package com.flaptor.org.apache.lucene.util; /** * 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. */ /** * Returns primitive memory sizes for estimating RAM usage. * */ public abstract class MemoryModel { /** * @return size of array beyond contents */ public abstract int getArraySize(); /** * @return Class size overhead */ public abstract int getClassSize(); /** * @param clazz a primitive Class - bool, byte, char, short, long, float, * short, double, int * @return the size in bytes of given primitive Class */ public abstract int getPrimitiveSize(Class<?> clazz); /** * @return size of reference */ public abstract int getReferenceSize(); }