SqlSyncMetadataStoreSerializer.DeserializeReplicaMetadata Method

Deserializes the contents of a canonical metadata file to a metadata storage service store. Optionally upgrades the metadata store format when the provider version changes.

Namespace:  Microsoft.Synchronization.MetadataStorage
Assembly:  Microsoft.Synchronization.MetadataStorage (in Microsoft.Synchronization.MetadataStorage.dll)

Syntax

'Declaration
Public Overrides Function DeserializeReplicaMetadata ( _
    serializedFilePath As String, _
    expectedProviderCompatibilityVersion As UInteger, _
    providerUpgradeCallback As IProviderUpgradeCallback _
) As Boolean
'Usage
Dim instance As SqlSyncMetadataStoreSerializer
Dim serializedFilePath As String
Dim expectedProviderCompatibilityVersion As UInteger
Dim providerUpgradeCallback As IProviderUpgradeCallback
Dim returnValue As Boolean

returnValue = instance.DeserializeReplicaMetadata(serializedFilePath, _
    expectedProviderCompatibilityVersion, _
    providerUpgradeCallback)

public override bool DeserializeReplicaMetadata(
    string serializedFilePath,
    uint expectedProviderCompatibilityVersion,
    IProviderUpgradeCallback providerUpgradeCallback
)

public:
virtual bool DeserializeReplicaMetadata(
    String^ serializedFilePath, 
    unsigned int expectedProviderCompatibilityVersion, 
    IProviderUpgradeCallback^ providerUpgradeCallback
) override

abstract DeserializeReplicaMetadata : 
        serializedFilePath:string * 
        expectedProviderCompatibilityVersion:uint32 * 
        providerUpgradeCallback:IProviderUpgradeCallback -> bool 
override DeserializeReplicaMetadata : 
        serializedFilePath:string * 
        expectedProviderCompatibilityVersion:uint32 * 
        providerUpgradeCallback:IProviderUpgradeCallback -> bool 

public override function DeserializeReplicaMetadata(
    serializedFilePath : String, 
    expectedProviderCompatibilityVersion : uint, 
    providerUpgradeCallback : IProviderUpgradeCallback
) : boolean

Parameters

• serializedFilePath
  Type: System.String
  The file that contains the serialized metadata for a particular replica.

• expectedProviderCompatibilityVersion
  Type: System.UInt32
  The provider compatibility version that is expected to be included in the canonical metadata file. If the expected version does not match the actual version, deserialization either fails by design when providerUpgradeCallback is a null reference (Nothing in Visual Basic), or providerUpgradeCallback methods are called when providerUpgradeCallback is not null reference (Nothing in Visual Basic). For more information, see fb008b8f-a90b-4cbc-b718-7cb9c92a26ea Accessing Metadata from Components with Different Versions and b3ff82fb-f946-4b7f-8a32-655535cf5e92 Upgrading the Metadata Store Version .

• providerUpgradeCallback
  Type: Microsoft.Synchronization.MetadataStorage.IProviderUpgradeCallback
  Callback methods that are called when the metadata store format must be upgraded because the provider version contained in the serialized metadata is not the same as expectedProviderCompatibilityVersion.

Return Value

Type: System.Boolean
true when there is metadata to deserialize; otherwise, false.

Exceptions

Remarks

Three conditions must be met before this method is called:

• The metadata store must be opened. Open a store by calling OpenStore or CreateStore.

• The replica for which data is deserialized must already have its metadata store initialized. To initialize a metadata store, call InitializeReplicaMetadata.

• An active transaction must be available on the SqlMetadataStore object. Start a transaction by calling BeginTransaction.

Calling this method when any of these conditions is not met results in an exception.

This method can be used as part of the procedure to upgrade the metadata schema when the provider version changes. For more information, see Upgrading the Metadata Store Version.

See Also

Reference

SqlSyncMetadataStoreSerializer Class

Microsoft.Synchronization.MetadataStorage Namespace