Class LoaderFLF

  extended by org.rosuda.ibase.LoaderFLF

public class LoaderFLF
extends java.lang.Object

Loader for FLF (Fast Loading Files) data format. FLF is a simple (text-based) format that is optimized to allow fast loading. In addition to regualar ASCII text formats it contains metainformation that allow the program to pre-allocate buffers and there is no need for type guessing. The actual format is line-based and starts with FLF1 magic line followed by headers. Those are terminated by an empty line which is followed byt he actual data. FLF1 headers ** : mandatory properties: fs: rec: data ** [@][...] [] (as many lines as there are records) types ** INT - integer, no TSP FLT - float, no TSP PLN - polygons, no TSP (for data format see below) FAC - factor TSP: ... the data consist of level indices (starting at 0); -1 denotes NA The flag @ after a type denotes that there are missing values. Any data beyond the last record of the last field are silently discarded. PLN - polygons, no TSP data are more tricky: <# of segments (polygons) for this case> (-1 = NA, structures below are not stored then; currently 0 is silently converted to -1) <# of points in this poly> (currently ignored and should be always "L" = land; later may be "W" for water etc. ) .. .. []

Constructor Summary
Method Summary
 int load( f, SVarSet set)
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail


public LoaderFLF()
Method Detail


public int load( f,
                SVarSet set)