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Posted to dev@lucene.apache.org by bu...@apache.org on 2005/08/18 14:42:56 UTC
DO NOT REPLY [Bug 36242] New: -
Creating a new index vs. opening an existing one
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http://issues.apache.org/bugzilla/show_bug.cgi?id=36242
Summary: Creating a new index vs. opening an existing one
Product: Lucene
Version: 1.4
Platform: All
OS/Version: All
Status: NEW
Severity: enhancement
Priority: P5
Component: Index
AssignedTo: java-dev@lucene.apache.org
ReportedBy: mikko@noromaa.fi
Currently I have to tell the IndexWriter constructor whether I want a new
index created or not. The behaviour I'd like is to open an index if one
exists, or create a new one if it doesn't exist.
Now I check for a 'segments' file in my code to make the choice:
boolean CreateNew=false;
// Create a new index ONLY if one doesn't exist already. Even then, we first
try to open
// an existing index.
if (!(new java.io.File(IndexPath+"\\segments")).exists()) {
CreateNew=true;
}
try {
writer = new IndexWriter(IndexPath, new StandardAnalyzer(), false);
}
catch (IOException e) {
if (CreateNew) {
writer = new IndexWriter(IndexPath, new StandardAnalyzer(),
true);
}
else {
throw e;
}
}
I believe this logic would make more sense inside Lucene.
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