Package de.gebit.integrity.operations.standard.operands

Class SubtractionNode

java.lang.Object

de.gebit.integrity.operations.standard.operands.OperatorNode<BigDecimal,BigDecimal>

de.gebit.integrity.operations.standard.operands.SubtractionNode

public class SubtractionNode
extends OperatorNode<BigDecimal,BigDecimal>

Subtracts one value from the other.

Author:

Rene Schneider - initial API and implementation

Constructor Summary

Constructors

Constructor	Description
SubtractionNode(Operation anOperation, Object aLeftOperand, Object aRightOperand)	Creates a new instance.

Method Summary

Modifier and Type	Method	Description
protected Object	evaluateInternal(BigDecimal aLeftOperand, BigDecimal aRightOperand)	Must be implemented by subclasses to implement the actual evaluation of this node.

Methods inherited from class de.gebit.integrity.operations.standard.operands.OperatorNode

evaluate, getEvaluatedLeftOperand, getEvaluatedRightOperand

Methods inherited from class java.lang.Object

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

Constructor Details

SubtractionNode

public SubtractionNode(Operation anOperation,
 Object aLeftOperand,
 Object aRightOperand)

Creates a new instance.

Parameters:

aLeftOperand -

aRightOperand -

Method Details

evaluateInternal

protected Object evaluateInternal(BigDecimal aLeftOperand,
 BigDecimal aRightOperand)
                           throws UnexecutableException

Description copied from class: OperatorNode

Must be implemented by subclasses to implement the actual evaluation of this node. It will get evaluated and converted operands and needs to return the result of the evaluation.

Specified by:

evaluateInternal in class OperatorNode<BigDecimal,BigDecimal>

Parameters:

aLeftOperand - the evaluated left operand

aRightOperand - the evaluated right operand

Returns:

the result of the evaluation

Throws:

UnexecutableException