Changes for page Transformation Mapping (KTM)
Last modified by Richard Kreissig on 2023/09/14 11:14
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edited by Alexander Schulz-Rosengarten
on 2013/12/16 11:19
on 2013/12/16 11:19
edited by Alexander Schulz-Rosengarten
on 2013/12/18 16:12
on 2013/12/18 16:12
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... ... @@ -1,3 +1,113 @@ 1 1 = KTM - KIELER Transformation Mapping = 2 2 3 -content coming soon 3 + 4 + 5 + 6 + 7 +{{toc maxLevel="2" minLevel="2"/}} 8 + 9 +---- 10 + 11 +== Overview == 12 + 13 + 14 + 15 +This subproject provides a tracing mechanism for arbitary model-elements across multiple model transformations, based on EMF. 16 + 17 +The main propose of KTM is to allow information transfer between abstract models and their resultant transformed models. 18 + 19 +---- 20 + 21 +== Transformation Tree Model == 22 + 23 + 24 + 25 +To offer a mapping between model-elements during multiple transformations KTM introduces a model called TransformationTree to represent these relations. 26 + 27 +It is based on an EMF-Metamodel. 28 + 29 + 30 + 31 +<metamodel> 32 + 33 + 34 + 35 +The structure of the model can be separated into two parts. 36 + 37 +First part is a tree of transformations. 38 + 39 +Each Model-Class is a representation of a concrete model which is transformed. So models are nodes and ModelTransformations are edges. 40 + 41 +Thus the Model representing the root-model of a tree is also the root of a concrete TransformationTree-Model. 42 + 43 +Second part is object mapping. 44 + 45 +Concrete models contain EObjects as their elements, which are representend by Element-Class in TransformationTree metamodel. 46 + 47 +The Elements of two models are connected with ElementTransformations-Class to model their 48 + 49 +origination relationship in corresponding model transformation. 50 + 51 + 52 + 53 +An abstract example of an instance of this model: 54 + 55 + 56 + 57 +<exmaple_tree> 58 + 59 +---- 60 + 61 +== Extensions == 62 + 63 + 64 + 65 +Two classes are provided by this project to extend functionality of the core model. 66 + 67 + 68 + 69 +TransformationMapping (JavaDoc) 70 + 71 + 72 + 73 +The main propose of this class is generation of a Object mapping during transformation process. 74 + 75 +Therefor it provides different functions for incremental registering of single parent child relations beween EObjects. 76 + 77 +Furthermore, the extension allows to extract the mapping and check completeness of mapped elements against content of transformed models. 78 + 79 + 80 + 81 +TransformationTreeExtensions (JavaDoc) 82 + 83 + 84 + 85 +This class proived all functionalities to easily traverse and search in a TransformationTree. 86 + 87 +Furthermore, it allows to modify trees by creating, deleting or appending new transformations and transformed models. 88 + 89 + 90 + 91 +---- 92 + 93 + 94 + 95 +== Implementation Details == 96 + 97 + 98 + 99 +All references to EObjects are references to a copy of the original EObject. This allows to represent immutable mapping. To reidentify corresponding EObjects TransformationTreeExtensions provides search funtions and matching functionality. 100 + 101 + 102 + 103 +Models in TransformationTrees may be transient. 104 + 105 +This indicates that all references to EObjects in all Elements of the transient model are removed. 106 + 107 +Thus these models can't be source of a new appended tranformation and can not be associated with it's orginal model. 108 + 109 +The main propose of this feature is to improve scalability of TransformationTrees by removing unneccessary references to internal model, but preserve traversing funtionality of the ObjectMapping. 110 + 111 +== Example == 112 + 113 +coming soon
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... ... @@ -1,1 +1,1 @@ 1 -865147 31 +8651475 - URL
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... ... @@ -1,1 +1,1 @@ 1 -https://rtsys.informatik.uni-kiel.de/confluence//wiki/spaces/KIELER/pages/865147 3/Transformation Mapping (KTM)1 +https://rtsys.informatik.uni-kiel.de/confluence//wiki/spaces/KIELER/pages/8651475/Transformation Mapping (KTM)