/// <summary>
/// return the best fragment.
/// </summary>
/// <param name="fieldQuery"><see cref="FieldQuery"/> object</param>
/// <param name="reader"><see cref="IndexReader"/> of the index</param>
/// <param name="docId">document id to be highlighted</param>
/// <param name="fieldName">field of the document to be highlighted</param>
/// <param name="fragCharSize">the length (number of chars) of a fragment</param>
/// <returns>the best fragment (snippet) string</returns>
/// <exception cref="IOException">If there is a low-level I/O error</exception>
public string GetBestFragment(FieldQuery fieldQuery, IndexReader reader, int docId,
string fieldName, int fragCharSize)
{
FieldFragList fieldFragList =
GetFieldFragList(fragListBuilder, fieldQuery, reader, docId, fieldName, fragCharSize);
return(fragmentsBuilder.CreateFragment(reader, docId, fieldName, fieldFragList));
}
/// <summary>
/// return the best fragment.
/// </summary>
/// <param name="fieldQuery"><see cref="FieldQuery"/> object</param>
/// <param name="reader"><see cref="IndexReader"/> of the index</param>
/// <param name="docId">document id to be highlighted</param>
/// <param name="fieldName">field of the document to be highlighted</param>
/// <param name="fragCharSize">the length (number of chars) of a fragment</param>
/// <param name="fragListBuilder"><see cref="IFragListBuilder"/> object</param>
/// <param name="fragmentsBuilder"><see cref="IFragmentsBuilder"/> object</param>
/// <param name="preTags">pre-tags to be used to highlight terms</param>
/// <param name="postTags">post-tags to be used to highlight terms</param>
/// <param name="encoder">an encoder that generates encoded text</param>
/// <returns>the best fragment (snippet) string</returns>
/// <exception cref="IOException">If there is a low-level I/O error</exception>
public string GetBestFragment(FieldQuery fieldQuery, IndexReader reader, int docId,
string fieldName, int fragCharSize,
IFragListBuilder fragListBuilder, IFragmentsBuilder fragmentsBuilder,
string[] preTags, string[] postTags, IEncoder encoder)
{
FieldFragList fieldFragList = GetFieldFragList(fragListBuilder, fieldQuery, reader, docId, fieldName, fragCharSize);
return(fragmentsBuilder.CreateFragment(reader, docId, fieldName, fieldFragList, preTags, postTags, encoder));
}