Class RelationBase

Base class for relations (with storage) and virtual relations (with conditions).

Inheritance

System.Object

DynamicObject

NamedDynamicObject

ModelElement

RelationBase

LogicalRelation

Relation

Implements

System.Dynamic.IDynamicMetaObjectProvider

System.ComponentModel.INotifyPropertyChanged

System.ComponentModel.IDataErrorInfo

INullable

Inherited Members

ModelElement.IsValidIdentifier(String)

ModelElement.OnDeserializing(StreamingContext)

ModelElement.Accept(ModelElementVisitor)

ModelElement.Detach()

ModelElement.Validate(IList<PropertyValidationMessage>, Boolean)

ModelElement.SetOwnershipPrefix(String)

ModelElement.UpdateChildren(NotifyCollectionChangedEventArgs)

ModelElement.SetPersistBehavior(PersistBehavior)

ModelElement.SetName(String)

ModelElement.SetOwnership(Ownership)

ModelElement.ElementGuid

ModelElement.Name

ModelElement.Parent

ModelElement.Children

ModelElement.PersistBehavior

ModelElement.IsFullPersistBehavior

ModelElement.IsNonePersistBehavior

ModelElement.IsSystemElement

ModelElement.IsApplicationSpecificElement

ModelElement.IsUserElement

ModelElement.IsSystemOrApplicationSpecificElement

ModelElement.InvariantFriendlyName

ModelElement.CreationVersion

ModelElement.LastUpdateVersion

ModelElement.Error

ModelElement.ErrorSummary

ModelElement.IsValid

ModelElement.Ownership

ModelElement.OwnershipPrefix

ModelElement.NonPrefixedName

NamedDynamicObject.OnPropertyChanged(String)

NamedDynamicObject.PropertyChanged

DynamicObject.GetMember(String)

DynamicObject.SetMember(String, Object)

DynamicObject.GetMetaObject(Expression)

System.Object.ToString()

System.Object.Equals(System.Object)

System.Object.Equals(System.Object, System.Object)

System.Object.ReferenceEquals(System.Object, System.Object)

System.Object.GetHashCode()

System.Object.GetType()

System.Object.MemberwiseClone()

Namespace: TimeCockpit.Data.DataModel

Assembly: TimeCockpit.Data.dll

Syntax

public abstract class RelationBase : ModelElement, IDynamicMetaObjectProvider, INotifyPropertyChanged, IDataErrorInfo, INullable

Constructors

RelationBase()

Initializes a new instance of the RelationBase class.

Declaration

public RelationBase()

RelationBase(IEnumerable<KeyValuePair<Object, Object>>)

Initializes a new instance of the RelationBase class.

Declaration

public RelationBase(IEnumerable<KeyValuePair<object, object>> properties)

Parameters

Type	Name	Description
System.Collections.Generic.IEnumerable<System.Collections.Generic.KeyValuePair<System.Object, System.Object>>	properties	Collection of properties.

Remarks

You can use this constructor to initialize a new instance of the RelationBase class by specifying its properties in a list of key/value pairs. This is especially useful for dynamic languages like python.

RelationBase(RelationBase)

Initializes a new instance of the RelationBase class.

Declaration

public RelationBase(RelationBase element)

Parameters

Type	Name	Description
RelationBase	element	The relation to copy.

Remarks

This copy constructor creates copies of all value-typed properties. StorageColumns and Permissions from element are just added to the corresponding collections of the new Relation. No copying is performed.

Properties

DataType

Gets the type of the relation.

Declaration

public Type DataType { get; }

Property Value

Type	Description
System.Type

IsNullable

Gets or sets a value indicating whether either Relation or ModelProperty can be null or not.

Declaration

public abstract bool IsNullable { get; set; }

Property Value

Type	Description
System.Boolean	true if a Relation or ModelProperty can be null; otherwise, false.

Implements

INullable.IsNullable

Permissions

Gets the deny read write permissions of the ModelProperty.

Declaration

public ModelCollection<Permission> Permissions { get; }

Property Value

Type	Description
ModelCollection<Permission>

Target

Gets or sets the target of the relation.

Declaration

public abstract ModelEntityBase Target { get; set; }

Property Value

Type	Description
ModelEntityBase

Methods

Attach(ModelElement)

Attaches a model element to a parent model element.

Declaration

protected override void Attach(ModelElement newParent)

Parameters

Type	Name	Description
ModelElement	newParent	Parent model element.

Overrides

ModelElement.Attach(ModelElement)

Remarks

Note to implementers: If your model element has sub-elements, your implementation of Attach should call the base class' implementation and afterwards attach all sub-elements.

Exceptions

Type	Condition
System.ArgumentNullException	newParent is null.
System.ArgumentException	Thrown in case of a recursion in the model element tree.

InitializeObject()

Initializes the RelationBase object setting fields of the object to their default values.

Declaration

protected virtual void InitializeObject()

RemovePermissions()

Empty the Permissions and EnabledPermissions.

Declaration

protected void RemovePermissions()

ShallowCopy()

Performs a shallow copy of the current RelationBase/the derived class.

Declaration

public abstract RelationBase ShallowCopy()

Returns

Type	Description
RelationBase	A shallow copy of the current RelationBase.

ShallowCopy(String, PersistBehavior, Ownership, Boolean, Boolean)

Performs a shallow copy of the current RelationBase/the derived class.

Declaration

public abstract RelationBase ShallowCopy(string name, PersistBehavior persistBehavior, Ownership ownership, bool ignorePermissions = false, bool ignoreDefaultValues = false)

Parameters

Type	Name	Description
System.String	name	Overridden model element name.
PersistBehavior	persistBehavior	Overridden persist behavior.
Ownership	ownership	Overridden ownership.
System.Boolean	ignorePermissions	if set to true [ignore permissions].
System.Boolean	ignoreDefaultValues	if set to true [ignore default values].

Returns

Type	Description
RelationBase	A shallow copy of the current RelationBase.