Interface IDataStoreService

Namespace

DevExpress.Xpo.DB

Assembly

DevExpress.Xpo.v24.1.dll

Defines a WCF service contract to access data directly via data store providers (objects implementing the DevExpress.Xpo.DB.IDataStore interface).

public interface IDataStoreService

Methods

Do(string, object)

Defines a service operation that, when implemented by a class, executes a specified command with specific parameters and returns the operation result.

OperationResult<object> Do(string command, object args)

Parameters

command string

A string specifying the command to execute.

args object

An object specifying the command‘s parameters.

Returns

OperationResult<object>

An OperationResult<object> denoting the operation result.

GetAutoCreateOption()

Defines a service operation that, when implemented by a class, returns which operations are performed when a data store is accessed for the first time.

OperationResult<AutoCreateOption> GetAutoCreateOption()

Returns

OperationResult<AutoCreateOption>

An OperationResult<DevExpress.Xpo.DB.AutoCreateOption> denoting the operation result.

ModifyData(ModificationStatement[])

Defines a service operation that, when implemented by a class, updates data in a data store using specified modification statements and returns the operation result.

OperationResult<ModificationResult> ModifyData(ModificationStatement[] dmlStatements)

Parameters

dmlStatements ModificationStatement[]

An array of data modification statements.

Returns

OperationResult<ModificationResult>

An OperationResult<DevExpress.Xpo.DB.ModificationResult> denoting the result of the data modifications.

SelectData(SelectStatement[])

Defines a service operation that, when implemented by a class, fetches data from a data store using specified query statements and returns the operation result.

OperationResult<SelectedData> SelectData(SelectStatement[] selects)

Parameters

selects SelectStatement[]

An array of query statements.

Returns

OperationResult<SelectedData>

An OperationResult<DevExpress.Xpo.DB.SelectedData> denoting the result of the data fetch.

UpdateSchema(bool, DBTable[])

Defines a service operation that, when implemented by a class, updates a data store’s schema according to specified settings and returns the operation result.

OperationResult<UpdateSchemaResult> UpdateSchema(bool doNotCreateIfFirstTableNotExist, DBTable[] tables)

Parameters

doNotCreateIfFirstTableNotExist bool

true if the schema should not be created when the table that corresponds to the first item in the tables array doesn’t exist in the data store; otherwise, false.

tables DBTable[]

An array of tables whose structure should be saved in the data store.

Returns

OperationResult<UpdateSchemaResult>

An OperationResult<DevExpress.Xpo.DB.UpdateSchemaResult> denoting the result of the update operation.