Creating Characteristics
You can also create a MetaAttribute by means of an MGE command file, using the following syntax:
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Syntax
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.Create .MetaAttribute "Characteristic" ."MetaAttribute Type" "X" ."MetaAttribute Length" "5"
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Example 1
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.Create .MetaAttribute "Message-Type" ."MetaAttribute Type" "X" ."MetaAttribute Length" "1"
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Example 2
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.Create .MetaAttribute "Value" ."MetaAttribute Type" "A"
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Example 3
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.Create .MetaAttribute "ShortName" ."MetaAttribute Type" "X " ."MetaAttribute Length" "8" ."_AtIndex" "U"
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Characteristic values may be declared unique for a given object type. To do this, specify the value “U” for _AtIndex in the characteristic definition.
The characteristic uniqueness is only effective in repositories created after uniqueness has been declared.Creating a text type characteristic
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Syntax
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.Create .MetaAttribute "Characteristic Name" ."MetaAttribute Type" "A"
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Example
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.Create .MetaAttribute "Ext Objective" .MetaAttribute Type "A"
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Creating a tabulated MetaAttribute
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Syntax
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.Create .MetaAttribute "Characteristic Name" ."MetaAttribute Type" "Format" -
."Update Version" "16643" -
.MetaAttribute Length "Length" ."MetaAttribute Format" "T"
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Example
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Create .MetaAttribute "Ext Role" ."MetaAttribute Type" "X" - "Update Version" "16643" -
."MetaAttribute Length" "20" ."MetaAttribute Format" "T"
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Creating a unique index MetaAttribute
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Syntax
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.Create .MetaAttribute "Characteristic Name" ."MetaAttribute Type" "Format" -
.MetaAttribute Length "Length" ._AtIndex "U"
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Example
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.Create .MetaAttribute "Ext Code" ."MetaAttribute Type" "X" ."MetaAttribute Length" "5" ."_AtIndex" "U"
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Connecting a MetaAttribute to a MetaClass
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Syntax
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.Create MetaClass "Object Type"
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Example 1
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.Connect .MetaClass "Procedure" ."MetaAttribute" "Procedure-Type"
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Example 2
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.Connect .MetaClass "Procedure" ."MetaAttribute" "Object"
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Example 2 illustrates attachment of a text to an object type.
The "Comment" text is linked to all object types when they are created. This command is used to connect additional text to a segment.Connecting a MetaAttribute to a MetaAssociationEnd
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Syntax
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.Connect .MetaAssociation "Link" ."MetaAttribute" "Characteristic"
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Example
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.Connect .MetaAssociation "Operation-Sending" ."MetaAttribute" "Predicate"
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Creating an abbreviation
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Syntax
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.Abbreviate .MetaClass "Long Name" "Short Name"
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Example
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.Abbreviate .MetaAttribute "Creation Date" "Creation"
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