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The Java interface is centered around the class PrologSession
,
which represents a connection (or session) to a Prolog
server. PrologSession
contains static methods for looking up
named PrologSession
instances using JNDI (Java Naming and
Directory Interface) as well as methods for querying the Prolog server.
Other important classes are: QueryAnswer
, which contains the
answer for a query sent to the Prolog server; PBTerm
, which
represents a Prolog term; and Bindings
, which supports stuffing
of variable values used in queries.
A brief description of the provided Java classes are presented below. More information about the Java APIs is available in the JavaDoc files on the page https://sicstus.sics.se/documentation.html.
PrologSession
The PrologSession
object is the connection to the Prolog
server. The constructor PrologSession()
creates a PrologSession
with the default settings
(host = localhost, port = 8066
.
QueryAnswer
The QueryAnswer
contains the answer (new bindings) for a query
(or the error that occurred during the query process).
PBTerm
The PBTerm
object is for representing parsed Prolog terms.
Bindings
Bindings
is used for binding variables to values
in a query sent to the Prolog. The values will be automatically
stuffed before they are sent to the Prolog server.