本文整理汇总了C#中Lucene.Net.Analysis.Analyzer.GetPositionIncrementGap方法的典型用法代码示例。如果您正苦于以下问题:C# Lucene.Net.Analysis.Analyzer.GetPositionIncrementGap方法的具体用法?C# Lucene.Net.Analysis.Analyzer.GetPositionIncrementGap怎么用?C# Lucene.Net.Analysis.Analyzer.GetPositionIncrementGap使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类Lucene.Net.Analysis.Analyzer
的用法示例。
在下文中一共展示了Lucene.Net.Analysis.Analyzer.GetPositionIncrementGap方法的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: InvertField
/* Invert one occurrence of one field in the document */
public void InvertField(Fieldable field, Analyzer analyzer, int maxFieldLength)
{
if (length > 0)
position += analyzer.GetPositionIncrementGap(fieldInfo.name);
if (!field.IsTokenized())
{
// un-tokenized field
System.String stringValue = field.StringValue();
int valueLength = stringValue.Length;
Token token = localToken;
token.Clear();
char[] termBuffer = token.TermBuffer();
if (termBuffer.Length < valueLength)
termBuffer = token.ResizeTermBuffer(valueLength);
DocumentsWriter.GetCharsFromString(stringValue, 0, valueLength, termBuffer, 0);
token.SetTermLength(valueLength);
token.SetStartOffset(offset);
token.SetEndOffset(offset + stringValue.Length);
AddPosition(token);
offset += stringValue.Length;
length++;
}
else
{
// tokenized field
TokenStream stream;
TokenStream streamValue = field.TokenStreamValue();
if (streamValue != null)
stream = streamValue;
else
{
// the field does not have a TokenStream,
// so we have to obtain one from the analyzer
System.IO.TextReader reader; // find or make Reader
System.IO.TextReader readerValue = field.ReaderValue();
if (readerValue != null)
reader = readerValue;
else
{
System.String stringValue = field.StringValue();
if (stringValue == null)
throw new System.ArgumentException("field must have either TokenStream, String or Reader value");
Enclosing_Instance.stringReader.Init(stringValue);
reader = Enclosing_Instance.stringReader;
}
// Tokenize field and add to postingTable
stream = analyzer.ReusableTokenStream(fieldInfo.name, reader);
}
// reset the TokenStream to the first token
stream.Reset();
try
{
offsetEnd = offset - 1;
for (; ; )
{
Token token = stream.Next(localToken);
if (token == null)
break;
position += (token.GetPositionIncrement() - 1);
AddPosition(token);
if (++length >= maxFieldLength)
{
if (Enclosing_Instance.Enclosing_Instance.infoStream != null)
Enclosing_Instance.Enclosing_Instance.infoStream.WriteLine("maxFieldLength " + maxFieldLength + " reached for field " + fieldInfo.name + ", ignoring following tokens");
break;
}
}
offset = offsetEnd + 1;
}
finally
{
stream.Close();
}
}
boost *= field.GetBoost();
}