Class NotifyReversableValue<T>

base implementation of a reversable notify value

Inheritance
object
NotifyReversableValue<T>
Implements
Inherited Members
Namespace: NMF.Expressions
Assembly: NMF.Expressions.dll
Syntax
public class NotifyReversableValue<T> : INotifyReversableValue<T>, INotifyValue<T>, INotifiable, IDisposable, INotifyPropertyChanged, ISuccessorList
Type Parameters
Name Description
T

The element type

Constructors

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NotifyReversableValue(Expression<Func<T>>, IDictionary<string, object>)

Create a new instance

Declaration
public NotifyReversableValue(Expression<Func<T>> expression, IDictionary<string, object> parameterMappings = null)
Parameters
Type Name Description
Expression<Func<T>> expression

The underlying expression
IDictionary<string, object> parameterMappings

Parameter mappings

Properties

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AllSuccessors

Declaration
public IEnumerable<INotifiable> AllSuccessors { get; }
Property Value
Type Description
IEnumerable<INotifiable>
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Count

The number of elements

Declaration
public int Count { get; }
Property Value
Type Description
int
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Dependencies

Nodes that notify this node.

Declaration
public IEnumerable<INotifiable> Dependencies { get; }
Property Value
Type Description
IEnumerable<INotifiable>
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ExecutionMetaData

Used by the execution engine during incremental execution.

Declaration
public ExecutionMetaData ExecutionMetaData { get; }
Property Value
Type Description
ExecutionMetaData
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HasSuccessors

True, if there is any successor, otherwise False

Declaration
public bool HasSuccessors { get; }
Property Value
Type Description
bool
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IsAttached

True, if successors are attached, otherwise False

Declaration
public bool IsAttached { get; }
Property Value
Type Description
bool
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IsReversable

Checks whether it is allowed to set values

Declaration
public bool IsReversable { get; }
Property Value
Type Description
bool
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Successors

The nodes that will get notified by this node.

Declaration
public ISuccessorList Successors { get; }
Property Value
Type Description
ISuccessorList
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Value

Gets or sets the current value

Declaration
public T Value { get; set; }
Property Value
Type Description
T

Methods

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Dispose()

Declaration
public void Dispose()
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GetSuccessor(int)

Gets the successor at the given index

Declaration
public INotifiable GetSuccessor(int index)
Parameters
Type Name Description
int index

The index
Returns
Type Description
INotifiable

The DDG node with the given index
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Notify(IList<INotificationResult>)

Gets called when one of the dependencies signals a notification.

Declaration
public virtual INotificationResult Notify(IList<INotificationResult> sources)
Parameters
Type Name Description
IList<INotificationResult> sources

Contains information about what triggered this notification.
Returns
Type Description
INotificationResult

An object describing the changes that happened in this notification.
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OnAttach()

Occurs when this node gets (re)attached to another node for the first time

Declaration
protected virtual void OnAttach()
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OnDetach()

Occurs when the last successor of this node gets removed

Declaration
protected virtual void OnDetach()
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OnPropertyChanged(string)

Raises PropertyChanged

Declaration
protected virtual void OnPropertyChanged(string propertyName)
Parameters
Type Name Description
string propertyName

the name of the property
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OnValueChanged(T, T)

Gets called when the value changed

Declaration
protected virtual void OnValueChanged(T oldValue, T newValue)
Parameters
Type Name Description
T oldValue

old value
T newValue

new value
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Set(INotifiable)

Add the given DDG node to the list

Declaration
public void Set(INotifiable node)
Parameters
Type Name Description
INotifiable node

The DDG node to add
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SetDummy()

Sets a dummy

Declaration
public void SetDummy()
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Unset(INotifiable, bool)

Unset the given DDG node as successor

Declaration
public void Unset(INotifiable node, bool leaveDummy = false)
Parameters
Type Name Description
INotifiable node

the DDG node
bool leaveDummy

True, to leave the dummy in operation, otherwise False
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UnsetAll()

Clear the list

Declaration
public void UnsetAll()

Events

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PropertyChanged

Declaration
public event PropertyChangedEventHandler PropertyChanged
Event Type
Type Description
PropertyChangedEventHandler
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ValueChanged

Gets fired when the value changed

Declaration
public event EventHandler<ValueChangedEventArgs> ValueChanged
Event Type
Type Description
EventHandler<ValueChangedEventArgs>

Implements

Extension Methods