File	Doc	Category	Size	Date	Package
MultipleTermPositions.java	API Doc	Apache Lucene 1.4.3	6164	Tue Mar 30 00:48:02 BST 2004	org.apache.lucene.index

MultipleTermPositions

• java.lang.Object

Fields Summary
private int	_doc
private int	_freq
private TermPositionsQueue	_termPositionsQueue
private IntQueue	_posList

Constructors Summary

public MultipleTermPositions(IndexReader indexReader, Term[] terms) Creates a new MultipleTermPositions instance. param indexReader an IndexReader value param terms a Term[] value exception IOException if an error occurs List termPositions = new LinkedList(); for (int i=0; i<terms.length; i++) termPositions.add(indexReader.termPositions(terms[i])); _termPositionsQueue = new TermPositionsQueue(termPositions); _posList = new IntQueue();

Methods Summary
public final void	close() Describe close method here. exception IOException if an error occurs see TermDocs#close() while (_termPositionsQueue.size() > 0) ((TermPositions)_termPositionsQueue.pop()).close();
public final int	doc() Describe doc method here. return an int value see TermDocs#doc() return _doc;
public final int	freq() Describe freq method here. return an int value see TermDocs#freq() return _freq;
public final boolean	next() Describe next method here. return a boolean value exception IOException if an error occurs see TermDocs#next() if (_termPositionsQueue.size() == 0) return false; _posList.clear(); _doc = _termPositionsQueue.peek().doc(); TermPositions tp; do { tp = _termPositionsQueue.peek(); for (int i=0; i<tp.freq(); i++) _posList.add(tp.nextPosition()); if (tp.next()) _termPositionsQueue.adjustTop(); else { _termPositionsQueue.pop(); tp.close(); } } while (_termPositionsQueue.size() > 0 && _termPositionsQueue.peek().doc() == _doc); _posList.sort(); _freq = _posList.size(); return true;
public final int	nextPosition() Describe nextPosition method here. return an int value exception IOException if an error occurs see TermPositions#nextPosition() return _posList.next();
public int	read(int[] arg0, int[] arg1) Describe read method here. param arg0 an int[] value param arg1 an int[] value return an int value exception IOException if an error occurs see TermDocs#read(int[], int[]) throw new UnsupportedOperationException();
public void	seek(org.apache.lucene.index.Term arg0) Describe seek method here. param arg0 a Term value exception IOException if an error occurs see TermDocs#seek(Term) throw new UnsupportedOperationException();
public void	seek(org.apache.lucene.index.TermEnum termEnum) throw new UnsupportedOperationException();
public final boolean	skipTo(int target) Describe skipTo method here. param target an int value return a boolean value exception IOException if an error occurs see TermDocs#skipTo(int) while (target > _termPositionsQueue.peek().doc()) { TermPositions tp = (TermPositions)_termPositionsQueue.pop(); if (tp.skipTo(target)) _termPositionsQueue.put(tp); else tp.close(); } return next();