public SegmentTermsEnum() throws IOException {
in = BlockTermsReader.this.in.clone();
in.seek(termsStartPointer);
indexEnum = indexReader.getFieldEnum(fieldInfo);
doOrd = indexReader.supportsOrd();
fieldTerm.field = fieldInfo.name;
state = postingsReader.newTermState();
state.totalTermFreq = -1;
state.ord = -1;
termSuffixes = new byte[128];
docFreqBytes = new byte[64];
// System.out.println("BTR.enum init this=" + this + " postingsReader=" + postingsReader);
longs = new long[longsSize];
}
private void decodeMetaData() throws IOException {
// System.out.println("BTR.decodeMetadata mdUpto=" + metaDataUpto + " vs termCount=" +
// state.termBlockOrd + " state=" + state);
if (!seekPending) {
// TODO: cutover to random-access API
// here.... really stupid that we have to decode N
// wasted term metadata just to get to the N+1th
// that we really need...
// lazily catch up on metadata decode:
final int limit = state.termBlockOrd;
boolean absolute = metaDataUpto == 0;
// TODO: better API would be "jump straight to term=N"???
while (metaDataUpto < limit) {
// System.out.println(" decode mdUpto=" + metaDataUpto);
// TODO: we could make "tiers" of metadata, ie,
// decode docFreq/totalTF but don't decode postings
// metadata; this way caller could get
// docFreq/totalTF w/o paying decode cost for
// postings
// TODO: if docFreq were bulk decoded we could
// just skipN here:
// docFreq, totalTermFreq
state.docFreq = freqReader.readVInt();
// System.out.println(" dF=" + state.docFreq);
if (fieldInfo.getIndexOptions() != IndexOptions.DOCS) {
state.totalTermFreq = state.docFreq + freqReader.readVLong();
// System.out.println(" totTF=" + state.totalTermFreq);
}
// metadata
for (int i = 0; i < longs.length; i++) {
longs[i] = bytesReader.readVLong();
}
postingsReader.decodeTerm(longs, bytesReader, fieldInfo, state, absolute);
metaDataUpto++;
absolute = false;
}
} else {
// System.out.println(" skip! seekPending");
}
}