com.sage.accpac.sm.crystal.ufl
Class IsTrue

java.lang.Object
  com.sage.accpac.sm.crystal.ufl.AbstractAccpacFormulaFunction
      com.sage.accpac.sm.crystal.ufl.IsTrue

All Implemented Interfaces:

com.crystaldecisions.reports.formulas.FormulaFunction, com.crystaldecisions.reports.formulas.FormulaFunctionDefinition

public final class IsTrue
extends AbstractAccpacFormulaFunction

We recommend that reports avoid using IsTrue. An analysis of Sage ERP Accpac's own reports show that only 6 existing OE reports use IsTrue, but those reports (being ones like OE invoices) are often customized. The only reason IsTrue is being ported is so that those customized reports won't have to change.

IsTrue returns true for any string is considered not a "false" string. In other words, case-insensitive "false", "f", or "0" are considered false. Everything else is considered true.

The Crystal arguments to this function are:

1. The string to test

The 6 OE reports test the same set of numeric fields. Those fields go through an inefficient conversion to strings, which are tested by IsTrue. In one of those reports, one test uses IsTrue while another equivalent test avoids IsTrue - it simply sees if the fields are non-zero. This corrected test is in line with the C concept of 0 being false and anything else being true.

For this reason, the Java UFL will differ from the existing C UFL of the same name. (The C UFL considered case-insensitive "true", "t", or "1" to be true and everything else to be false.)

Constructor Summary

IsTrue()

Method Summary

com.crystaldecisions.reports.common.value.FormulaValue	evaluate(com.crystaldecisions.reports.formulas.FormulaValueReference[] arguments)
com.crystaldecisions.reports.formulas.FormulaFunctionArgumentDefinition[]	getArguments()
java.lang.String	getIdentifier()
com.crystaldecisions.reports.common.value.FormulaValueType	getReturnType()

Methods inherited from class com.sage.accpac.sm.crystal.ufl.AbstractAccpacFormulaFunction

getIntegerArgument, getStringArgument, validateArgumentValues

Methods inherited from class java.lang.Object

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

Constructor Detail

IsTrue

public IsTrue()

Method Detail

getIdentifier

public java.lang.String getIdentifier()

getReturnType

public com.crystaldecisions.reports.common.value.FormulaValueType getReturnType()

getArguments

public com.crystaldecisions.reports.formulas.FormulaFunctionArgumentDefinition[] getArguments()

evaluate

public com.crystaldecisions.reports.common.value.FormulaValue evaluate(com.crystaldecisions.reports.formulas.FormulaValueReference[] arguments)
                                                                throws com.crystaldecisions.reports.formulas.FormulaFunctionCallException

Throws:

com.crystaldecisions.reports.formulas.FormulaFunctionCallException