public TermsHash(DocumentsWriter docWriter, bool trackAllocations, TermsHashConsumer consumer, TermsHash nextTermsHash)
{
this.docWriter = docWriter;
this.consumer = consumer;
this.nextTermsHash = nextTermsHash;
this.trackAllocations = trackAllocations;
// Why + 4*POINTER_NUM_BYTE below?
// +1: Posting is referenced by postingsFreeList array
// +3: Posting is referenced by hash, which
// targets 25-50% fill factor; approximate this
// as 3X # pointers
bytesPerPosting = consumer.BytesPerPosting() + 4 * DocumentsWriter.POINTER_NUM_BYTE;
postingsFreeChunk = (int)(DocumentsWriter.BYTE_BLOCK_SIZE / bytesPerPosting);
}
public TermsHash(DocumentsWriter docWriter, bool trackAllocations, TermsHashConsumer consumer, TermsHash nextTermsHash)
{
this.docWriter = docWriter;
this.consumer = consumer;
this.nextTermsHash = nextTermsHash;
this.trackAllocations = trackAllocations;
// Why + 4*POINTER_NUM_BYTE below?
// +1: Posting is referenced by postingsFreeList array
// +3: Posting is referenced by hash, which
// targets 25-50% fill factor; approximate this
// as 3X # pointers
bytesPerPosting = consumer.BytesPerPosting() + 4 * DocumentsWriter.POINTER_NUM_BYTE;
postingsFreeChunk = (int) (DocumentsWriter.BYTE_BLOCK_SIZE / bytesPerPosting);
}
internal override DocConsumer GetChain(DocumentsWriter documentsWriter)
{
/*
This is the current indexing chain:
DocConsumer / DocConsumerPerThread
--> code: DocFieldProcessor / DocFieldProcessorPerThread
--> DocFieldConsumer / DocFieldConsumerPerThread / DocFieldConsumerPerField
--> code: DocFieldConsumers / DocFieldConsumersPerThread / DocFieldConsumersPerField
--> code: DocInverter / DocInverterPerThread / DocInverterPerField
--> InvertedDocConsumer / InvertedDocConsumerPerThread / InvertedDocConsumerPerField
--> code: TermsHash / TermsHashPerThread / TermsHashPerField
--> TermsHashConsumer / TermsHashConsumerPerThread / TermsHashConsumerPerField
--> code: FreqProxTermsWriter / FreqProxTermsWriterPerThread / FreqProxTermsWriterPerField
--> code: TermVectorsTermsWriter / TermVectorsTermsWriterPerThread / TermVectorsTermsWriterPerField
--> InvertedDocEndConsumer / InvertedDocConsumerPerThread / InvertedDocConsumerPerField
--> code: NormsWriter / NormsWriterPerThread / NormsWriterPerField
--> code: StoredFieldsWriter / StoredFieldsWriterPerThread / StoredFieldsWriterPerField
*/
// Build up indexing chain:
TermsHashConsumer termVectorsWriter = new TermVectorsTermsWriter(documentsWriter);
TermsHashConsumer freqProxWriter = new FreqProxTermsWriter();
InvertedDocConsumer termsHash = new TermsHash(documentsWriter, true, freqProxWriter, new TermsHash(documentsWriter, false, termVectorsWriter, null));
NormsWriter normsWriter = new NormsWriter();
DocInverter docInverter = new DocInverter(termsHash, normsWriter);
return new DocFieldProcessor(documentsWriter, docInverter);
}