Package dovetaildb.store

Examples of dovetaildb.store.VarPosition

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    private BytesInterface data;
    private final VarPosition itrPtr;
    private int numRecs;
    FsTokenRecIterator(BytesInterface data, long ptr) {
      this.data = data;
      this.itrPtr = new VarPosition(ptr);
      this.numRecs = (int)data.getVLong(itrPtr);
    }
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    final BytesInterface data;
    FsBytes fixedPrefix;
    FsTokenTable(BytesInterface data, long tableHeadPtr) {
      this.data = data;
      this.tableHeadPtr = tableHeadPtr;
      VarPosition vp = new VarPosition(tableHeadPtr);
      int prefixLength = (int)data.getVLong(vp);
      fixedPrefix = new FsBytes(data, vp.position, prefixLength);
      recHeadPtr = vp.position + prefixLength;
    }
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  private int writePlan(PagePlan plan, int parentPage) {
    int newPage = pages.newPageIndex();
    if (plan.subPlans == null) {
      // a leaf page
      TermInDocRec prev = null;
      VarPosition position = new VarPosition(pages.getByteOffestForPage(newPage  ));
      VarPosition cap      = new VarPosition(pages.getByteOffestForPage(newPage+1));
      for(TermInDocRec rec : plan.docs) {
        writeTermInDocRecAndValue(prev, rec, position, cap);
        prev = rec;
      }
    } else {
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    ArrayList<TermInDocRec> recs = new ArrayList<TermInDocRec>();
    long firstPage = page;
    long nextPage = -1;
    do {
      long byteOffset = pages.getByteOffestForPage(page)+8L;
      VarPosition top = new VarPosition(pages.getByteOffestForPage(page+1));
      VarPosition vp = new VarPosition(byteOffset);
      while (true) {
        TermInDocRec rec = this.readTermInDocRec(null, vp, top);
        if (rec == null) break;
        else recs.add(rec);
      }
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    long byteOffset    = pages.getByteOffestForPage(page);
    long byteOffsetCap = pages.getByteOffestForPage(page+1);
    long intOffset     = pages.getIntOffestForPage(page);
    if (isSingleValued) {
      pageBi.putInt(intOffset, SINGLE_MASK);
      VarPosition vp = new VarPosition(byteOffset + 4);
      for(TermInDocRec rec : bucket) {
        pageBi.putVLong(vp, rec.docId, byteOffsetCap);
      }
      pageBi.putVLong(vp, 0, byteOffsetCap);
    } else {
      pageBi.putByte(byteOffset++, (byte)0);
      VarPosition vp = new VarPosition(byteOffset);
      for(TermInDocRec rec : bucket) {
        pageBi.putVLong(vp, rec.docId, byteOffsetCap);
        pageBi.putVLong(vp, rec.term.length, byteOffsetCap);
        byteOffsetCap -= rec.term.length;
        pageBi.putBytes(byteOffsetCap, rec.term.length, rec.term, 0);
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    int termPrefixLen  = ret.termPrefixLen;
    int parentTriePage = ret.parentPage;
    int firstLeafPage  = ret.page;
    int lastLeafPage   = this.getPrevLeafPage(firstLeafPage); // get last page

    VarPosition pos = getDocsStartForPage(lastLeafPage);
    VarPosition top = getDocsCapForPage(lastLeafPage);
    TermInDocRec cur  = null;
    TermInDocRec prev = null;
    boolean allSame = true;
    do {
      cur = readTermInDocRec(prev, pos, top);
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  }
 
  private VarPosition getDocsStartForPage(int leafPage) {
    long offset = pages.getByteOffestForPage(leafPage);
    // link prev:4 + link next:4 + doc list
    return new VarPosition(offset+8);
  }
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    long offset = pages.getByteOffestForPage(leafPage);
    // link prev:4 + link next:4 + doc list
    return new VarPosition(offset+8);
  }
  private VarPosition getDocsCapForPage(int leafPage) {
    return new VarPosition(pages.getByteOffestForPage(leafPage+1));
  }
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  private int writePlan(PagePlan plan, int parentPage) {
    int newPage = pages.newPageIndex();
    if (plan.subPlans == null) {
      // a leaf page
      TermInDocRec prev = null;
      VarPosition position = new VarPosition(pages.getByteOffestForPage(newPage  ));
      VarPosition cap      = new VarPosition(pages.getByteOffestForPage(newPage+1));
      for(TermInDocRec rec : plan.docs) {
        writeTermInDocRecAndValue(prev, rec, position, cap);
        prev = rec;
      }
    } else {
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    ArrayList<TermInDocRec> recs = new ArrayList<TermInDocRec>();
    long firstPage = page;
    long nextPage = -1;
    do {
      long byteOffset = pages.getByteOffestForPage(page)+8L;
      VarPosition top = new VarPosition(pages.getByteOffestForPage(page+1));
      VarPosition vp = new VarPosition(byteOffset);
      while (true) {
        TermInDocRec rec = this.readTermInDocRec(null, vp, top);
        if (rec == null) break;
        else recs.add(rec);
      }
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Related Classes of dovetaildb.store.VarPosition

  • dovetaildb.bagindex.FsBlueSteelBagIndex$FsTokenRecIterator
  • dovetaildb.bagindex.FsBlueSteelBagIndex$FsTokenTable
  • dovetaildb.bagindex.OriginalTrieBagIndex
  • dovetaildb.bagindex.TrieBagIndex
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