jess
Class Deffacts

java.lang.Object
  |
  +--jess.Deffacts

All Implemented Interfaces:

java.io.Serializable, Visitable

public class Deffacts

extends java.lang.Object

implements java.io.Serializable, Visitable

Class used to represent deffacts. Note that you can create Deffacts objects and add them to a Rete engine using Rete.addDeffacts().

(C) 1998 E.J. Friedman-Hill and the Sandia Corporation

Author:

Ernest J. Friedman-Hill

See Also:

Serialized Form

Constructor Summary

Deffacts(java.lang.String name, java.lang.String docstring, Rete engine)
Create a deffacts

Method Summary

java.lang.Object	accept(Visitor v)
void	addFact(Fact fact) Add a fact to this deffacts
java.lang.String	getDocstring() Fetch the documentation comment, if any, for this deffacts
Fact	getFact(int idx) Fetch a single Fact from this deffacts
java.lang.String	getModule() Fetch the module of this deffacts
java.lang.String	getName() Fetch the name of this deffacts
int	getNFacts() Fetch the number of facts in this deffacts
void	reset(Rete engine) Assert my facts into engine.
java.lang.String	toString() Describe myself

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

Deffacts

public Deffacts(java.lang.String name,
                java.lang.String docstring,
                Rete engine)
         throws JessException

Create a deffacts

Parameters:

name - The name of the deffacts

docstring - A documentation string

Method Detail

getName

public final java.lang.String getName()

Fetch the name of this deffacts

Returns:

the name

getModule

public final java.lang.String getModule()

Fetch the module of this deffacts

Returns:

the module

getDocstring

public final java.lang.String getDocstring()

Fetch the documentation comment, if any, for this deffacts

Returns:

the documentation string

addFact

public void addFact(Fact fact)

Add a fact to this deffacts

Parameters:

fact - The fact to add

getNFacts

public int getNFacts()

Fetch the number of facts in this deffacts

Returns:

the number of facts

getFact

public Fact getFact(int idx)

Fetch a single Fact from this deffacts

Parameters:

idx - the o-based index of the desired fact

Returns:

the idx'th fact

reset

public void reset(Rete engine)
           throws JessException

Assert my facts into engine.

toString

public java.lang.String toString()

Describe myself

Overrides:

toString in class java.lang.Object

Returns:

A string representation of this deffacts

accept

public java.lang.Object accept(Visitor v)

Specified by:

accept in interface Visitable