Class UnaryTree

java.lang.Object
  |
  +--LogicTree
        |
        +--UnaryTree

Direct Known Subclasses:

Not

class UnaryTree

extends LogicTree

a logic tree with a generic unary operator

Field Summary

(package private) static java.lang.String	additionalIndentation additionalIndentation determines how much additional Indentation there is at each level of the tree when it is converted to a String.
(package private) static LogicTree	C0 C0 is a tree for the constant 0 (false).
(package private) static LogicTree	C1 C1 is a tree for the constant 1 (true).
(package private) java.lang.String	op the operator
(package private) LogicTree	subtree the one subtree of this tree

Constructor Summary

(package private)

UnaryTree(java.lang.String op, LogicTree subtree) Construct a logic tree with a generic unary operator.

Method Summary

static LogicTree	and(LogicTree leftSubtree, LogicTree rightSubtree) pseudo-constructor for an "and" tree
static LogicTree	failure(java.lang.String cause) pseudo-constructor for a failure
static LogicTree	iff(LogicTree leftSubtree, LogicTree rightSubtree) pseudo-constructor for an "iff" tree
static LogicTree	implies(LogicTree leftSubtree, LogicTree rightSubtree) pseudo-constructor for an "implies" tree
boolean	isFailure() Tell whether this tree is a failure.
static void	main(java.lang.String[] arg) test program that constructs several trees and displays them
static LogicTree	not(LogicTree subtree) pseudo-constructor for a "not" tree
static LogicTree	or(LogicTree leftSubtree, LogicTree rightSubtree) pseudo-constructor for an "or" tree
java.lang.String	toString() Convert the tree to a String representation.
void	toStringBuffer(java.lang.String indentation, java.lang.StringBuffer buffer) Put the tree's representation into a StringBuffer.
static LogicTree	var(char name) pseudo-constructor for a logical variable

Methods inherited from class java.lang.Object

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

Field Detail

op

java.lang.String op

the operator

subtree

LogicTree subtree

the one subtree of this tree

C0

static LogicTree C0

C0 is a tree for the constant 0 (false).

C1

static LogicTree C1

C1 is a tree for the constant 1 (true).

additionalIndentation

static java.lang.String additionalIndentation

additionalIndentation determines how much additional Indentation there is at each level of the tree when it is converted to a String.

Constructor Detail

UnaryTree

UnaryTree(java.lang.String op,
          LogicTree subtree)

Construct a logic tree with a generic unary operator.

Method Detail

toStringBuffer

public void toStringBuffer(java.lang.String indentation,
                           java.lang.StringBuffer buffer)

Description copied from class: LogicTree

Put the tree's representation into a StringBuffer.

Specified by:

toStringBuffer in class LogicTree

toString

public java.lang.String toString()

Convert the tree to a String representation.

Overrides:

toString in class java.lang.Object

isFailure

public boolean isFailure()

Tell whether this tree is a failure.

iff

public static LogicTree iff(LogicTree leftSubtree,
                            LogicTree rightSubtree)

pseudo-constructor for an "iff" tree

implies

public static LogicTree implies(LogicTree leftSubtree,
                                LogicTree rightSubtree)

pseudo-constructor for an "implies" tree

or

public static LogicTree or(LogicTree leftSubtree,
                           LogicTree rightSubtree)

pseudo-constructor for an "or" tree

and

public static LogicTree and(LogicTree leftSubtree,
                            LogicTree rightSubtree)

pseudo-constructor for an "and" tree

not

public static LogicTree not(LogicTree subtree)

pseudo-constructor for a "not" tree

var

public static LogicTree var(char name)

pseudo-constructor for a logical variable

failure

public static LogicTree failure(java.lang.String cause)

pseudo-constructor for a failure

main

public static void main(java.lang.String[] arg)

test program that constructs several trees and displays them