local.tomas.expr
Class BinaryTerm

java.lang.Object
  local.tomas.expr.BinaryTerm

All Implemented Interfaces:

Serializable, Expression

Direct Known Subclasses:

AdditionTerm, AndTerm, ConcatenationTerm, DivisionTerm, EqualityTerm, GreaterEqualTerm, GreaterTerm, InequalityTerm, InTerm, LessEqualTerm, LessTerm, LikeTerm, MatchTerm, MultiplicationTerm, NotInTerm, NotLikeTerm, OrTerm, SubtractionTerm

public abstract class BinaryTerm
extends Object
implements Expression

This class defines a binary term (having two operands) within an expression.

Author:

Teubner

See Also:

Serialized Form

Field Summary

protected Expression	left Left operand.
protected Expression	right Right operand.

Constructor Summary

protected	BinaryTerm() Default constructor.
protected	BinaryTerm(Expression left, Expression right) Constructor using fields.

Method Summary

boolean	equals(Object obj) Compares this object against the specified object.
Expression	getLeft() Get left operand.
Expression	getRight() Get right operand.
int	hashCode()
void	setLeft(Expression left) Set left operand.
void	setRight(Expression right) Set right operand.

Methods inherited from class java.lang.Object

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

Methods inherited from interface local.tomas.expr.Expression

greet

Field Detail

left

protected Expression left

Left operand.

right

protected Expression right

Right operand.

Constructor Detail

BinaryTerm

protected BinaryTerm()

Default constructor.

BinaryTerm

protected BinaryTerm(Expression left,
                     Expression right)

Constructor using fields.

Parameters:

left - left operand

right - right operand

Method Detail

getLeft

public Expression getLeft()

Get left operand.

Returns:

left operand.

setLeft

public void setLeft(Expression left)

Set left operand.

Parameters:

left - left operand.

getRight

public Expression getRight()

Get right operand.

Returns:

right operand.

setRight

public void setRight(Expression right)

Set right operand.

Parameters:

right - right operand.

equals

public boolean equals(Object obj)

Compares this object against the specified object. The result is true if and only if the argument is not null and is a BinaryTerm object with equal operands and operator as this object.

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object