OCL General Operators
General Operators
To find all available operators, you can open the OCL-Editor and type in a class:
| Operators | Description |
|---|---|
| allInstances | All the objects of the class |
| allinstancesAtTime | All the currently loaded instances |
| allLoadedObjects | All objects currently in memory, excluding deleted objects |
| allStates | Meta information about available states in state machines the class may contain |
| allSubClasses | Meta information on all the sub-classes this class has |
| allSuperTypes | Meta information on all the super-classes – in inheritance order the class has |
| ASCII | The set of symbols and characters used to specify constraints on objects in software development. |
| associationEnds | Returns a collection of strings with association names for the class |
| associationEndsWithType | Returns a collection of strings with association names and type information for the class |
| asString | The string representation of the class – the asString operation is available on everything |
| asTaJson | Returns a json string defined by the ViewModel |
| atTime | Gives the read-only representation of a versioned object as it was at time X. |
| Attributes | Meta information about what attributes the class has |
| BigEndianUnicode | A data encoding format for Unicode characters |
| brokenConstraints | Returns a collection of the names of broken constraints for the class and object. |
| canAccess | Check ViewModels Access expression for root |
| Constraints | Meta information on what constraints the class has |
| count | Returns how many times the object is in the collection self. |
| Empty | Used to check if a collection or string is empty or not |
| emptylist | Returns an empty list typed to hold objects of the class |
| existing | The existing operator returns true if the object hasn't been deleted. |
| externalId | Returns the external ID for the object operated on. |
| format | Used to create formatted strings based on a given pattern. |
| IsDirty | Returns true if the objects have been changed since the last save. |
| IsNew | IsNew operator returns true if the object has never been saved to the database. |
| isDirtyMember | Called on a class attribute to check if this attribute has changes pending to be saved. |
| isNull | Returns true if the value is null (not assigned any value). |
| maxValue | Gets the maximum value in a collection of values |
| minValue | Gets the minimum value in a collection of values |
| nullValue | A typed null value |
| objectFromExternalId | An external identity will be resolved to the object |
| oclAsType | The type of the class |
| oclGetStates | Gets a list of the objects all state machines currently state as strings. |
| oclIsInvalid | Returns true if self is equal to *invalid*. |
| oclIsKindOf | This is to if a class is a subclass or as the class itself and not unrelated |
| oclIsTypeOf | Returns true if |
| OnCreate | Is often called when a new object has been created. |
| OnUpdate | Is called just before the object is saved to the database. |
| oclIsUndefined | Returns true if self is equal to invalid or null. |
| OclType | When used on an object, you get the type of the object. |
| random | Used to generate a random value within a specified range or collection |
| safeCast | Used to safely cast an object to a subtype. |
| sqlpassthrough | Calls a stored procedure |
| sqlpassthroughobjects | Return a primary key of SomeClass. This can be combined with other Ocl-PS via ->intersection or union. |
| superTypes | Returns the set of all direct supertypes of the type. |
| TaggedValue | Meta information on tagged values set in the class |
| TaggedValueOnFeature | Meta information on Tagged values set on a named feature in the class |
| Typename | The type name as a string |
| ViewModels | A tuple with the ViewModels for this class a members |
This page was edited more than 11 months ago on 05/05/2023. What links here
Pages in category "OCL General Operators"
The following 50 pages are in this category, out of 50 total.
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- Documentation:OclIsInvalid
- Documentation:OclIsUndefined
- Documentation:OCLOperators allInstances
- Documentation:OCLOperators allInstancesAtTime
- Documentation:OCLOperators allLoadedObjects
- Documentation:OCLOperators allStates
- Documentation:OCLOperators allSubClasses
- Documentation:OCLOperators allSuperTypes
- Documentation:OCLOperators ASCII
- Documentation:OCLOperators associationEnds
- Documentation:OCLOperators associationEndsWithType
- Documentation:OCLOperators asString
- Documentation:OCLOperators AsTaJson
- Documentation:OCLOperators atTime
- Documentation:OCLOperators attributes
- Documentation:OCLOperators BigEndianUnicode
- Documentation:OCLOperators brokenConstraints
- Documentation:OCLOperators canAccess
- Documentation:OCLOperators constraints
- Documentation:OCLOperators count
- Documentation:OCLOperators Default
- Documentation:OCLOperators Empty
- Documentation:OCLOperators emptyList
- Documentation:OCLOperators existing
- Documentation:OCLOperators externalId
- Documentation:OCLOperators format
- Documentation:OCLOperators IsDirty
- Documentation:OCLOperators IsDirtyMember
- Documentation:OCLOperators IsNew
- Documentation:OCLOperators isNull
- Documentation:OCLOperators maxValue
- Documentation:OCLOperators minValue
- Documentation:OCLOperators nullValue
- Documentation:OCLOperators objectfromExternalId
- Documentation:OCLOperators oclAsType
- Documentation:OCLOperators oclGetStates
- Documentation:OCLOperators oclIsKindOf
- Documentation:OCLOperators oclIsTypeOf
- Documentation:OCLOperators OclType
- Documentation:OCLOperators OnCreate
- Documentation:OCLOperators OnUpdate
- Documentation:OCLOperators random
- Documentation:OCLOperators safeCast
- Documentation:OCLOperators Sqlpassthrough
- Documentation:OCLOperators sqlpassthroughobjects
- Documentation:OCLOperators superTypes
- Documentation:OCLOperators taggedValue
- Documentation:OCLOperators taggedValueOnFeature
- Documentation:OCLOperators typename
- Documentation:OCLOperators ViewModels