io.netty.channel.MessageSizeEstimator Maven / Gradle / Ivy
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This artifact provides a single jar that contains all classes required to use remote EJB and JMS, including
all dependencies. It is intended for use by those not using maven, maven users should just import the EJB and
JMS BOM's instead (shaded JAR's cause lots of problems with maven, as it is very easy to inadvertently end up
with different versions on classes on the class path).
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/*
* Copyright 2013 The Netty Project
*
* The Netty Project 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:
*
* 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.netty.channel;
/**
* Responsible to estimate the size of a message. The size represents approximately how much memory the message will
* reserve in memory.
*/
public interface MessageSizeEstimator {
/**
* Creates a new handle. The handle provides the actual operations.
*/
Handle newHandle();
interface Handle {
/**
* Calculate the size of the given message.
*
* @param msg The message for which the size should be calculated
* @return size The size in bytes. The returned size must be >= 0
*/
int size(Object msg);
}
}