/// <summary> Advances to the first match beyond the current whose document number is
/// greater than or equal to a given target. <br/>
/// The implementation uses the skipTo() method on the subscorers.
///
/// </summary>
/// <param name="target">The target document number.
/// </param>
/// <returns> the document whose number is greater than or equal to the given
/// target, or -1 if none exist.
/// </returns>
public override int Advance(int target, IState state)
{
if (scorerDocQueue.Size() < minimumNrMatchers)
{
return(currentDoc = NO_MORE_DOCS);
}
if (target <= currentDoc)
{
return(currentDoc);
}
do
{
if (scorerDocQueue.TopDoc() >= target)
{
return(AdvanceAfterCurrent(state)?currentDoc:(currentDoc = NO_MORE_DOCS));
}
else if (!scorerDocQueue.TopSkipToAndAdjustElsePop(target, state))
{
if (scorerDocQueue.Size() < minimumNrMatchers)
{
return(currentDoc = NO_MORE_DOCS);
}
}
}while (true);
}
/// <summary>Skips to the first match beyond the current whose document number is
/// greater than or equal to a given target.
/// <br>When this method is used the {@link #Explain(int)} method should not be used.
/// <br>The implementation uses the skipTo() method on the subscorers.
/// </summary>
/// <param name="target">The target document number.
/// </param>
/// <returns> true iff there is such a match.
/// </returns>
public override bool SkipTo(int target)
{
if (scorerDocQueue == null)
{
InitScorerDocQueue();
}
if (queueSize < minimumNrMatchers)
{
return(false);
}
if (target <= currentDoc)
{
return(true);
}
do
{
if (scorerDocQueue.TopDoc() >= target)
{
return(AdvanceAfterCurrent());
}
else if (!scorerDocQueue.TopSkipToAndAdjustElsePop(target))
{
if (--queueSize < minimumNrMatchers)
{
return(false);
}
}
}while (true);
}