Newbie Question: Query Creation Best Approach

On Oct 27, 2008, at 3:52 PM, JulieSoko wrote:


I am having some strange behavior and want to rule out that the
query that I
am constructing is the correct way to deal with this type of
query. This
is what I am working with:

I am creating a query that contains 3 different fields
Field 1: value - String
Field 2: type - String
Field 3: time - Unfortunately Strings

The query will always contain the date range. The query can contain
all 3
fields or at least 1 and 3.
i.e
1 & 2 & 3
1 & 3


I tried creating a BooleanQuery similiar to
BooleanQuery bq = new BooleanQuery();
bq.add(new TermQuery(new Term("value",
"hello")),BooleanClause.Occur.MUST);
bq.add(new TermQuery(new
Term("type","email")),BooleanClause.Occur.MUST);

parallelSearcher.search(bq, new RangeFilter("time", startTime,
endTime,true,true),col);

TopDoccollector col = new TopDocCollector(1000);
ParallelMultiSearcher parallelSearcher = new
ParallelMultiSearcher(indexes); // 1 to many indexes

//Now I add the date range
parallelSearcher.search(bq, new RangeFilter("time", startTime,
endTime,true,true),col);


The problem is when there are no matches for the boolean part of the
query... I get an input/output error...


java.io.IOException: Input/output error
java.io.RandomAccessFile.readBytes(Native Method)
java.io.RandomAccessFile.read(RandomAccessFile.java:315)
at
org.apache.lucene.store.FSDirecotry
$FSIndexInput.readInternal(FSDirectory.java:550)
at
org
.apache
.lucene.store.BufferedIndexInput.readBytes(BufferedInputInput.java:
131)
at
org.apache.lucene.index.CompoundFileReader
$CSIndexInput.readInternal(CompoundFileReader.java:240)
at
org
.apache
.lucene.instoreBufferedIndexInput.refill(BufferedIndexInput.java:
152)
at
org
.apache
.lucene.instoreBufferedIndexInput.readByte(BufferedIndexInput.java:
152)
at org.lucene.store.IndexInput.readVInt(IndexInput.java:76)
at org.apache.lucene.index.TermBuffer.read(TermBuffer.java:63)
at org.apache.lucene.index.SegmentTermEnum.next(SegmentTermEnum.java:
123)
at
org.apache.lucene.index.SegmentTermEnum.scanTo(SegmentTermEnum.java:
154)
at
org
.apache.lucene.index.TermInfosReader.scanEnum(TermInfosReader.java:
223)
at org.apache.lucene.index.TermInfosReader.get(TermInfosReader.java:
217)
at org.apache.lucene.index.SegmentReader.docFreq(SegmentReader.java:
678)
at org.apache.lucene.search.IndexSearcher.docFreq(IndexSearcher.java:
87)
at org.apache.lucene.search.Searcher.docFreqs(searcher.java:118)
at
org
.apache.lucene.search.MultiSearcher.createWeight(MultiSearcher.java:
311)
at org.apache.lucene.search.Searcher.search(Searcher.java:178)






Thanks!
Julie

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