org.ujac.util.exi
Class VariableOperand

java.lang.Object
  org.ujac.util.exi.Operand
      org.ujac.util.exi.VariableOperand

All Implemented Interfaces:

Serializable, Cloneable

public class VariableOperand
extends Operand

Name: VariableOperand
Description: A class implementing operands holding variables.

Author:

lauerc

See Also:

Serialized Form

Constructor Summary

VariableOperand()
Constructs a VariableOperand instance with specific attributes.

VariableOperand(char[] source, int absolutePosition, int relativePosition, int length)
Constructs an VariableOperand instance with specific arguments.

VariableOperand(Operand outer)
Constructs an VariableOperand instance with specific arguments.

Method Summary

Object	clone()
Object	getObject() Returns the object, connected to the variable.
Object	getValue() Gets the operand value.
String	getVariable() Returns the variable.
boolean	isNegative() Tells whether the variable is signed negative or not.
boolean	isSimple() Tells whether the operand is a simple one or not.
void	setNegative(boolean negative) Sets the negative flag for the variable.
void	setObject(Object object) Sets the object, connected to the variable.
void	setVariable(String variable) Sets the variable.
String	toString()

Methods inherited from class org.ujac.util.exi.Operand

getAbsolutePosition, getCode, getForcedType, getLength, getRelativePosition, getSource, getTotalLength, getTotalPosition, setAbsolutePosition, setForcedType, setLength, setRelativePosition, setSource, setTotalLength, setTotalPosition

Methods inherited from class java.lang.Object

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

Constructor Detail

VariableOperand

public VariableOperand()

Constructs a VariableOperand instance with specific attributes.

VariableOperand

public VariableOperand(char[] source,
                       int absolutePosition,
                       int relativePosition,
                       int length)

Constructs an VariableOperand instance with specific arguments.

Parameters:

source - The textual source for the expression.

absolutePosition - The absolute start position of the expression within the source.

relativePosition - The relative start position of the expression within the source.

length - The length of the expression.

VariableOperand

public VariableOperand(Operand outer)

Constructs an VariableOperand instance with specific arguments. Copies the source, totalPosition and totalLength from the outer expression.

Parameters:

outer - The outer expression.

Method Detail

isSimple

public boolean isSimple()

Description copied from class: Operand

Tells whether the operand is a simple one or not.

Specified by:

isSimple in class Operand

Returns:

true if the operand is instance of class VariableOperand else false.

See Also:

Operand.isSimple()

getVariable

public String getVariable()

Returns the variable.

Returns:

The variable name.

setVariable

public void setVariable(String variable)

Sets the variable.

Parameters:

variable - The variable to set

getObject

public Object getObject()

Returns the object, connected to the variable.

Returns:

The object's value.

setObject

public void setObject(Object object)

Sets the object, connected to the variable.

Parameters:

object - The object to set

isNegative

public boolean isNegative()

Tells whether the variable is signed negative or not.

Returns:

true if the variable is signed negative, else false.

setNegative

public void setNegative(boolean negative)

Sets the negative flag for the variable.

Parameters:

negative - true if the variable shall be signed negative, else false.

getValue

public Object getValue()

Gets the operand value.

Specified by:

getValue in class Operand

Returns:

the value of the operand.

toString

public String toString()

Overrides:

toString in class Object

See Also:

Object.toString()

clone

public Object clone()

Overrides:

clone in class Operand

See Also:

Object.clone()