Package edu.uiuc.ncsa.security.util.functor

Class LogicBlock

java.lang.Object

edu.uiuc.ncsa.security.util.functor.LogicBlock

All Implemented Interfaces:

JMetaMetaFunctor, JSONFunctor, Serializable

public class LogicBlock
extends Object
implements JSONFunctor

This class contains a JFunctor if-then-else block. You supply a JSONObject, this parses it into its correct elements at runtime. You may also use this as a utility to create such blocks by creating the if then else blcks, setting them and invoking the toJSON() method.

Created by Jeff Gaynor
on 2/27/18 at 4:33 PM

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor	Description
LogicBlock(JFunctorFactory factory)
LogicBlock(JFunctorFactory factory, jIf ifBlock, jThen thenBlock)	Constructor for case of no else clause.
LogicBlock(JFunctorFactory factory, jIf ifBlock, jThen thenBlock, jElse elseBlock)
LogicBlock(JFunctorFactory factory, net.sf.json.JSONObject json)

Method Summary

Modifier and Type	Method	Description
protected void	addResults(Object obj)
void	clearState()	This clears every executed functor in the antecedent and any consequents.
protected jIf	createIfBlock()	A jIf functor is a functor with the agreement that the argument in text may consists of a functor (rather than an array with a single functor).
protected JFunctor	createThenOrElseBlock(FunctorTypeImpl type)
Object	execute()
jThen	getConsequent()	The consequent is either the then or else block, depending on the antecedent (the if block).
jElse	getElseBlock()
jIf	getIfBlock()
Object	getResult()
ArrayList<Object>	getResults()
jThen	getThenBlock()
boolean	hasConsequent()
protected void	initialize()
boolean	isExecuted()
boolean	isIfTrue()
void	setElseBlock(jElse elseBlock)
void	setIfBlock(jIf ifBlock)
void	setThenBlock(jThen thenBlock)
net.sf.json.JSONObject	toJSON()
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

LogicBlock

public LogicBlock(JFunctorFactory factory)

LogicBlock

public LogicBlock(JFunctorFactory factory,
                  jIf ifBlock,
                  jThen thenBlock,
                  jElse elseBlock)

LogicBlock

public LogicBlock(JFunctorFactory factory,
                  jIf ifBlock,
                  jThen thenBlock)

Constructor for case of no else clause.

Parameters:

ifBlock -

thenBlock -

LogicBlock

public LogicBlock(JFunctorFactory factory,
                  net.sf.json.JSONObject json)

Method Detail

getResult

public Object getResult()

Specified by:

getResult in interface JMetaMetaFunctor

getConsequent

public jThen getConsequent()

The consequent is either the then or else block, depending on the antecedent (the if block). If this has not executed, then null is returned. Also, if there no else and the if clause is false, it will be empty

Returns:

hasConsequent

public boolean hasConsequent()

getElseBlock

public jElse getElseBlock()

getThenBlock

public jThen getThenBlock()

getIfBlock

public jIf getIfBlock()

createIfBlock

protected jIf createIfBlock()

A jIf functor is a functor with the agreement that the argument in text may consists of a functor (rather than an array with a single functor). This method will enclose the argument in an array if need be.

Returns:

isIfTrue

public boolean isIfTrue()

createThenOrElseBlock

protected JFunctor createThenOrElseBlock(FunctorTypeImpl type)

isExecuted

public boolean isExecuted()

clearState

public void clearState()

This clears every executed functor in the antecedent and any consequents.

initialize

protected void initialize()

addResults

protected void addResults(Object obj)

getResults

public ArrayList<Object> getResults()

execute

public Object execute()

Specified by:

execute in interface JMetaMetaFunctor

toString

public String toString()

Overrides:

toString in class Object

setIfBlock

public void setIfBlock(jIf ifBlock)

setThenBlock

public void setThenBlock(jThen thenBlock)

setElseBlock

public void setElseBlock(jElse elseBlock)

toJSON

public net.sf.json.JSONObject toJSON()

Specified by:

toJSON in interface JSONFunctor