com.hazelcast.map.impl.SizeEstimator Maven / Gradle / Ivy
/*
* Copyright (c) 2008-2016, Hazelcast, Inc. All Rights Reserved.
*
* 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 com.hazelcast.map.impl;
/**
* Size estimator general contract.
*
* @param the type of object which's size going to be estimated.
*/
public interface SizeEstimator {
/**
* Assume compressed object reference is used.
*/
int REFERENCE_COST_IN_BYTES = 4;
long getSize();
void add(long size);
long calculateSize(T object);
void reset();
}