KnowledgeBase
Class PropertyNode

java.lang.Object
  |
  +--KnowledgeBase.PropertyNode

All Implemented Interfaces:

java.lang.Comparable

public class PropertyNode

extends java.lang.Object

implements java.lang.Comparable

Defines a property node in the knowledge base.

See the dissertation document and KnowledgeBaseParser.jj for complete details.

Version:

Created 18 July 2003

Author:

Dan Tappan

See Also:

KnowledgeBase

Field Summary

java.lang.String	property_name
PlausibilityInterval	range
java.lang.String	slot_value
int	type
int	TYPE_RANGE
int	TYPE_SLOT
java.lang.String	UNDEFINED

Constructor Summary

PropertyNode(java.lang.String property_name, PlausibilityInterval plausibility_interval)
Creates a new PropertyNode for a plausibility interval as specified by the knowledge-base parser.

PropertyNode(java.lang.String property_name, java.lang.String slot_value)
Creates a new PropertyNode for a single slot as specified by the knowledge-base parser.

Method Summary

int	compareTo(java.lang.Object other_property_node) Returns the comparison of two property nodes based lexicographically on their property name.
PropertyNode	getClone() Returns a clone of this object.
java.lang.String	toString() Returns a string representation of this object.

Methods inherited from class java.lang.Object

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

Field Detail

TYPE_SLOT

public final int TYPE_SLOT

See Also:

Constant Field Values

TYPE_RANGE

public final int TYPE_RANGE

See Also:

Constant Field Values

type

public int type

property_name

public java.lang.String property_name

UNDEFINED

public final java.lang.String UNDEFINED

See Also:

Constant Field Values

range

public PlausibilityInterval range

slot_value

public java.lang.String slot_value

Constructor Detail

PropertyNode

public PropertyNode(java.lang.String property_name,
                    java.lang.String slot_value)

Creates a new PropertyNode for a single slot as specified by the knowledge-base parser.

See the dissertation document for details on how these parameters are defined and used.

Parameters:

property_name - - the optionally prefixed property name

slot_value - - the simple property value

PropertyNode

public PropertyNode(java.lang.String property_name,
                    PlausibilityInterval plausibility_interval)

Creates a new PropertyNode for a plausibility interval as specified by the knowledge-base parser.

See the dissertation document for details on how these parameters are defined and used.

Parameters:

property_name - - the property name

plausibility_interval - - the plausibility interval

Method Detail

compareTo

public int compareTo(java.lang.Object other_property_node)

Returns the comparison of two property nodes based lexicographically on their property name.

Specified by:

compareTo in interface java.lang.Comparable

Parameters:

other_property_node - - the property node to compare

Returns:

the comparison result

See Also:

String.compareTo(java.lang.String)

getClone

public PropertyNode getClone()

Returns a clone of this object.

Returns:

the clone

toString

public java.lang.String toString()

Returns a string representation of this object.

Overrides:

toString in class java.lang.Object

Returns:

the String representation

See Also:

Support