Interface IRepository

Data repository (data object collection) basic interface

Inherited Members
Namespace: XData
Assembly: XData.docfx.dll
Syntax
public interface IRepository : IDataQuery, IOrderedQueryable, IQueryable, IEnumerable, IDisposable

Properties

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Count

Get repository object count

Declaration
long Count { get; }
Property Value
Type Description
Int64
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Editable

Get editable state of repository objects

Declaration
bool Editable { get; }
Property Value
Type Description
Boolean
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FixedQuery

Data repository fixed query

Declaration
bool FixedQuery { get; set; }
Property Value
Type Description
Boolean
Remarks

Used to cache record set once (at first call) and have an access to cached data multiple times

Hint: Useful when needed to read the same data multiple times according dynamic rules and all records count approximately equal or less then requests count

Examples
var q = dataScope.GetRepository<Some>().Where(x => x.SomeField == 1);


q.FixedQuery = true;


q.FirstOrDefault(x => x.OtherField == 3); //Queried across the cached data
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HasCurrentRecord

Check current record is assigned

Declaration
bool HasCurrentRecord { get; }
Property Value
Type Description
Boolean
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Manual

Manual repository flag

Declaration
bool Manual { get; set; }
Property Value
Type Description
Boolean
Remarks

Manual repositories can be filled by attached objects only

Hint: Use manual repositories to build logic filled repositories

Hint: Use manual repositories as mock repositories for testing

Hint: Object attaching (see Attach(T, DataObjectState, IEnumerable<KeyValuePair<String, Object>>, AttachedHandler<T>[])) set Manual property to True automatically

WARNING! Detach objects (see Detach(Predicate<T>)) NOT set Manual property to False automatically!

See Also
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ShowSubtree

Data repository tree modifier

Declaration
bool ShowSubtree { get; set; }
Property Value
Type Description
Boolean
Remarks

Used to show/hide subtree related items in slave view when master is tree

When ShowSubtree = false - slave contains selected node child items only

When ShowSubtree = true - selected node and it's subtree child items

Works with DirectLink: External links marked as DirectLink is filled while ShowSubtree is false and omitted otherwise

See Also

Methods

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Clear(DataSubmitFlag)

Clear repository objects

Declaration
bool Clear(DataSubmitFlag flag = DataSubmitFlag.None)
Parameters
Type Name Description
DataSubmitFlag flag
Returns
Type Description
Boolean
Remarks

All objects corresponded current repository limitations will be deleted through single operation

WARNING! Trigger logic BeforeDelete and AfterDelete are not used in this case!

Use BeforeClear and AfterClear instead!

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CloseChilds()

Close child repositories

Declaration
void CloseChilds()
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DetachChild<TChild>(String)

Detach child repository

Declaration
void DetachChild<TChild>(string alias = null)
    where TChild : class, IDataObject, new()
Parameters
Type Name Description
String alias
Type Parameters
Name Description
TChild
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FindParent<TParent>(out IRepository<TParent>, String)

Find parent repository

Declaration
bool FindParent<TParent>(out IRepository<TParent> parent, string alias = null)
    where TParent : class, IDataObject, new()
Parameters
Type Name Description
IRepository<TParent> parent

Parent repository
String alias

Parent repository alias
Returns
Type Description
Boolean

Find success
Type Parameters
Name Description
TParent

Parent repository type
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GetChild<TChild>(String, ISecuritySession, Variable[])

Get a child repository

Declaration
IRepository<TChild> GetChild<TChild>(string alias = null, ISecuritySession security = null, params Variable[] variables)
    where TChild : class, IDataObject, new()
Parameters
Type Name Description
String alias

Child alias
ISecuritySession security

Security session
Variable[] variables

Child variables
Returns
Type Description
IRepository<TChild>

Repository
Type Parameters
Name Description
TChild

Child type
Remarks

If child repository not exists it will be created and linked to base repository as a child

When alias parameter value is not set child object type name used as child repository alias

See Also
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Refresh()

Refresh repository data cache

Declaration
void Refresh()

Extension Methods

See Also