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package org.apache.lucene.util;
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with this
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* work for additional information regarding copyright ownership. The ASF
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* licenses this file to You under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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* http://www.apache.org/licenses/LICENSE-2.0
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations under
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* Returns primitive memory sizes for estimating RAM usage.
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public abstract class MemoryModel {
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* @return size of array beyond contents
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public abstract int getArraySize();
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* @return Class size overhead
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public abstract int getClassSize();
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* @param clazz a primitive Class - bool, byte, char, short, long, float,
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* @return the size in bytes of given primitive Class
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public abstract int getPrimitiveSize(Class<?> clazz);
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* @return size of reference
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public abstract int getReferenceSize();