Package org.projog.api

Provides a programming interface for Java applications to interact with Projog.

As well as interacting with Projog using the console application it is also possible to embed Projog in your Java applications. The steps required for applications to interact with Projog are as follows:

• Create a new Projog instance.
• Load in clauses and facts using Projog.consultFile(File) or Projog.consultReader(Reader).
• Create a QueryStatement by using Projog.createStatement(String).
• Create a QueryResult by using QueryStatement.executeQuery().
• Iterate through all possible solutions to the query by using QueryResult.next().
• For each solution get the Term instantiated to a Variable in the query by calling QueryResult.getTerm(String).

Class Summary

Class	Description
Projog	Provides an entry point for other Java code to interact with Projog.
ProjogStackTraceElement	An element in a stack trace, as returned by Projog.getStackTrace(Throwable).
QueryPlan	Represents a plan for executing a Prolog query.
QueryResult	Represents an executing query.
QueryStatement	Represents a query.