ILOG OPL Development Studio Language Reference Manual

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Automatic conversion to a stringWhen a function or a method which expects a string as one of its arguments is passed anonstring value, this value is automatically converted to a string. For example, if the stringmethod indexOf is passed a number as its first argument, this number is treated like itsstring representation:Similarly, operators which take string operands automatically convert nonstring operands tostrings:The conversion to a string uses the toString method of the given value. All built in valueshave a toString method.224I L O G O P L D E V E L O P M E N T S T U D I O L A N G U A G ER E F E R E N C E M A N U A L
String propertiesThere is a single, read-only string property.String propertySyntax Valuestring.length Number of characters in string. This is a read-only property.Examples:"abc".length 3 "".length 0I L O G O P L D E V E L O P M E N T S T U D I O L A N G U A G ER E F E R E N C E M A N U A L225
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CopyrightCOPYRIGHT NOTICECopyright
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C O N T E N T STable of contentsLan
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Language Reference ManualThis manua
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OPL, the modeling languagePresents
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ModelsDescribes the overall structu
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}ctMaxTotal:Gas + Chloride
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Data typesDescribes basic data type
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Basic data typesDescribes integers,
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FloatsShows how to declare floats i
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Data structuresDescribes how the ba
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The range float declarationA range
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{Edge} Edges = {, , };int a[Edges]
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TuplesData structures in OPL can al
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In Declaring a tuple using a set of
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SetsDefinitionSets are non-indexed
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Sorted and ordered setsBy default,
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The data shows that the team includ
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Data sourcesDescribes data and data
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Data initializationDefines internal
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{Ship} shipData = ...;and assume th
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* .dat file */a = #[“Monday”: 1
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}}the same can be expressed with th
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Initializing tuplesYou initialize t
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Initializing setsYou can initialize
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As generic setsOPL supports generic
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Initialization and memory allocatio
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Database initializationDescribes ho
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Supported databasesSupported databa
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Reading from a databaseIn OPL, data
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DBconnection db("oracle9", connecti
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Note: OPL supports the same element
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Spreadsheet Input/OutputDescribes h
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Connection to a spreadsheetThe spre
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♦Sets of tuples: The data has to
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Data consistencyDefines the purpose
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Data membership consistencyThe keyw
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AssertionsOPL provides assertions t
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execute{writeln(s2);s1.add(3);write
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Decision typesVariables in an OPL a
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tuple Route {City orig;City dest;}{
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Dynamic collection of elements into
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The all syntaxThen, the all syntax
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Appending arraysYou can also concat
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ExpressionsDescribes data and decis
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Data and decision variable identifi
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(condition)?thenExpr : elseExprwher
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Piecewise-linear functionsPiecewise
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eakpoint[k-1] < ship[o][d] 0; 0}(1,
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Figure The discontinuous piecewise
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x == y;signx == piecewise{0->0; 2->
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Functions over setsFunction Descrip
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ConstraintsSpecifies the constraint
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Using constraintsExplains how to ap
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Conditional constraintsIf-then-else
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Constraint labelsExplains why label
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Labeling constraintsTo label a cons
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subject to {forall( p in Products ,
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Limitations to constraint labelingN
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Compatibility between constraint na
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Types of constraintsDescribes const
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Discrete constraintsDiscrete constr
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Implicit constraintsImplicit constr
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Symbol=>!===MeaningImplyDifferent f
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Constraints available in constraint
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♦Interval grouping constraint: al
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Formal parametersDescribes basic fo
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{forall(i in 1..8)forall(j in 1..8:
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Tuples of parametersOPL allows tupl
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int array[i in set1] = ((sum(j in s
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SchedulingDescribes how to model sc
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IntroductionILOG OPL Development St
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Piecewise linear and stepwise funct
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I L O G O P L D E V E L O P M E N T
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e equal to 1. For a fixed interval
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ExamplesFor examples of using inter
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Precedence constraints between inte
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A logical constraint between interv
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Important:The piecewise linear func
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♦prev(p, a, b) states that if bot
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Cumulative functionsIn scheduling p
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Constraints on cumul function expre
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Syntax and examplesFor the syntax a
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♦That everywhere over a given fix
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in state s. If algn e is true, it m
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NotationsThe main notations used th
Page 173 and 174: ILOG Script for OPLDescribes the st
Page 175 and 176: Language structurePresents the stru
Page 177 and 178: SyntaxWhat composes a scripting sta
Page 179 and 180: Compound statementsA compound state
Page 181 and 182: IdentifiersIdentifiers are used to
Page 183 and 184: Expressions in ILOG ScriptExpressio
Page 185 and 186: LiteralsLiterals can represent the
Page 187 and 188: Syntax of different types of expres
Page 189 and 190: Property accessThere are two ways o
Page 191 and 192: Function callsSyntactic shorthandSy
Page 193 and 194: Special operatorsSpecial operator s
Page 195 and 196: Other operatorsOther operators are
Page 197 and 198: StatementsA statement can be a cond
Page 199 and 200: SyntaxEffectfor (var i=0; i < a.len
Page 201 and 202: Outside a function definitionAt the
Page 203 and 204: Default valuesDefault value syntaxS
Page 205 and 206: Built-in values and functionsPresen
Page 207 and 208: NumbersNumber representations and f
Page 209 and 210: IntroductionNumbers can be expresse
Page 211 and 212: Hexadecimal numbersA hexadecimal nu
Page 213 and 214: Special numbersThere are three spec
Page 215 and 216: Number methodsThere is only one num
Page 217 and 218: Numeric constantsThe following nume
Page 219 and 220: Syntax~ xx > yx >>> yEffectBitwise
Page 221 and 222: ILOG Script stringsString represent
Page 223: Examples of string literals using e
Page 227 and 228: Syntaxstring.toUpperCase()EffectExa
Page 229 and 230: String operatorsString operatorsSyn
Page 231 and 232: ILOG Script BooleansBoolean represe
Page 233 and 234: Automatic conversion to BooleanWhen
Page 235 and 236: Logical operatorsThe following Bool
Page 237 and 238: ILOG Script arraysArray representat
Page 239 and 240: Array constructorThe array construc
Page 241 and 242: Array methodsArray methodsSyntaxarr
Page 243 and 244: ObjectsObject representation and fu
Page 245 and 246: Defining methodsSince a method is r
Page 247 and 248: Object constructorObject constructo
Page 249 and 250: Built-in methodsThere is only one o
Page 251 and 252: DatesDate representation and functi
Page 253 and 254: Date constructorThe date constructo
Page 255 and 256: Date methodsDate methodsSyntaxdate.
Page 257 and 258: Date functionsDate functionsSyntaxD
Page 259 and 260: The null valueThe null value is a s
Page 261 and 262: ILOG Script functionsIn ILOG Script
Page 263 and 264: I N D E XIndexABabs, OPL function 9
Page 265 and 266: limitations in tuples 29ranges 22se
Page 267 and 268: GHIgeneric sets 51, 137groundbreakp
Page 269 and 270: NOfor the null value 259for the und
Page 271 and 272: sparsityand multidimensional arrays
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ILOG OPL Development Studio Language Reference Manual

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