casa.util.unused

Class PropositionNode

java.lang.Object

casa.util.unused.PropositionNode

All Implemented Interfaces:

BooleanNode

Deprecated.

(rck) The classes BooleanNode, DataNode, LogicalNode, LogicalPropoisitonTree, LogicalPropositionTreeException, LogicalPropositionTreeNode, NumberLiteralNode, PropositionNode, and StringLiteralNode taken together appear to be unused in CASA.

@Deprecated
public class PropositionNode
extends Object
implements BooleanNode

A PropositionNode object is a node in a LogicalPropositionTree that represents a proposition. It can evaluate to true or false if given the context of a PropertiesMap. A proposition must be in one of the following forms, where c and d represent a literal string, a literal number, or a variable:

• c == d
  evaluates to true if c and d are identical; false otherwise.
• c != d
  evaluates to false if c and d are identical; true otherwise.
• c < d
  evaluates to true if c and d are both a number and c is less than d or if c and d are both strings and c is lexigraphically before d; false otherwise.
• c <= d
  evaluates to c < d || c == d.
• c > d
  evaluates to true if c and d are both a number and c is greater than d or if c and d are both strings and c is lexigraphically after d; false otherwise.
• c >= d
  evaluates to c > d || c == d.
• c =re d
  evaluates to true if c is a string that matches the regular expression d; false otherwise.

Copyright: Copyright 2003-2014, Knowledge Science Group, University of Calgary. Permission to use, copy, modify, distribute and sell this software and its documentation for any purpose is hereby granted without fee, provided that the above copyright notice appear in all copies and that both that copyright notice and this permission notice appear in supporting documentation. The Knowledge Science Group makes no representations about the suitability of this software for any purpose. It is provided "as is" without express or implied warranty.

Version:

0.9

Author:

Jason Heard

Field Summary

Fields

Modifier and Type	Field and Description
private DataNode	c Deprecated.
private DataNode	d Deprecated.
static String	EQUALS_OPERATOR Deprecated.
static String	EQUALS_REGULAR_EXPRESSION_OPERATOR Deprecated.
static String	GREATER_THAN_OPERATOR Deprecated.
static String	GREATER_THAN_OR_EQUAL_OPERATOR Deprecated.
static String	LESS_THAN_OPERATOR Deprecated.
static String	LESS_THAN_OR_EQUAL_OPERATOR Deprecated.
static String	NOT_EQUAL_OPERATOR Deprecated.
private String	operator Deprecated.
private Pattern	pattern Deprecated.

Constructor Summary

Constructors

Constructor and Description
PropositionNode() Deprecated.
PropositionNode(DataNode newC, DataNode newD, String newOperator) Deprecated.

Method Summary

Modifier and Type	Method and Description
boolean	evaluate(PropertiesMap map) Deprecated. Returns the truth value of this node with the given context, either true or false.
DataNode	getC() Deprecated.
DataNode	getD() Deprecated.
String	getOperator() Deprecated.
void	setC(DataNode newC) Deprecated.
void	setD(DataNode newD) Deprecated.
void	setOperator(String newOperator) Deprecated.

Methods inherited from class java.lang.Object

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

Field Detail

EQUALS_OPERATOR

public static final String EQUALS_OPERATOR

Deprecated.

See Also:

Constant Field Values

NOT_EQUAL_OPERATOR

public static final String NOT_EQUAL_OPERATOR

Deprecated.

See Also:

Constant Field Values

LESS_THAN_OPERATOR

public static final String LESS_THAN_OPERATOR

Deprecated.

See Also:

Constant Field Values

LESS_THAN_OR_EQUAL_OPERATOR

public static final String LESS_THAN_OR_EQUAL_OPERATOR

Deprecated.

See Also:

Constant Field Values

GREATER_THAN_OPERATOR

public static final String GREATER_THAN_OPERATOR

Deprecated.

See Also:

Constant Field Values

GREATER_THAN_OR_EQUAL_OPERATOR

public static final String GREATER_THAN_OR_EQUAL_OPERATOR

Deprecated.

See Also:

Constant Field Values

EQUALS_REGULAR_EXPRESSION_OPERATOR

public static final String EQUALS_REGULAR_EXPRESSION_OPERATOR

Deprecated.

See Also:

Constant Field Values

c

private DataNode c

Deprecated.

d

private DataNode d

Deprecated.

operator

private String operator

Deprecated.

pattern

private Pattern pattern

Deprecated.

Constructor Detail

PropositionNode

public PropositionNode()

Deprecated.

PropositionNode

public PropositionNode(DataNode newC,
                       DataNode newD,
                       String newOperator)
                throws LogicalPropositionTreeException

Deprecated.

Throws:

LogicalPropositionTreeException

Method Detail

getC

public DataNode getC()

Deprecated.

setC

public void setC(DataNode newC)

Deprecated.

getD

public DataNode getD()

Deprecated.

setD

public void setD(DataNode newD)

Deprecated.

getOperator

public String getOperator()

Deprecated.

setOperator

public void setOperator(String newOperator)
                 throws LogicalPropositionTreeException

Deprecated.

Throws:

LogicalPropositionTreeException

evaluate

public boolean evaluate(PropertiesMap map)
                 throws LogicalPropositionTreeException

Deprecated.

Returns the truth value of this node with the given context, either true or false.

Specified by:

evaluate in interface BooleanNode

Parameters:

map - The context within which we are evaluating the truth value. Defines the type and value of all properties in the tree during the evaluation.

Returns:

The truth value of this node with the given context, either true or false.

Throws:

LogicalPropositionTreeException - If there was a problem determining the truth value. Usually this happens because a property was referenced as the wrong type or did not exist.