Chapter 7 Working with Eclipse
| Tag Name | Description | Use |
|---|---|---|
| Name | Package name | Package code |
| NsURI | Namespace URI of the package, i.e. the URI that is displayed in the xmlns tag to identify this package in an XMI document | Extended Attribute NamespaceURI. The default value is %Code%.xmi |
| NsPrefix | Namespace prefix that is used when references to instances of the classes in this package are serialized | Extended Attribute NamespacePrefix.
The default value is %Code% |
| Prefix | Used as the prefix for the names of the generated Factory and Package classes | Not supported.
The default value will be the package code |
| BasePackage | Prefix used for the Java package that contains the generated code for the model | Not supported.
The base package will be generated in the .genmodel file |
A class will generate an EClass.
| Tag Name | Description | Use |
|---|---|---|
| Name | Used to construct the names of the generated interface and implementation class | Class code |
| instanceClass | Used by the EMF runtime to validate the type of objects | Not supported |
| defaultValue | Intrinsic default value for a class. This default will be applied to any attributes of the class | Not supported |
| Abstract | If set to True, the generated implementation class will have the abstract keyword | Class abstract attribute |
| interface | If set to True, only the java interface will be generated. There will be no corresponding implementation class and no create method in the factory | Interface |
| eSupertypes | Super type for this class | Parent class of a Generalization |
A class attribute will generate an EAttribute.
| Tag Name | Description | Use |
|---|---|---|
| Name | Name used to construct the names of accessor methods | Attribute code |
| EType | Attribute type | Attribute data type |
| changeable | Indicates whether the attribute may be modified | Attribute Changeability property. Set Changeability to Read Only implies that changeable is set to False |
| volatile | Indicates whether the attribute cannot be cached. If volatile is set to True, the generated class does not contain a field to hold the attribute and the generated get() and set() methods for the attribute are empty | Attribute Volatile property |
| transient | Indicates whether the attribute should not be stored | Attribute persistent property. Transient is the inverse value of persistent |
| unique | Indicates whether a many-valued attribute is allowed to have duplicates | Extended attribute Unique |
| defaultValueLiteral | Determines the value returned by the get method if the attribute has never been set | Attribute initial value |
| lowerBound | Determines the setting of the required property. If lowerBound is 0, the required property will be set to False. Otherwise, the required property will be set to True | Attribute multiplicity |
| upperBound | Determines the setting of the many property. If upperBound is 1, the many property will be set to False. Otherwise, the many property will be set to True | Attribute multiplicity |
| many | If many is set to True, there is no set() method for the attribute and the get() method returns a list that can only contains objects of the appropriate type | Not generated. It will be computed from upperBound |
| required | Indicates whether the attribute is required | Not generated. It will be computed from LowerBound. |
| unsettable | Indicates that the attribute may be unset | Extended attribute Unsettable |
An association will generate an EReference.
| Tag Name | Description | Use |
|---|---|---|
| Name | Name used to construct the names of accessor methods | Opposite role name or association code |
| eType | Reference type | Opposite class code |
| changeable | Indicates whether the reference may be modified. If changeable is set to False, no set() method is generated for the reference | RoleA or RoleB changeability |
| volatile | Indicates whether the reference cannot be cached. If volatile is set to True, the generated class does not contain a field to hold the reference and the generated get() and set() methods for the reference are empty | RoleA or RoleB volatile |
| transient | Indicates whether the reference should not be stored | Extended attribute RoleATransient or RoleBTransient. |
| unique | Indicates whether a many-valued attribute is allowed to have duplicates | Extended attribute RoleAUnique or RoleBUnique |
| defaultValue | Determines the value returned by the get method if the attribute has never been set | Extended attribute RoleADefaultValue or RoleBDefaultValue |
| lowerBound | Determines the setting of the required property | Role A or Role B multiplicity |
| upperBound | Determines the setting of the many property | Role A or Role B multiplicity |
| containment | Indicates whether the reference is a containment | Role A or Role B composition |
| container | Indicates whether the reference is a container. This is the opposite of a containment EReference. If container is true, the generated accessor methods will have container semantics | Role A or Role B composition |
| resolveProxies | Indicates whether proxy references should be resolved automatically | Extended attribute RoleAResolveProxies or RoleBResolveProxies. The default value is true |
| eOpposite | Identifies the EReference that represents the opposite end of the relationship | Computed |
A class with the stereotype <<enumeration>> will generate an EEnum.
| Tag Name | Description | Use |
|---|---|---|
| Name | Used to construct the names of the generated interface and implementation class | Class code |
An attribute defined in a class with the stereotype <<enumeration>> will generate an EEnumLiteral.
| Tag Name | Description | Use |
|---|---|---|
| Name | Name used to generate the final static constants in the enumeration class that are used to access the literal. | Attribute code |
| value | Determines the integer value that is associated with this literal | Attribute initial value. The default value is 0 |
An operation will generate an EOperation.
| Tag Name | Description | Use |
|---|---|---|
| Name | Name of the generated method | Operation code |
| eType | Method return type | Operation return type |
An operation parameter will generate an EParameter.
| Tag Name | Description | Use |
|---|---|---|
| Name | Name of the generated argument | Parameter code |
| EType | Argument type | Parameter type |
A Java data type used by an attribute, an operation or a parameter that is not part of the Ecore data types will automatically generate an EDataType.
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