/// <summary>
/// Checks if the term entry contains given posting, ie. if the term is in the given artifact.
/// </summary>
/// <param name="artifactId">artifact id</param>
/// <returns>true, if termEntry conatins the posting, false otherwise</returns>
/// <exception cref="System.ArgumentException">if artifact id is null or empty</exception>
public bool ContainsPosting(string artifactId)
{
if (artifactId == null || artifactId == "")
{
throw new ArgumentException("The documentId cannot be empty or null");
}
return(PostingsLookup.ContainsKey(artifactId));
}
/// <summary>
/// Allows adding new posting to the termEntry.
/// </summary>
/// <exception cref="System.ArgumentException">if posting is null</exception>
private void AddPosting(TLPosting posting)
{
if (posting == null)
{
throw new ArgumentException("The posting cannot be null");
}
PostingsLookup.Add(posting.ArtifactId, posting);
m_postings.Add(posting);
}
/// <summary>
/// Gets the posting for the specified artifact id
/// </summary>
/// <param name="artifactId">artifact id</param>
/// <returns>the posting for the specified artifact</returns>
/// <exception cref="System.ArgumentException">if artifact id is null or empty</exception>
public TLPosting GetPosting(string artifactId)
{
if (artifactId == null || artifactId == "")
{
throw new ArgumentException("The documentId cannot be empty or null");
}
TLPosting posting;
if (!PostingsLookup.TryGetValue(artifactId, out posting))
{
throw new ArgumentException("Postings collection does not contain specified document");
}
else
{
return(posting);
}
}
/// <summary>
/// Allows adding new posting to the termEntry.
/// </summary>
/// <param name="artifactId">artifact id</param>
/// <param name="frequency">frequency of the term in the given artifact</param>
/// <param name="weight">local weight of the term in the posting</param>
/// <returns>created posting</returns>
/// <exception cref="System.ArgumentException">if documentId is null or empty; or if frequency is less than 0</exception>
public TLPosting AddPosting(string artifactId, int frequency, double weight)
{
if (artifactId == null || artifactId == "")
{
throw new ArgumentException("The documentId cannot be empty or null");
}
if (frequency <= 0)
{
throw new ArgumentException("Frequency has to be greater than 0.");
}
TLPosting posting = new TLPosting(artifactId, frequency, weight);
PostingsLookup.Add(artifactId, posting);
m_postings.Add(posting);
return(posting);
}
