public SessionStatisticsImpl(SessionImplementor session) 
{
		this.session = session;
}

 public int getCollectionCount() 
{
		return session.getPersistenceContext().getCollectionEntries().size();
}

 public Set getCollectionKeys() 
{
		return Collections.unmodifiableSet( session.getPersistenceContext().getCollectionsByKey().keySet() );
}

 public int getEntityCount() 
{
		return session.getPersistenceContext().getEntityEntries().size();
}

 public Set getEntityKeys() 
{
		return Collections.unmodifiableSet( session.getPersistenceContext().getEntitiesByKey().keySet() );
}

 public String toString() 
{
		return new StringBuffer()
			.append("SessionStatistics[")
			.append("entity count=").append( getEntityCount() )
			.append("collection count=").append( getCollectionCount() )
			.append(']")
			.toString();
}