public class TabDelimParser extends ObjectParse tab-delimited ontology files into Ontology objects.
The tab-delimited ontology files have three types of lines. Lines that are pure white space can be discarded. Comment lines begin with a hash (#) and can be discarded. The payload lines contain three fields seperated by tabs. These are
object. By convention, the content of each field contains no spaces.
By convention, if there are comment lines beginning with
description:and these appear before any predicate declarations then they become the name and description of the ontology. Otherwise, the name and description will be the empty string.
Term names normally will be just a term name like
person. There are also terms that represent collections of triples. For example, here is the declaration for the 'triple' type in the core ontology.
... triple is-a any triple has-a source triple has-a target triple has-a predicate (triple,has-a,any) size 3 ...
The first four lines just associate triple with some type with a predicate (e.g. is-a or has-a). The fifth line says that something must have a size of three. The 'something' is
(triple,has-a,any) size 3and is short-hand for a collection of triples that state that the source must be
triple, the target must be
anyand the predicate must be
has-a. This whole expression states that a triple has exactly three has-a relationships; that is, exactly three properties.
- Matthew Pocock
Constructors Constructor Description
All Methods Instance Methods Concrete Methods Modifier and Type Method Description
parse(BufferedReader in, OntologyFactory of)Parse an ontology from a reader.
public Ontology parse(BufferedReader in, OntologyFactory of) throws IOException, OntologyExceptionParse an ontology from a reader. The reader will be emptied of text. It is the caller's responsibility to close the reader.