ModelElement (from Core) (from Core)
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The TypeMapping package depends on the following package: org.omg::CWM::ObjectModel::Core
The TypeMapping package supports the mapping of data types between different systems. The purpose of these mappings is to
indicate data types in different systems that are sufficiently compatible that data values can be interchanged between them.
Multiple mappings are allowed between any pair of types and a means of identifying the preferred mapping is provided.
Package
ModelElement (from Core) (from Core)
TypeM app ing
TypeSystem /namespace /ownedElement
/namespace
mappingFrom
mappingTo
sourceTy pe targetTy pe
Cl assi fi er /ownedElement
(fromCore)
Figure 5-14 TypeMapping metamodel
Figure 5-15
provides a simple example of the use of the TypeMapping package to map the CORBA IDL v2.2 long data type and the Java 2 int
data type to each other.
CORBAIDLv2.2 : Java2 : TypeSystem TypeSystem
ElementOwnership
int : DataType
ElementOwnership
ElementOwnership
MappingTarget MappingSource
: : TypeMappingTypeMapping
isBestMatch = true :
isBestMatch = true : Boolean
Boolean
MappingSource
MappingTarget isLossy = false :
isLossy = false : Boolean
Boolean
ElementOwnership
long : DataType
Figure 5-15 Mapping the CORBA IDL long and Java int data types