sapphire.util

Class CalcUtil

java.lang.Object

sapphire.util.CalcUtil

All Implemented Interfaces:

java.io.Serializable

public class CalcUtil
extends java.lang.Object
implements java.io.Serializable

Enter description here

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
CalcUtil(com.labvantage.sapphire.services.ConnectionInfo connectionInfo) Creates a new instance of CalcUtil using the connectionInfo specified
CalcUtil(java.io.File rakFile, java.lang.String connectionid) Constructor for a client application with an existing connection
CalcUtil(PageContext pageContext) Creates a new instance of CalcUtil using the pageContext specified

Method Summary

Modifier and Type	Method and Description
java.math.BigDecimal	convertUnits(java.math.BigDecimal value, java.lang.String fromUnit, java.lang.String toUnit) Unit conversion of a value between two specified units
java.lang.String	evaluate(java.lang.String expression, java.util.HashMap params) Evaluates the expression substituting the params specified

Methods inherited from class java.lang.Object

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

Constructor Detail

CalcUtil

public CalcUtil(com.labvantage.sapphire.services.ConnectionInfo connectionInfo)

Creates a new instance of CalcUtil using the connectionInfo specified

Parameters:

connectionInfo - The connectionInfo that contains user connection details

CalcUtil

public CalcUtil(PageContext pageContext)

Creates a new instance of CalcUtil using the pageContext specified

Parameters:

pageContext - The pageContext from inside a jsp page.

CalcUtil

public CalcUtil(java.io.File rakFile,
                java.lang.String connectionid)

Constructor for a client application with an existing connection

Parameters:

rakFile - A remote access key file

connectionid - A valid connectionid

Method Detail

evaluate

public java.lang.String evaluate(java.lang.String expression,
                                 java.util.HashMap params)
                          throws SapphireException

Evaluates the expression substituting the params specified

Parameters:

expression - The expression to be evaluated

params - The hashmap of the params to be substituted in the expression

Returns:

The value of the evaluated expression

Throws:

SapphireException

convertUnits

public java.math.BigDecimal convertUnits(java.math.BigDecimal value,
                                         java.lang.String fromUnit,
                                         java.lang.String toUnit)
                                  throws SapphireException

Unit conversion of a value between two specified units

Parameters:

value - The numeric value that needs to be converted from one units to the other

fromUnit - The units in which the value currently is.

toUnit - The units to which the value is to be converted to.

Returns:

The value converted from "fromUnit" to "toUnit"

Throws:

SapphireException