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Sybase 7.5 Defining interfaces, Interface properties, An interface has the following properties

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Defining interfaces

Defining interfaces

An interface is a type of class that is similar to a class but which is used to implement the specification of an abstraction of a class. An interface is a collection of operations used to specify the externally visible behavior of a class. It has no implementation of its own.

A class that implements all the operations in an interface is said to realize the interface. A class that requires one or more operations in an interface is said to use the interface. The interface includes the signatures of the operations of the class. Usually, an interface specifies only a limited part of the behavior of a class. A class can implement one or more interfaces.

The following example shows a Name (interface) that realizes the action

GetName for an Employee (class).

Interface properties

An interface has the following properties:

Property	Description
Name	Name of the interface

Code	Reference name for the interface

Comment	Descriptive comment for the interface

Stereotype	Subclassification of an interface derived from an
	existing one. Extends the semantics of an interface
	without changing it's structure

Visibility	Visibility of the interface, whose value denotes
	how it may be seen outside its enclosing name
	space

Generate	Indicates that the class will be automatically
	included among the objects generated from the
	model when you launch the generation process

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Sybase 7.5 manual Defining interfaces, Interface properties, An interface has the following properties

Contents

User’s Guide Page Contents Changing an association into an associative class 102 Modifying the code of an implementation operation100 103111 112Generating Objects from an OOM 179 Using Object Languages 229 ViiViii Subject Audience Where to find information About This BookIf you want to Use these parts of the bookContents Object-Oriented Model BasicsFunctional overview Build an Object-Oriented Model OOMUML and object-oriented modeling OOM roles What is an OOM?OOM creation Object Objects in an OOMAn OOM represents the interaction of the following objects Selection Tool DescriptionCreating a new OOM To create an OOMObject-Oriented Model Basics An OOM has the file extension .OOM Opening an existing OOMTo open an existing OOM Classes Defining OOM model optionsYou can set the following option for classes in an OOM Non-divergence To define OOM model optionsResult To modify the model properties Defining OOM propertiesLength Defining OOM properties Building an Object-Oriented Model Defining packages Package propertiesTo modify the package display preferences Displaying text in package symbolsPreference Defining packages Defining classes Property Description Class propertiesClass has the following general properties Maximum lengthModify or creating Analyzing class propertiesStereotype New stereotypesType StereotypeCardinality Creating a classVisibility VisibleCreating a class from the list of classes Accessing the list of classesCreating a class from the Browser To create a class from the BrowserTo create a class in a diagram Creating a class from a diagramInner classes Attaching an inner class to a class Opening property sheets at last accessedTo declare an inner class within a class Building an Object-Oriented Model Detaching an inner class from a class To detach an inner class from a classModifying class properties from its property sheet ClassifiersModifying class properties To modify class properties from its property sheetModifying class properties from the list of classes To modify class properties from the list of classesAdding objects to a class Adding an attribute to a class To add an attribute to a classAdding an operation to a class To add an operation to a classDefining classes Preview the code of a class or an interface To preview the code of a classDisplaying text in class symbols To modify the class display preferencesBuilding an Object-Oriented Model Interface properties Defining interfacesAn interface has the following properties Creating an interface from the Browser Analyzing interface propertiesCreating an interface VisibilityTo create an interface in a diagram Creating an interface from a diagramAccessing the list of interfaces Creating an interface from the list of interfacesModifying interface properties from its property sheet Modifying interface propertiesTo modify interface properties from its property sheet To modify interface properties from the list of interfaces Modifying interface properties from the list of interfacesInterface property sheet opens to the General Select Model InterfacesAdding inner classes to an interface Adding objects to an interfaceYou can add the following objects to an interface Adding an attribute to an interfaceTo add an attribute to an interface Building an Object-Oriented Model Adding an operation to an interface To add an operation to an interfacePreview the code of an interface To preview the code of an interfaceDisplaying text in interface symbols Code Preview page appears Click OKTo modify the interface display preferences Defining attributes Attribute properties An attribute has the following propertiesAnalyzing attribute properties Data TypeCreating an attribute from the Browser Creating an attributeMultiplicity To create an attribute from the BrowserTo create an attribute by inserting it in the list Accessing the list of attributesCreating an attribute from the list of attributes Select Model Attributes. The list of attributes appearsCreating an attribute from a class in a diagram To create an attribute from a class in a diagramModifying attribute properties Modifying attribute properties from its property sheet To modify attribute properties from its property sheetTo modify attribute properties from the list of attributes Modifying attribute properties from the list of attributesSelect Model Attributes Attaching an attribute to a domain To attach an attribute to a domainAttribute property sheet opens to the General Copying an attribute to another class To copy an attribute to another classAn attribute has the following display preferences Displaying text in attribute symbolsWhen selected To modify the display preferencesBuilding an Object-Oriented Model Identifier properties Defining identifiersAn identifier has the following properties You can create an identifier from a class Creating an identifierTo create an identifier You can add attributes to an identifier Adding attributes to an identifierTo add attributes to an identifier Modifying identifier properties from its property sheet Modifying identifier propertiesTo modify identifier properties from its property sheet Modifying identifier properties from the list of identifiers Operation properties Defining operationsAn operation has the following properties Creating an operation from the Browser Analyzing operation propertiesCreating an operation To create an operation from the BrowserTo create an operation by inserting it in the list Accessing the list of operationsCreating an operation from the list of operations Select Model Operations. The list of operations appearsCreating an operation from a class in a diagram To create an operation from a class in a diagramModifying operation properties from its property sheet Modifying operation propertiesTo modify operation properties from its property sheet To modify operation properties from the list of operations Modifying operation properties from the list of operationsOperation property sheet opens to the General Select Model OperationsAdding constructors and destructors to a class Adding a Default constructor and destructor to a class To add a Default constructor and destructor to a classBuilding an Object-Oriented Model Adding a Copy constructor to a class To add a Copy constructor to a classAdding a duplicate operation to a class Adding operations to a classTo add a duplicate operation to a class Adding an operation from a parent class To add an inherited operation to a classAdding Getter and Setter operations to a class OperationDefining operations Creating an implementation operation To create an implementation operation Modifying the code of an implementation operation To modify the code of an implementation operationCopying an operation to another class To copy an operation to another classDisplaying text in operation symbols An operation has the following display preferencesTo modify the display preferences Modify the operation display preferences Click OK Parameter properties Defining parametersDirection Creating a parameter To create a parameterParameter property sheet opens to the General Generalization properties Defining generalizationsGeneralization has the following properties Creating a generalization Analyzing generalization propertiesTo create a generalization Link appears between the two objects Dragging a generalization to a different classModifying generalization properties from its property sheet Modifying generalization propertiesTo modify generalization properties from its property sheet Displaying text in generalization symbols Generalization has the following display preferencesTo modify the display preferences Association Ends Omitted when end names are usedDefining associations Class plays as viewed by the opposite classAssociation properties An association has the following propertiesCreating an association Creating an association outside of a diagramTo create an association in a diagram Dragging an association to a different classAssociation property sheet opens to the General Analyzing cardinality properties100 101 Association role propertiesOrdering IndicatesTo change an association into an associative class Changing an association into an associative classAggregation/composition of an Association Right-click an associationTo modify association properties from its property sheet Modifying association propertiesModifying association properties from its property sheet 103Double-click the association in the model Modifying cardinality propertiesTo modify association cardinality properties 104105 To modify the association display preferences Displaying text in association symbols106 107 Dependency has the following properties Defining dependenciesDependency properties 108To create a dependency Creating a dependency109 Dragging a dependency to a different class 110To modify dependency properties from its property sheet Modifying dependency propertiesModifying dependency properties from its property sheet 111Dependency has the following display preferences Displaying text in dependency symbols112 113 Realization has the following properties Defining realizationsRealization properties 114Dragging a realization to a different class Creating a realizationTo create a realization 115Modifying a realization from its property sheet Modifying realization properties116 To modify realization properties from its property sheet 117Realization has the following display preferences Displaying text in realization symbolsModifying a realization from the list of realizations 118119 Each domain definition includes the following properties Defining domainsDomain properties 120You create a domain from the list of domains Accessing the List of DomainsCreating a domain To create a domainPrecision Indicating data type, length, and precisionLength 122To select a data type for a domain from the list Selecting a data type for a domainSelecting a data type for a domain from the list 123To select a data type for a domain from its property sheet Selecting a data type for a domain from its property sheetUndefined data type Selecting a data type from a list of standard data typesChange of data type appears in the list of domains Selecting a data type from a list of standard data types125 Character data types Numeric data types126 To select a data type from a list of standard data types Time data typesOther data types Selecting from the Data Type dropdown listbox128 To modify domain properties Accessing a property sheet from the BrowserModifying domain properties 129Defining check parameters Setting standard check parameters for objects130 131 Defining additional check parameters for objectsTo set standard parameters VariableTo define additional check parameters Using a validation rule in check parameters132 Validation rule expressions To use a validation rule in check parameters133 134 Managing Object-Oriented Models 135Object parameters verified by Check model Checking an OOM136 137 Indicating error severityOOM check options Message DescriptionChecking a OOM Objects selected in the diagramObject selection in the Check Model To check a OOM139 Selecting all or clearing all checkboxes 140Dockable result window Symbol OptionMaking corrections based on OOM check results 141Making automatic corrections to the OOM Making manual corrections to an OOM143 Merging two OOM 144Opening a Rose model in an OOM To open a Rose model in PowerDesigner145 Generalization Association Objects importedAll objects Class 146Interface Objects not importedPackage Class AttributeDependency OperationGeneralization 148Reverse Engineering 149Parsing What is reverse engineering?150 Inner classes Reverse engineering JavaTogether classes that logically belong together Outer classComments Reverse engineering Java optionsJava code To define Java reverse engineering optionsTo load a JDK library model Loading a JDK library model in the workspace153 Select the .java radio button Reverse engineering Java source files without code bodyTo reverse java without code body 154155 To reverse engineer .java files Reverse engineering Java source filesSelect the Ignore operation body checkbox Click OK 156Reversing without the body of the code 157Multi-selection To reverse engineer compiled Java files to a diagramReverse engineering compiled Java files 158159 160 To reverse engineer Java files from a source directory Reverse engineering Java files from a source directory161 162 Reverse engineering archived .jar or .zip files To reverse engineer .jar or .zip files to a diagram163 164 165 Reverse engineering PowerBuilder options Reverse engineering PowerBuilder166 To define PowerBuilder reverse engineering options 167To load a PowerBuilder library model Loading a PowerBuilder library model in the workspace168 Reverse engineering objects from a PowerBuilder application 169170 Reverse engineering objects from SRU files To reverse engineer PowerBuilder objects from SRU files171 172 173 Reverse engineering XML options XML SchemaReverse engineering XML XML DataXML files can be reversed into an OOM Reverse engineering XML filesTo define XML reverse engineering options 175To reverse engineer an XML file 176To reverse engineer object language files into a new OOM Reverse engineering into a new OOM177 This product includes XML4C 3.0.1 software developed by 178About this chapter This chapter describes how to generate objects from an OOM179 Selecting objects to include in the generation Generating objects180 Select tools Graphically selected objectsSelecting objects Selection tipsCheck model Generating Java source filesDefining Java generation options Visibility sortTo define Java generation options 183To generate .java files Generating Java class definition files184 Select Tools Select the classes that you want to generate from the list185 Navigating between pages Creating Java BeanInfo classes186 To create Java BeanInfo classes 187188 Pbl application Generating objects for PowerBuilderDefining PowerBuilder generation options Sru filesTo define PowerBuilder generation options 190Click Apply Click Cancel Generating objects for a PowerBuilder application191 192 To generate PowerBuilder user objects in sru files Generating PowerBuilder objects in sru files193 194 To define XML generation options Generating for XMLDefining XML generation options 195Generating XML objects 196To generate XML files 197198 Customizing scripts 199200 201 202 Generating OOM objects to a CDMTranslating OOM objects into CDM objects OOM object203 Translating OOM data types for a CDMTranslating Java data types for a CDM Java data typeGenerating and updating a CDM Generating a CDM from an OOM204 Clearing the Preserve Modifications checkbox Update existingCDM generation options You can set the following general generation optionsObjects selected in the model Object selection parametersCheck model before generation 206To generate to a new CDM from an OOM Generating a new CDM207 208 Generating a CDM from a package 209210 To update an existing CDM by generating from an OOMUpdating an existing CDM Preserve ModificationsPreserve modifications 211212 Merging models 213214 215 Generating from Generating OOM objects to a PDMTranslating OOM objects into PDM objects Associations217 Translating OOM data types for a PDMTranslating Java data types for a PDM Translation example for SQL AnywhereGenerate new Physical Data Generating a PDM from an OOMGenerating and updating a PDM 218Physical Data 219You select objects for PDM generation from the Selection Defining PDM generation options220 Select Tools Generate Physical Data Model Generating a new PDMTo generate to a new PDM from an OOM 221222 Generating a PDM from a package 223Updating an existing PDM To update an existing PDM by generating from an OOM224 225 226 227 228 Using Object Languages 229230 Object languagesTypes of object language Object language typeTo modify a value of a current object language Accessing object language propertiesModifying the current object language Open an OOM Select Language Edit Current Object Language232 To modify the parameters of a linked object language Modifying linked object language properties233 234 To change the object language of an OOM Changing the object language of an OOMCreating a new object language To create a new object language236 237 238 Fields Using the object language editorCategories ValuesEditor edit menu Modifying values in the object language editorObject language Following editing options appearUML category Object language editor categoriesGeneral category StereotypesClass stereotypes Class has the following default stereotypes242 Operation stereotypes An operation has the following default stereotypeGeneralization has the following default stereotype Generalization stereotypesDependency stereotypes Dependency has the following default stereotypes244 Package stereotypes Package has the following default stereotypesScript category 245Object scripts Default constantsFollowing constant values are defined by default 246247 SpecificationExample You can modify the following basic data types Default data typesXML Mapping 248Event Extended Attributes categoryNamings 249250 Using Business Rules 251What is a business rule? 252253 Defining business rules in an OOMTypes of business rule Rule typeBusiness rule definition includes the following properties Business rule propertiesCreating a business rule 254To create a business rule 255To apply a business rule to an object Applying business rules to objectsApplying a business rule to an object 256Attaching an expression to a business rule 257258 Glossary 259Glossary 260261 262 Stereotype Transient object VisibilityIndex 263264 OOM265 266 Class267 268 269 270 JDK271 Model272 273 Open274 275 Role276 277 278