Package io.atlasmap.expression.internal

Class UnaryExpression

java.lang.Object

io.atlasmap.expression.internal.UnaryExpression

All Implemented Interfaces:

Expression

public abstract class UnaryExpression
extends Object
implements Expression

An expression which performs an operation on two expression values.

Version:

$Revision: 1.3 $

Field Summary

Fields

Modifier and Type	Field	Description
protected Expression	right	right

Fields inherited from interface io.atlasmap.expression.Expression

CACHE

Constructor Summary

Constructors

Constructor	Description
UnaryExpression(Expression left)	A constructor.

Method Summary

Modifier and Type	Method	Description
static BooleanExpression	createBooleanCast(Expression left)	Creates boolean cast.
static BooleanExpression	createInExpression(VariableExpression right, List<Object> elements, boolean not)	Creates in expression.
static Expression	createNegate(Expression left)	Creates negate expression.
static BooleanExpression	createNOT(BooleanExpression left)	Creates not expression.
boolean	equals(Object o)	TODO: more efficient hashCode()
abstract String	getExpressionSymbol()	Returns the symbol that represents this binary expression.
Expression	getRight()	Gets the right expression.
int	hashCode()	TODO: more efficient hashCode()
void	setRight(Expression expression)	Sets the right expression.
String	toString()

Methods inherited from class java.lang.Object

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

Methods inherited from interface io.atlasmap.expression.Expression

evaluate

Field Detail

right

protected Expression right

right

Constructor Detail

UnaryExpression

public UnaryExpression(Expression left)

A constructor.

Parameters:

left - left

Method Detail

createNegate

public static Expression createNegate(Expression left)

Creates negate expression.

Parameters:

left - left

Returns:

result

createInExpression

public static BooleanExpression createInExpression(VariableExpression right,
                                                   List<Object> elements,
                                                   boolean not)

Creates in expression.

Parameters:

right - right

elements - elements

not - not

Returns:

result

createNOT

public static BooleanExpression createNOT(BooleanExpression left)

Creates not expression.

Parameters:

left - left

Returns:

result

createBooleanCast

public static BooleanExpression createBooleanCast(Expression left)

Creates boolean cast.

Parameters:

left - left

Returns:

result

getRight

public Expression getRight()

Gets the right expression.

Returns:

right

setRight

public void setRight(Expression expression)

Sets the right expression.

Parameters:

expression - right

toString

public String toString()

Overrides:

toString in class Object

hashCode

public int hashCode()

TODO: more efficient hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object o)

TODO: more efficient hashCode()

Overrides:

equals in class Object

getExpressionSymbol

public abstract String getExpressionSymbol()

Returns the symbol that represents this binary expression. For example, addition is represented by "+"

Returns:

expression symbol string