If I understand you right, you have a dilemma in finding a good way to
handle when to create and when to reuse a directory.
I use a simple scheme. If the index directory already exist, I assume
it has a valid index. Otherwise a new index is created. If I want to
rebuild the index, I simply delete the directory from shell. Here is
my code sniplet:
def initDirectory(pathname=None):
""" pathname - index directory. Create new index if directory
does not exist. '' or None for RAMDirectory (for testing).
"""
if not pathname:
directory = PyLucene.RAMDirectory()
# initialize the new directory
writer = PyLucene.IndexWriter(directory,
PyLucene.StandardAnalyzer(), True)
writer.close()
elif not os.path.exists(pathname):
directory = PyLucene.FSDirectory.getDirectory(pathname, True)
# initialize the new directory
writer = PyLucene.IndexWriter(directory,
PyLucene.StandardAnalyzer(), True)
writer.close()
else:
directory = PyLucene.FSDirectory.getDirectory(pathname, False)
return directory
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