @return the result of the call to {@link MethodInvocation#proceed()}, might be intercepted by the interceptor.
     * @throws Throwable if the interceptors or the target-object throws an exception.
     */
    Object invoke(MethodInvocation invocation) throws Throwable;

}
