com.ugos.jiprolog.engine

Class JIPClausesEnumeration

java.lang.Object

com.ugos.jiprolog.engine.JIPClausesEnumeration

All Implemented Interfaces:

Enumeration

Direct Known Subclasses:

JDBCClausesEnumeration, PrologClausesEnumeration, TextClausesEnumeration

public abstract class JIPClausesEnumeration
extends Object
implements Enumeration

JIPClausesEnumeration is the base class to implement an enumeration of clauses contained in a custom database
Developers should implements the methods:
- nextClause
- hasMoreElements
For more information see the section "How to implement a custom database of clauses" in the Reference Manual.

Version:

2.0

Author:

Ugo Chirico 2002
Home Page: http://www.ugochirico.com

See Also:

JIPClausesDatabase

Constructor Summary

Constructors

Constructor and Description
JIPClausesEnumeration(JIPClausesDatabase db) Constructs a clauses enumeration from an instance of JIPClausesDatabase

Method Summary

Methods

Modifier and Type	Method and Description
JIPClausesDatabase	getDatabase() Gets the database associated to this enumeration
abstract JIPClause	nextClause() Gets the next clause in this enumeration.
Object	nextElement() Gets the next element of the enumeration.

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Enumeration

hasMoreElements

Constructor Detail

JIPClausesEnumeration

public JIPClausesEnumeration(JIPClausesDatabase db)

Constructs a clauses enumeration from an instance of JIPClausesDatabase

Parameters:

db - Tha JIPClausesDatabase related to this enumeration

See Also:

JIPClausesDatabase

Method Detail

nextClause

public abstract JIPClause nextClause()

Gets the next clause in this enumeration.

Returns:

the next clause in the enumeration.

See Also:

JIPClause

nextElement

public final Object nextElement()

Gets the next element of the enumeration.
It is called by internal ASM and should not be called by developers.

Specified by:

nextElement in interface Enumeration

getDatabase

public final JIPClausesDatabase getDatabase()

Gets the database associated to this enumeration