> Can you brief about following functions used
>
> 1) resolveDir
resolveDir returns POIFS DirectoryNode object needed by HSSFWorkbook
constructor by its symbolic name. Last time I used POI, the only way
to do it in case of nested directories on POIFS, was recursive descend
one-by-one:
Example:
to get DirectoryNode "\dir1\dir2\dir3" we should do
filesystem.getRoot().getEntry("dir1").getEntry("dir2").getEntry("dir3"),
not filesystem.getRoot().getEntry("dir1\dir2\dir3")
> 2) processPOIFSReaderEvent
POIFSReaderListener interface allows to register callbacks to process
OLE filesystem entries (directories or files), processPOIFSReaderEvent
function is called for each of these entries. In this function we get
those filenames that end with "Workbook" and do anything that is
required for HSSFWorkbook to construct HSSF objects from them.
To understand what this code do, I'd propose to:
- find and read the whole conversation where this code was posted,
you can find some tips about how the problem was being solved
- comment whole "if" block "if(name.endsWith("Workbook")..." and run
your program to see how embedded documents are represented by POI.
- find javadoc for HSSFWorkbook constructors to see what is required
to create HSSF objects
- read POI source
- ?????
- PROFIT! :)
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