DbProviderServices Class
Represents a set of methods for creating correct command definition objects and accessing provider manifest information.
Assembly: System.Data.Entity (in System.Data.Entity.dll)
The DbProviderServices type exposes the following members.
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CreateCommandDefinition(DbCommand) | Creates a DbCommandDefinition that uses the specified DbCommand. |
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CreateCommandDefinition(DbCommandTree) | Creates a command definition object from the specified command tree. |
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CreateCommandDefinition(DbProviderManifest, DbCommandTree) | Creates a DbCommandDefinition object from a command tree. |
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CreateDatabase | Creates a database indicated by connection and creates schema objects (tables, primary keys, foreign keys) based on the contents of a StoreItemCollection. |
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CreateDatabaseScript | Generates a data definition langauge (DDL script that creates schema objects (tables, primary keys, foreign keys) based on the contents of the StoreItemCollection parameter and targeted for the version of the database corresponding to the provider manifest token. |
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CreateDbCommandDefinition | Creates a command definition object for the specified provider manifest and command tree. |
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DatabaseExists | Returns a value indicating whether a given database exists on the server and whether schema objects contained in the storeItemCollection have been created. |
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DbCreateDatabase | Creates a database indicated by connection and creates schema objects (tables, primary keys, foreign keys) based on the contents of a StoreItemCollection. |
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DbCreateDatabaseScript | Generates a data definition langauge (DDL script that creates schema objects (tables, primary keys, foreign keys) based on the contents of the StoreItemCollection parameter and targeted for the version of the database corresponding to the provider manifest token. |
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DbDatabaseExists | Returns a value indicating whether a given database exists on the server and whether schema objects contained in the storeItemCollection have been created. |
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DbDeleteDatabase | Deletes all store objects specified in the store item collection from the database and the database itself. |
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DeleteDatabase | Deletes all store objects specified in the store item collection from the database and the database itself. |
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Equals(Object) | Determines whether the specified Object is equal to the current Object. (Inherited from Object.) |
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Finalize | Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.) |
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GetDbProviderManifest | When overridden in a derived class, returns an instance of a class that derives from the DbProviderManifest. |
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GetDbProviderManifestToken | Returns provider manifest token given a connection. |
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GetHashCode | Serves as a hash function for a particular type. (Inherited from Object.) |
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GetProviderFactory | Retrieves the DbProviderFactory based on the specified DbConnection. |
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GetProviderManifest | Returns the provider manifest by using the specified version information. |
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GetProviderManifestToken | Returns provider manifest token. |
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GetProviderServices | Returns providers given a connection. |
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GetType | Gets the Type of the current instance. (Inherited from Object.) |
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MemberwiseClone | Creates a shallow copy of the current Object. (Inherited from Object.) |
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ToString | Returns a string that represents the current object. (Inherited from Object.) |
The DBProviderServices class is the starting point for accessing the SQL generation layer to convert command trees into DbCommands. This class also provides additional data storage information, such as the provider manifest, which describes storage-specific type mappings and functions, and the storage-specific mapping files to generate queries for table and column information.
DbProviderServices provides access to the provider manifest, which encapsulates the provider types, their mapping to EDM primitive types, the provider functions and the mapping files for the store schema definition.
DbProviderServices also serves as an entry point for passing a query of modification command tree (DbQueryCommandTree or DbModificationCommandTree) to the provider, which let the provider generate a store specific command. To support this functionality, providers supporting a relational store with SQL 99 compliant querying capabilities would typically contain a module that is responsible for generating a backend specific command text based on a given command tree. That module would typically consist of a component for handling query SQL generation and a component for handing modification SQL generation.
Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
