Property

This is the base class for Properties

**Property**
Name	Type	Attributes	Description
This type does not define any additional attributes.

The Property current version is 1.0.0.

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PropagationConstraint

This class provides propagation constraint for Relation

**PropagationConstraint** `extends` **Property**
Name	Type	Attributes	Description
remove	String	`Mandatory:true` `ReadOnly:false` `NotNull:true` `Regex:^(cascadeWhenOrphan\|cascade\|keep)$`	It indicates the behaviour to implement for the target Entity when a 'remove' action is performed on the source Resource. Remove actions are: (i) the operation of removing an instance from a context; (ii) the operation of deleting an instance (it has an impact on all contexts).
add	String	`Mandatory:true` `ReadOnly:false` `NotNull:true` `Regex:^(propagate\|unpropagate)$`	It indicates the behaviour to implement for the target Entity when an 'add' action is performed on the source Resource. Add action is the operation of adding an instance to a context.

The PropagationConstraint current version is 1.0.0.

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This is the base class for Encrypted values

**Encrypted** `extends` **Property**
Name	Type	Attributes	Description
value	String	`Mandatory:true` `ReadOnly:false` `NotNull:true`

The Encrypted current version is 1.0.0.

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This class provides metadata per every IdentifiableElement

**Header** `extends` **Property**
Name	Type	Attributes	Description
creationTime	Date	`Mandatory:true` `ReadOnly:true` `NotNull:true`	Creation time. It represents the difference, measured in milliseconds, between the creation time and midnight, January 1, 1970, UTC.
lastUpdateTime	Date	`Mandatory:true` `ReadOnly:false` `NotNull:true`	Last Update time. At creation time it assumes the same value of creationTime. It represents the difference, measured in milliseconds, between the creation time and midnight, January 1, 1970, UTC.
createdBy	String	`Mandatory:true` `ReadOnly:true` `NotNull:true`	The user that created the Entity or the Relation. It is initialized at creation time.
uuid	String	`Mandatory:true` `ReadOnly:true` `NotNull:true` `Regex:^([a-fA-F0-9]{8}-[a-fA-F0-9]{4}-[a-fA-F0-9]{4}-[a-fA-F0-9]{4}-[a-fA-F0-9]{12}){1}$`	This UUID is be used to identify the Entity or the Relation univocally.
lastUpdateBy	String	`Mandatory:true` `ReadOnly:false` `NotNull:true`	The user that made the last update to the Entity or the Relation. At creation time, it assumes the same value of creator.

The Header current version is 1.0.0.

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