1 /* 2 * Licensed to the Apache Software Foundation (ASF) under one 3 * or more contributor license agreements. See the NOTICE file 4 * distributed with this work for additional information 5 * regarding copyright ownership. The ASF licenses this file 6 * to you under the Apache License, Version 2.0 (the 7 * "License"); you may not use this file except in compliance 8 * with the License. You may obtain a copy of the License at 9 * 10 * http://www.apache.org/licenses/LICENSE-2.0 11 * 12 * Unless required by applicable law or agreed to in writing, 13 * software distributed under the License is distributed on an 14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 15 * KIND, either express or implied. See the License for the 16 * specific language governing permissions and limitations 17 * under the License. 18 * 19 */ 20 package org.apache.mina.filter.executor; 21 22 import org.apache.mina.core.session.IoEvent; 23 24 /** 25 * Estimates the amount of memory that the specified {@link IoEvent} occupies 26 * in the current JVM. 27 * 28 * @author The Apache MINA Project (dev@mina.apache.org) 29 */ 30 public interface IoEventSizeEstimator { 31 /** 32 * Estimate the IoEvent size in numberof bytes 33 * @param event The event we want to estimate the size of 34 * @return The estimated size of this event 35 */ 36 int estimateSize(IoEvent event); 37 }