jess
Class Defmodule

java.lang.Object
  jess.Defmodule

All Implemented Interfaces:

Named, java.io.Serializable, Visitable

public class Defmodule

extends java.lang.Object

implements java.io.Serializable, Named, Visitable

A named module containing rules, templates, and other constructs.

(C) 2005 Sandia National Laboratories

See Also:

Serialized Form

Field Summary

static java.lang.String

MAIN

Constructor Summary

Defmodule()
Construct a module named MAIN.

Defmodule(java.lang.String name, java.lang.String comment)
Construct a new module.

Method Summary

java.lang.Object	accept(Visitor v) A proper accept() implementation should call one of the visitXXX() methods on the Visitor.
Deftemplate	addDeftemplate(Deftemplate dt, Rete engine) Add a new deftemplate to this moduole.
java.lang.String	getConstructType() Return the type of this construct.
Deftemplate	getDeftemplate(java.lang.String name) Return a deftemplate defined in this module, by name.
java.lang.String	getDocstring() Returns the docmentation string for this module.
java.lang.String	getName() Returns the name of this module
java.util.Iterator	listDeftemplates() Return an iterator over all the deftemplates defined in this module.

Methods inherited from class java.lang.Object

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

Field Detail

MAIN

public static final java.lang.String MAIN

See Also:

Constant Field Values

Constructor Detail

Defmodule

public Defmodule()

Construct a module named MAIN.

Defmodule

public Defmodule(java.lang.String name,
                 java.lang.String comment)

Construct a new module.

Parameters:

name - the name of the new module

comment - documentation for the module, or null.

Method Detail

getName

public java.lang.String getName()

Returns the name of this module

Specified by:

getName in interface Named

Returns:

the name

getDocstring

public java.lang.String getDocstring()

Returns the docmentation string for this module.

Specified by:

getDocstring in interface Named

Returns:

the documentation string, or null if none.

listDeftemplates

public java.util.Iterator listDeftemplates()

Return an iterator over all the deftemplates defined in this module.

Returns:

the iterator

getDeftemplate

public Deftemplate getDeftemplate(java.lang.String name)

Return a deftemplate defined in this module, by name.

Parameters:

name - the name of the desired deftemplate

Returns:

the deftemplate if found, or null

addDeftemplate

public Deftemplate addDeftemplate(Deftemplate dt,
                                  Rete engine)
                           throws JessException

Add a new deftemplate to this moduole. The deftemplate must already have been created in this module; it must already report this module's name as part of its name. You can redefine a template only if the definition is identical to the old one.

Parameters:

dt - a new deftemplate

engine - the Rete engine this module belongs to

Returns:

the new deftemplate, or an existing identical template

Throws:

JessException - if anything goes wrong.

getConstructType

public final java.lang.String getConstructType()

Return the type of this construct.

Specified by:

getConstructType in interface Named

Returns:

the string "defmodule".

accept

public java.lang.Object accept(Visitor v)

Description copied from interface: Visitable

A proper accept() implementation should call one of the visitXXX() methods on the Visitor.

Specified by:

accept in interface Visitable

Parameters:

v - a visitor to invoke

Returns:

whatever the invoked Visitor method returns.