/// <summary>NOTE: modifies and returns either "this" or "other"</summary>
public virtual ContainsPrefixTreeFilter.SmallDocSet Union(ContainsPrefixTreeFilter.SmallDocSet
other)
{
ContainsPrefixTreeFilter.SmallDocSet bigger;
ContainsPrefixTreeFilter.SmallDocSet smaller;
if (other.intSet.Size > this.intSet.Size)
{
bigger = other;
smaller = this;
}
else
{
bigger = this;
smaller = other;
}
//modify bigger
foreach (int v in smaller.intSet.keys)
{
if (v == smaller.intSet.emptyVal)
{
continue;
}
bigger.Set(v);
}
return(bigger);
}
/// <exception cref="System.IO.IOException"></exception>
private ContainsPrefixTreeFilter.SmallDocSet CollectDocs(IBits acceptContains)
{
ContainsPrefixTreeFilter.SmallDocSet set = null;
this.docsEnum = this.termsEnum.Docs(acceptContains, this.docsEnum, DocsEnum.FLAG_NONE
);
int docid;
while ((docid = this.docsEnum.NextDoc()) != DocIdSetIterator.NO_MORE_DOCS)
{
if (set == null)
{
int size = this.termsEnum.DocFreq;
if (size <= 0)
{
size = 16;
}
set = new ContainsPrefixTreeFilter.SmallDocSet(size);
}
set.Set(docid);
}
return(set);
}
/// <exception cref="System.IO.IOException"></exception>
private ContainsPrefixTreeFilter.SmallDocSet CollectDocs(IBits acceptContains)
{
ContainsPrefixTreeFilter.SmallDocSet set = null;
this.docsEnum = this.termsEnum.Docs(acceptContains, this.docsEnum, DocsEnum.FLAG_NONE
);
int docid;
while ((docid = this.docsEnum.NextDoc()) != DocIdSetIterator.NO_MORE_DOCS)
{
if (set == null)
{
int size = this.termsEnum.DocFreq;
if (size <= 0)
{
size = 16;
}
set = new ContainsPrefixTreeFilter.SmallDocSet(size);
}
set.Set(docid);
}
return set;
}
