hussam.math.operations
Class Variable

java.lang.Object
hussam.math.operations.Variable

All Implemented Interfaces:

Operation, java.io.Serializable, java.lang.Cloneable

Direct Known Subclasses:

Constant

public class Variable
extends java.lang.Object
implements Operation

A Variable is an operation indicating a variable amount. A Variable has a name indicating a key mapping for the operation it stores.

Since:

2.0

Author:

Hussam Almulhim حسام الملحم

See Also:

Operation, ConstantNumber, Constant, Function, Serialized Form

Variable

public Variable(java.lang.String name)

Construcs a New Variable given the name.

Parameters:

name - The name of the variable.

getName

public java.lang.String getName()

Returns the name of the variable.

Returns:

name of the Variable.

setOperation

public void setOperation(Operation o)

Sets the operation from which the result of this variable will be calculated. For example, you can set this variable to a ConstantNumber using:

variable.setOperation(new ConstantNumber(50));
 System.out.println(variable.result());

 Output:
 50.0

Parameters:

o - The operation from which the result will be calculated.

result

public double result()
              throws MathException

Description copied from interface: Operation

returns the result of the operation.

Specified by:

result in interface Operation

Returns:

The result value.

Throws:

MathException - if there is a Math Exception!!

toString

public java.lang.String toString()

Returns the name of the variable.

Overrides:

toString in class java.lang.Object

Returns:

the name of the variable.

clone

public Variable clone(OperatorSourceImpl s)
               throws java.lang.CloneNotSupportedException

Clones this Variable only if it is not contained in the operatorSource given. Otherwise, it returns this Variable.

Specified by:

clone in interface Operation

Parameters:

s - The OperatorSourceImpl.

Returns:

Returns the cloned operation.

Throws:

java.lang.CloneNotSupportedException - If the operation is not clonable.

See Also:

ConstantNumber.clone(hussam.math.operations.dataBase.OperatorSourceImpl), clone(hussam.math.operations.dataBase.OperatorSourceImpl)

optimize

public Operation optimize()

Optimizes the hidden operation.

Specified by:

optimize in interface Operation

Returns:

This Variable.