Class DataDependency

This DataDependency class will monitor any changes occurred to an underlying data source while notifying subscribing objects.

Inheritance

System.Object

Dependency

DataDependency

Implements

IDependency

Inherited Members

Dependency.DependencyChanged

Dependency.UtcLastModified

Dependency.Create<TResult>()

Dependency.Create<T, TResult>(T)

Dependency.Create<T1, T2, TResult>(T1, T2)

Dependency.Create<T1, T2, T3, TResult>(T1, T2, T3)

Dependency.Create<T1, T2, T3, T4, TResult>(T1, T2, T3, T4)

Dependency.Create<T1, T2, T3, T4, T5, TResult>(T1, T2, T3, T4, T5)

Dependency.SetUtcLastModified(DateTime)

Dependency.OnDependencyChangedRaised(DependencyEventArgs)

Namespace: Cuemon.Data

Assembly: Cuemon.Data.dll

Syntax

public sealed class DataDependency : Dependency, IDependency

Constructors

DataDependency(DataManager, IDataCommand, DbParameter[])

Initializes a new instance of the DataDependency class.

Declaration

public DataDependency(DataManager manager, IDataCommand command, params DbParameter[] parameters)

Parameters

Type	Name	Description
DataManager	manager	The DataManager to be used for the underlying data operations.
IDataCommand	command	The IDataCommand to execute and monitor for changes.
System.Data.Common.DbParameter[]	parameters	An optional sequence of System.Data.Common.DbParameter to use with the associated command.

Remarks

The signaling is default delayed 15 seconds before first invoke. Signaling occurs every 2 minutes.

DataDependency(DataManager, IDataCommand, TimeSpan, DbParameter[])

Initializes a new instance of the DataDependency class.

Declaration

public DataDependency(DataManager manager, IDataCommand command, TimeSpan period, params DbParameter[] parameters)

Parameters

Type	Name	Description
DataManager	manager	The DataManager to be used for the underlying data operations.
IDataCommand	command	The IDataCommand to execute and monitor for changes.
System.TimeSpan	period	The time interval between periodic signaling for changes to the specified command by the associated DataWatcher. Specify negative one (-1) milliseconds to disable periodic signaling.
System.Data.Common.DbParameter[]	parameters	An optional sequence of System.Data.Common.DbParameter to use with the associated command.

Remarks

The signaling is default delayed 15 seconds before first invoke.

DataDependency(DataManager, IDataCommand, TimeSpan, TimeSpan, DbParameter[])

Initializes a new instance of the DataDependency class.

Declaration

public DataDependency(DataManager manager, IDataCommand command, TimeSpan dueTime, TimeSpan period, params DbParameter[] parameters)

Parameters

Type	Name	Description
DataManager	manager	The DataManager to be used for the underlying data operations.
IDataCommand	command	The IDataCommand to execute and monitor for changes.
System.TimeSpan	dueTime	The amount of time to delay before the associated DataWatcher starts signaling. Specify negative one (-1) milliseconds to prevent the signaling from starting. Specify zero (0) to start the signaling immediately.
System.TimeSpan	period	The time interval between periodic signaling for changes to the specified command by the associated DataWatcher. Specify negative one (-1) milliseconds to disable periodic signaling.
System.Data.Common.DbParameter[]	parameters	An optional sequence of System.Data.Common.DbParameter to use with the associated command.

DataDependency(DataManager, IDataCommand, TimeSpan, TimeSpan, TimeSpan, DbParameter[])

Initializes a new instance of the DataDependency class.

Declaration

public DataDependency(DataManager manager, IDataCommand command, TimeSpan dueTime, TimeSpan period, TimeSpan dueTimeOnChanged, params DbParameter[] parameters)

Parameters

Type	Name	Description
DataManager	manager	The DataManager to be used for the underlying data operations.
IDataCommand	command	The IDataCommand to execute and monitor for changes.
System.TimeSpan	dueTime	The amount of time to delay before the associated DataWatcher starts signaling. Specify negative one (-1) milliseconds to prevent the signaling from starting. Specify zero (0) to start the signaling immediately.
System.TimeSpan	period	The time interval between periodic signaling for changes to the specified command by the associated DataWatcher. Specify negative one (-1) milliseconds to disable periodic signaling.
System.TimeSpan	dueTimeOnChanged	The amount of time to postpone a Changed event. Specify zero (0) to disable postponing.
System.Data.Common.DbParameter[]	parameters	An optional sequence of System.Data.Common.DbParameter to use with the associated command.

Properties

HasChanged

Gets a value indicating whether the Dependency object has changed.

Declaration

public override bool HasChanged { get; }

Property Value

Type	Description
System.Boolean	true if the Dependency object has changed; otherwise, false.

Overrides

Dependency.HasChanged

Methods

Start()

Starts and performs the necessary dependency tasks of this instance.

Declaration

public override void Start()

Overrides

Dependency.Start()

Implements

IDependency

Extension Methods

ConverterExtensions.ParseWith<TSource, TResult>(TSource, Func<TSource, TResult>)

ConverterExtensions.ParseWith<TSource, T, TResult>(TSource, Func<TSource, T, TResult>, T)

ConverterExtensions.ParseWith<TSource, T1, T2, TResult>(TSource, Func<TSource, T1, T2, TResult>, T1, T2)

ConverterExtensions.ParseWith<TSource, T1, T2, T3, TResult>(TSource, Func<TSource, T1, T2, T3, TResult>, T1, T2, T3)

ConverterExtensions.ParseWith<TSource, T1, T2, T3, T4, TResult>(TSource, Func<TSource, T1, T2, T3, T4, TResult>, T1, T2, T3, T4)

ConverterExtensions.ParseWith<TSource, T1, T2, T3, T4, T5, TResult>(TSource, Func<TSource, T1, T2, T3, T4, T5, TResult>, T1, T2, T3, T4, T5)

ConverterExtensions.ParseWith<TSource, T1, T2, T3, T4, T5, T6, TResult>(TSource, Func<TSource, T1, T2, T3, T4, T5, T6, TResult>, T1, T2, T3, T4, T5, T6)

ConverterExtensions.ParseWith<TSource, T1, T2, T3, T4, T5, T6, T7, TResult>(TSource, Func<TSource, T1, T2, T3, T4, T5, T6, T7, TResult>, T1, T2, T3, T4, T5, T6, T7)

ConverterExtensions.ParseWith<TSource, T1, T2, T3, T4, T5, T6, T7, T8, TResult>(TSource, Func<TSource, T1, T2, T3, T4, T5, T6, T7, T8, TResult>, T1, T2, T3, T4, T5, T6, T7, T8)

ConverterExtensions.ParseWith<TSource, T1, T2, T3, T4, T5, T6, T7, T8, T9, TResult>(TSource, Func<TSource, T1, T2, T3, T4, T5, T6, T7, T8, T9, TResult>, T1, T2, T3, T4, T5, T6, T7, T8, T9)

ConverterExtensions.As<TResult>(Object)

ConverterExtensions.As<TResult>(Object, TResult)

ConverterExtensions.As<TResult>(Object, TResult, IFormatProvider)

DelegateUtilityExtensions.Wrap<TResult>(TResult)

DelegateUtilityExtensions.DynamicWrap<TResult>(TResult)

TweakerExtensions.Adjust<T>(T, Func<T, T>)

TypeUtilityExtensions.Is<T>(Object)

TypeUtilityExtensions.IsNot<T>(Object)

TypeUtilityExtensions.IsNullable<T>(T)

WrapperExtensions.UseWrapper<T>(T, Action<IDictionary<String, Object>>)

WrapperExtensions.UseWrapper<T>(T, MemberInfo, Action<IDictionary<String, Object>>)

EnumerableUtilityExtensions.Yield<TSource>(TSource)

HashUtilityExtensions.ComputeHash(Object, Action<HashOptions>)

HmacUtilityExtensions.ComputeKeyedHash(Object, Byte[], Action<KeyedHashOptions>)