com.ibm.tivoli.maximo.report.expr

Class SafeDivideValidator

java.lang.Object

com.ibm.tivoli.maximo.report.expr.Collector

com.ibm.tivoli.maximo.report.expr.TypeCollector

com.ibm.tivoli.maximo.report.expr.ValueCollector

com.ibm.tivoli.maximo.report.expr.SafeDivideValidator

All Implemented Interfaces:

Node.Visitor

public class SafeDivideValidator
extends ValueCollector

Divide By Attribute tests an expression and for cases when a field attribute is being used in the denominator of the expression. It also finds places where a Function or Literal is being used, since those can lead to Divide By Zero as well.

Author:

sls

Nested Class Summary

Nested classes/interfaces inherited from class com.ibm.tivoli.maximo.report.expr.Collector

Collector.Mode

Nested classes/interfaces inherited from interface com.ibm.tivoli.maximo.report.expr.Node.Visitor

Node.Visitor.State, Node.Visitor.Status

Constructor Summary

Constructors

Constructor and Description
SafeDivideValidator(java.lang.String objectname)

Method Summary

Modifier and Type	Method and Description
boolean	accept(Node n) Return true if this node can be accepted by the Collector
java.lang.String	getDenominator(Node divOperand) returns the attribute that is in the denominator
Node	getDenominatorNode(Node divOperand) Get the attribute/function/keyword node that is being used in the denominoator portion of the divide expression.

Methods inherited from class com.ibm.tivoli.maximo.report.expr.ValueCollector

getValues, isIgnoreCase

Methods inherited from class com.ibm.tivoli.maximo.report.expr.Collector

first, getNodes, visit

Methods inherited from class java.lang.Object

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

Constructor Detail

SafeDivideValidator

public SafeDivideValidator(java.lang.String objectname)

Method Detail

accept

public boolean accept(Node n)
               throws java.rmi.RemoteException,
                      MXException

Description copied from class: Collector

Return true if this node can be accepted by the Collector

Overrides:

accept in class ValueCollector

Returns:

Throws:

java.rmi.RemoteException

MXException

getDenominator

public java.lang.String getDenominator(Node divOperand)
                                throws java.rmi.RemoteException,
                                       MXException

returns the attribute that is in the denominator

Parameters:

divOperand -

Returns:

Throws:

MXException

java.rmi.RemoteException

getDenominatorNode

public Node getDenominatorNode(Node divOperand)
                        throws java.rmi.RemoteException,
                               MXException

Get the attribute/function/keyword node that is being used in the denominoator portion of the divide expression.

Parameters:

divOperand -

Returns:

Throws:

MXException

java.rmi.RemoteException