com.facebook.presto.jdbc.internal.jol.datamodel.CurrentDataModel Maven / Gradle / Ivy
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package com.facebook.presto.jdbc.internal.jol.datamodel;
import com.facebook.presto.jdbc.internal.jol.util.VMSupport;
/**
* Current data model as detected by JVM.
*
* @author Aleksey Shipilev
*/
public class CurrentDataModel implements DataModel {
@Override
public int headerSize() {
return VMSupport.OBJ_HEADER_SIZE;
}
@Override
public int sizeOf(String klass) {
if (klass.equals("byte")) return VMSupport.BYTE_SIZE;
if (klass.equals("boolean")) return VMSupport.BOOLEAN_SIZE;
if (klass.equals("short")) return VMSupport.SHORT_SIZE;
if (klass.equals("char")) return VMSupport.CHAR_SIZE;
if (klass.equals("int")) return VMSupport.INT_SIZE;
if (klass.equals("float")) return VMSupport.FLOAT_SIZE;
if (klass.equals("long")) return VMSupport.LONG_SIZE;
if (klass.equals("double")) return VMSupport.DOUBLE_SIZE;
return VMSupport.REF_SIZE;
}
}
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