Exemplo n.º 1
0
 private void init(Version version, int minGram, int maxGram, bool edgesOnly)
 {
     if (!version.onOrAfter(Version.LUCENE_44))
     {
         throw new System.ArgumentException("This class only works with Lucene 4.4+. To emulate the old (broken) behavior of NGramTokenizer, use Lucene43NGramTokenizer/Lucene43EdgeNGramTokenizer");
     }
     charUtils = version.onOrAfter(Version.LUCENE_44) ? CharacterUtils.getInstance(version) : CharacterUtils.Java4Instance;
     if (minGram < 1)
     {
         throw new System.ArgumentException("minGram must be greater than zero");
     }
     if (minGram > maxGram)
     {
         throw new System.ArgumentException("minGram must not be greater than maxGram");
     }
     this.minGram   = minGram;
     this.maxGram   = maxGram;
     this.edgesOnly = edgesOnly;
     charBuffer     = CharacterUtils.newCharacterBuffer(2 * maxGram + 1024); // 2 * maxGram in case all code points require 2 chars and + 1024 for buffering to not keep polling the Reader
     buffer         = new int[charBuffer.Buffer.Length];
     // Make the term att large enough
     termAtt.resizeBuffer(2 * maxGram);
 }
Exemplo n.º 2
0
	  private void init(Version version, int minGram, int maxGram, bool edgesOnly)
	  {
		if (!version.onOrAfter(Version.LUCENE_44))
		{
		  throw new System.ArgumentException("This class only works with Lucene 4.4+. To emulate the old (broken) behavior of NGramTokenizer, use Lucene43NGramTokenizer/Lucene43EdgeNGramTokenizer");
		}
		charUtils = version.onOrAfter(Version.LUCENE_44) ? CharacterUtils.getInstance(version) : CharacterUtils.Java4Instance;
		if (minGram < 1)
		{
		  throw new System.ArgumentException("minGram must be greater than zero");
		}
		if (minGram > maxGram)
		{
		  throw new System.ArgumentException("minGram must not be greater than maxGram");
		}
		this.minGram = minGram;
		this.maxGram = maxGram;
		this.edgesOnly = edgesOnly;
		charBuffer = CharacterUtils.newCharacterBuffer(2 * maxGram + 1024); // 2 * maxGram in case all code points require 2 chars and + 1024 for buffering to not keep polling the Reader
		buffer = new int[charBuffer.Buffer.Length];
		// Make the term att large enough
		termAtt.resizeBuffer(2 * maxGram);
	  }