OCL General Operators
    No edit summary
    No edit summary
     
    (2 intermediate revisions by the same user not shown)
    Line 1: Line 1:
    == General Operators ==
    To find all available operators, you can open the OCL-Editor and type in a class:
    To find all available operators, you can open the OCL-Editor and type in a class:


    [[File:Ocl-editor 1.png|frameless|433x433px|link=https://wiki.mdriven.net/index.php/File:Ocl-editor_1.png]]
    [[File:Ocl-editor 1.png|frameless|433x433px|link=https://wiki.mdriven.net/index.php/File:Ocl-editor_1.png]]
    {| class="wikitable"
    !Operators
    !Description
    |-
    |'''[[Documentation:OCLOperators allInstances|allInstances]]'''
    |All the objects of the class
    |-
    |'''[[Documentation:OCLOperators allInstancesAtTime|allinstancesAtTime]]'''
    |All the currently loaded instances
    |-
    |'''[[Documentation:OCLOperators allLoadedObjects|allLoadedObjects]]'''
    |All objects currently in memory, excluding deleted objects
    |-
    |'''[[Documentation:OCLOperators allStates|allStates]]'''
    |Meta information about available states in state machines the class may contain
    |-
    |'''[[Documentation:OCLOperators allSubClasses|allSubClasses]]'''
    |Meta information on all the sub-classes this class has
    |-
    |'''[[Documentation:OCLOperators allSuperTypes|allSuperTypes]]'''
    |Meta information on all the super-classes – in inheritance order the class has
    |-
    |'''[[Documentation:OCLOperators ASCII|ASCII]]'''
    |The set of symbols and characters used to specify constraints on objects in software development.
    |-
    |'''[[Documentation:OCLOperators associationEnds|associationEnds]]'''
    |Returns a collection of strings with association names for the class
    |-
    |'''[[Documentation:OCLOperators associationEndsWithType|associationEndsWithType]]'''
    |Returns a collection of strings with association names and type information for the class
    |-
    |'''[[Documentation:OCLOperators asString|asString]]'''
    |The string representation of the class – the asString operation is available on everything
    |-
    |'''[[Documentation:OCLOperators AsTaJson|asTaJson]]'''
    |Returns a json string defined by the ViewModel
    |-
    |'''[[Documentation:OCLOperators atTime|atTime]]'''
    |Gives the read-only representation of a versioned object as it was at time X.
    |-
    |'''[[Documentation:OCLOperators attributes|Attributes]]'''
    |Meta information about what attributes the class has
    |-
    |'''[[Documentation:OCLOperators BigEndianUnicode|BigEndianUnicode]]'''
    |A data encoding format for Unicode characters
    |-
    |'''[[Documentation:OCLOperators brokenConstraints|brokenConstraints]]'''
    |Returns a collection of the names of broken constraints for the class and object.
    |-
    |'''[[Documentation:OCLOperators canAccess|canAccess]]'''
    |Check ViewModels Access expression for root
    |-
    |'''[[Documentation:OCLOperators constraints|Constraints]]'''
    |Meta information on what constraints the class has
    |-
    |'''[[Documentation:OCLOperators count|count]]'''
    |Returns how many times the ''object'' is in the collection ''self''.
    |-
    |'''[[Documentation:OCLOperators Empty|Empty]]'''
    |Used to check if a collection or string is empty or not
    |-
    |'''[[Documentation:OCLOperators emptyList|emptylist]]'''
    |Returns an empty list typed to hold objects of the class
    |-
    |'''[[Documentation:OCLOperators existing|existing]]'''
    |The existing operator returns true if the object hasn't been deleted.
    |-
    |'''[[Documentation:OCLOperators externalId|externalId]]'''
    |Returns the external ID for the object operated on.
    |-
    |'''[[Documentation:OCLOperators format|format]]'''
    |Used to create formatted strings based on a given pattern.
    |-
    |'''[[Documentation:OCLOperators IsDirty|IsDirty]]'''
    |Returns true if the objects have been changed since the last save.
    |-
    |'''[[Documentation:OCLOperators IsNew|IsNew]]'''
    |IsNew operator returns true if the object has never been saved to the database.
    |-
    |'''[[Documentation:OCLOperators IsDirtyMember|isDirtyMember]]'''
    |Called on a class attribute to check if this attribute has changes pending to be saved.
    |-
    |'''[[Documentation:OCLOperators isNull|isNull]]'''
    |Returns true if the value is null (not assigned any value).
    |-
    |'''[[Documentation:OCLOperators maxValue|maxValue]]'''
    |Gets the maximum value in a collection of values
    |-
    |'''[[Documentation:OCLOperators minValue|minValue]]'''
    |Gets the minimum value in a collection of values
    |-
    |'''[[Documentation:OCLOperators nullValue|nullValue]]'''
    |A typed null value
    |-
    |'''[[Documentation:OCLOperators objectfromExternalId|objectFromExternalId]]'''
    |An external identity will be resolved to the object
    |-
    |'''[[Documentation:OCLOperators oclAsType|oclAsType]]'''
    |The type of the class
    |-
    |'''[[Documentation:OCLOperators oclGetStates|oclGetStates]]'''
    |Gets a list of the objects all state machines currently state as strings.
    |-
    |'''[[Documentation:OclIsInvalid|oclIsInvalid]]'''
    |Returns true if ''self'' is equal to *invalid*.
    |-
    |'''[[Documentation:OCLOperators oclIsKindOf|oclIsKindOf]]'''
    |This is to if a class is a subclass or as the class itself and not unrelated
    |-
    |'''[[Documentation:OCLOperators oclIsTypeOf|oclIsTypeOf]]'''
    |Returns true if
    |-
    |'''[[Documentation:OCLOperators OnCreate|OnCreate]]'''
    |Is often called when a new object has been created.
    |-
    |'''[[Documentation:OCLOperators OnUpdate|OnUpdate]]'''
    |Is called just before the object is saved to the database.
    |-
    |'''[[Documentation:OclIsUndefined|oclIsUndefined]]'''
    |Returns true if ''self'' is equal to invalid or null.
    |-
    |'''[[Documentation:OCLOperators OclType|OclType]]'''
    |When used on an object, you get the type of the object.
    |-
    |'''[[Documentation:OCLOperators random|random]]'''
    |Used to generate a random value within a specified range or collection
    |-
    |'''[[Documentation:OCLOperators safeCast|safeCast]]'''
    |Used to safely cast an object to a subtype.
    |-
    |'''[[Documentation:OCLOperators sqlpassthrough|sqlpassthrough]]'''
    |Calls a stored procedure
    |-
    |'''[[Documentation:OCLOperators sqlpassthroughobjects|sqlpassthroughobjects]]'''
    |Return a primary key of SomeClass. This can be combined with other Ocl-PS via ->intersection or union.
    |-
    |'''[[Documentation:OCLOperators superTypes|superTypes]]'''
    |Returns the set of all direct supertypes of the type.
    |-
    |'''[[Documentation:OCLOperators taggedValue|TaggedValue]]'''
    |Meta information on tagged values set in the class
    |-
    |'''[[Documentation:OCLOperators taggedValueOnFeature|TaggedValueOnFeature]]'''
    |Meta information on Tagged values set on a named feature in the class
    |-
    |'''[[Documentation:OCLOperators typename|Typename]]'''
    |The type name as a string
    |-
    |'''[[Documentation:OCLOperators ViewModels|ViewModels]]'''
    |A tuple with the ViewModels for this class a members
    |}


    '''See also:''' [[Training:OCLOperators|OCLOperators]]
    '''See also:''' [[Documentation:OCLOperators|OCLOperators]]

    Latest revision as of 05:27, 18 March 2025

    This page was created by Stephanie@mdriven.net on 2023-04-14. Last edited by Stephanie@mdriven.net on 2025-03-18.

    To find all available operators, you can open the OCL-Editor and type in a class:

    Ocl-editor 1.png

    See also: OCLOperators

    Pages in category "OCL General Operators"

    The following 49 pages are in this category, out of 49 total.

    O

    Retrieved from "https://wiki.mdriven.net/index.php?title=Category:OCL_General_Operators&oldid=26851"

    © MDRIVEN . All Rights Reserved

    API Docs
    MDriven World | Portal | Blog | YouTube | StackOverflow | Facebook

    © MDRIVEN . All Rights Reserved

    MDriven Chat

    How would you like to chat today?

    Setting up your conversation…

    This may take a few moments