예제 #1
0
        /// <summary>Adds a new <Term, TermInfo> pair to the set.
        /// Term must be lexicographically greater than all previous Terms added.
        /// TermInfo pointers must be positive and greater than all previous.
        /// </summary>
        public /*internal*/ void  Add(Term term, TermInfo ti)
        {
            if (!isIndex && term.CompareTo(lastTerm) <= 0)
            {
                throw new System.IO.IOException("term out of order");
            }
            if (ti.freqPointer < lastTi.freqPointer)
            {
                throw new System.IO.IOException("freqPointer out of order");
            }
            if (ti.proxPointer < lastTi.proxPointer)
            {
                throw new System.IO.IOException("proxPointer out of order");
            }

            if (!isIndex && size % indexInterval == 0)
            {
                other.Add(lastTerm, lastTi);                        // add an index term
            }
            WriteTerm(term);                                        // write term
            output.WriteVInt(ti.docFreq);                           // write doc freq
            output.WriteVLong(ti.freqPointer - lastTi.freqPointer); // write pointers
            output.WriteVLong(ti.proxPointer - lastTi.proxPointer);

            if (ti.docFreq >= skipInterval)
            {
                output.WriteVInt(ti.skipOffset);
            }

            if (isIndex)
            {
                output.WriteVLong(other.output.GetFilePointer() - lastIndexPointer);
                lastIndexPointer = other.output.GetFilePointer();                 // write pointer
            }

            lastTi.Set(ti);
            size++;
        }