wugle.expression
Class AbstractBinaryOperator

java.lang.Object
  |
  +--wugle.expression.AbstractExpression
        |
        +--wugle.expression.AbstractBinaryOperator

All Implemented Interfaces:

BinaryOperator, java.lang.Cloneable, Expression, Operator

Direct Known Subclasses:

Implies, LogicBinaryOperator, Xor

public abstract class AbstractBinaryOperator

extends AbstractExpression

implements BinaryOperator

An abstract implementation of BinaryOperator.

AbstractBinaryOperator provides a basic implementation of BinaryOperator, but is not meant to be a full class. Subclasses should implement the appropriate operation interfaces.

Version:

0.1.3

Author:

Jacob Perkins

Field Summary

Fields inherited from class wugle.expression.AbstractExpression

log, operation

Constructor Summary

AbstractBinaryOperator(java.lang.String symbol, ExpressionOperation operation, Expression leftChild, Expression rightChild)
Initializes the Expression and sets the initial child Expressions

Method Summary

java.lang.Object	clone() Returns a copy of this Expression.
Expression	getLeftChild() Gets the left child Expression.
Expression	getRightChild() Gets the right child Expression.
boolean	isEqual(Expression expression) Tests if this Expression is equal to the given Expression.
void	setChild(Expression oldChild, Expression newChild) Replaces a current child Expression with a new child Expression
void	setLeftChild(Expression child) Sets the left child Expression.
void	setRightChild(Expression child) Sets the right child Expression.
java.lang.String	toString() Gets the String representation of the Expression.

Methods inherited from class wugle.expression.AbstractExpression

getParent, getSymbol, setParent

Methods inherited from class java.lang.Object

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

Methods inherited from interface wugle.expression.Expression

getParent, getSymbol, setParent

Constructor Detail

AbstractBinaryOperator

public AbstractBinaryOperator(java.lang.String symbol,
                              ExpressionOperation operation,
                              Expression leftChild,
                              Expression rightChild)

Initializes the Expression and sets the initial child Expressions

Parameters:

symbol - Symbol representing this Operator

operation - Object for delegating operations to

leftChild - Left child Expression

rightChild - Right child Expression

Method Detail

toString

public java.lang.String toString()

Description copied from class: AbstractExpression

Gets the String representation of the Expression.

Overrides:

toString in class AbstractExpression

Returns:

The symbol representing the Expression

See Also:

AbstractExpression.getSymbol()

clone

public java.lang.Object clone()

Description copied from interface: Expression

Returns a copy of this Expression.

Specified by:

clone in interface Expression

Overrides:

clone in class AbstractExpression

Returns:

Copy of the Expression

isEqual

public boolean isEqual(Expression expression)

Description copied from interface: Expression

Tests if this Expression is equal to the given Expression.

Specified by:

isEqual in interface Expression

Parameters:

expression - Expression to compare to

Returns:

true if they are equal

setChild

public void setChild(Expression oldChild,
                     Expression newChild)

Description copied from interface: Operator

Replaces a current child Expression with a new child Expression

Specified by:

setChild in interface Operator

Parameters:

oldChild - Child Expression to replace

newChild - Replacement child Expression

See Also:

setLeftChild(Expression), setRightChild(Expression)

getLeftChild

public Expression getLeftChild()

Description copied from interface: BinaryOperator

Gets the left child Expression.

Specified by:

getLeftChild in interface BinaryOperator

Returns:

The left child Expression, or null if there is none

See Also:

BinaryOperator.getRightChild(), BinaryOperator.setLeftChild(Expression)

setLeftChild

public void setLeftChild(Expression child)

Description copied from interface: BinaryOperator

Sets the left child Expression.

Specified by:

setLeftChild in interface BinaryOperator

Parameters:

child - The new left child Expression, or null for no child

See Also:

BinaryOperator.getLeftChild(), BinaryOperator.setRightChild(Expression)

getRightChild

public Expression getRightChild()

Description copied from interface: BinaryOperator

Gets the right child Expression.

Specified by:

getRightChild in interface BinaryOperator

Returns:

The right child Expression, or null if there is none

See Also:

BinaryOperator.getLeftChild(), BinaryOperator.setRightChild(Expression)

setRightChild

public void setRightChild(Expression child)

Description copied from interface: BinaryOperator

Sets the right child Expression.

Specified by:

setRightChild in interface BinaryOperator

Parameters:

child - The new right child Expression, or null for no child

See Also:

BinaryOperator.getRightChild(), BinaryOperator.setLeftChild(Expression)