/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.qi4j.functional;

/**
 * Generic Visitor interface.
 */
public interface Visitor<T, ThrowableType extends Throwable>
{
    /**
     * Visit an instance of T
     *
     * @param visited the visited instance
     *
     * @return true if the visitor pattern should continue, false if it should be aborted
     *
     * @throws ThrowableType if an exception occurred during processing. Any client call that initiated the visiting should
     *                       get the exception in order to handle it properly.
     */
    boolean visit( T visited )
        throws ThrowableType;
}
