Basic HTML version of Foils prepared 17 Nov 97

Foil 52 Use of Native Classes to Speed Up Execution

From Java Tutorial, July 1, 1996 CEWES Tutorial, CPS606, JSU Class CSC499 -- July 22-25 1997, Fall 97. by Nancy J. McCracken,Geoffrey C. Fox, Tom Scavo


One can essentially augment supplied Java Runtime by supplying your own C or other code implementing a particular functionality in a higher performance mode
This of course generates machine dependence and should only be used if really needed
First for classes you wish to implement in native fashion, put in your java code lines like:
public native mustgofast(arguments); // default functions
static { System.loadLibrary("faststuffhere"); } // static and in class and so runs only ONCE! and loads the native code



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