Gets the current (active) transaction.
Syntax
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Get-Transaction [<CommonParameters>] |
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Description
The Get-Transaction cmdlet gets an object that represents the current transaction in the session.
This cmdlet never returns more than one object, because only one transaction is active at a time. If you start one or more independent transactions (by using the Independent parameter of Start-Transaction), the most recently started transaction is active, and that is the transaction that Get-Transaction returns.
When all active transactions have either been rolled back or committed, Get-Transaction shows the transaction that was most recently active in the session.
The Get-Transaction cmdlet is one of a set of cmdlets that support the transactions feature in Windows PowerShell. For more information, see about_Transactions.
Parameters
<CommonParameters>
This command supports the common parameters: Verbose, Debug, ErrorAction, ErrorVariable, OutBuffer, OutVariable, WarningAction, and WarningVariable. For more information, see about_CommonParameters.
Inputs and Outputs
The input type is the type of the objects that you can pipe to the cmdlet. The return type is the type of the objects that the cmdlet returns.
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Inputs |
None You cannot pipe objects to this cmdlet. |
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Outputs |
System.Management.Automation.PSTransaction Get-Transaction returns an object that represents the current transaction. |
Example 1
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C:\PS>start-transaction C:\PS> get-transaction RollbackPreference SubscriberCount Status ------------------ --------------- ------ Error 1 Active |
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Description
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This command uses the Get-Transaction cmdlet to get the current transaction.
Example 2
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C:\PS>get-transaction | get-member
Name MemberType Definition
---- ---------- ----------
Dispose Method System.Void Dispose(), System.Void Dispose(Boolean disposing)
Equals Method System.Boolean Equals(Object obj)
GetHashCode Method System.Int32 GetHashCode()
GetType Method System.Type GetType()
ToString Method System.String ToString()
IsCommitted Property System.Boolean IsCommitted {get;}
IsRolledBack Property System.Boolean IsRolledBack {get;}
RollbackPreference Property System.Management.Automation.RollbackSeverity RollbackPreference {get;}
SubscriberCount Property System.Int32 SubscriberCount {get;set;}
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Description
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This command uses the Get-Member cmdlet to show the properties and methods of the transaction object.
Example 3
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C:\PS>cd hklm:\software HKLM:\SOFTWARE> Start-Transaction HKLM:\SOFTWARE> New-Item MyCompany -UseTransaction HKLM:\SOFTWARE> Undo-Transaction HKLM:\SOFTWARE> Get-Transaction RollbackPreference SubscriberCount Status ------------------ --------------- ---------- Error 0 RolledBack |
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Description
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This command shows the property values of a transaction object for a transaction that has been rolled back.
Example 4
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C:\PS>cd hklm:\software HKLM:\SOFTWARE> Start-Transaction HKLM:\SOFTWARE> New-Item MyCompany -UseTransaction HKLM:\SOFTWARE> Complete-Transaction HKLM:\SOFTWARE> Get-Transaction RollbackPreference SubscriberCount Status ------------------ --------------- --------- Error 1 Committed |
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Description
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This command shows the property values of a transaction object for a transaction that has been committed.
Example 5
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C:\PS>cd hklm:\software HKLM:\SOFTWARE> Start-Transaction HKLM:\SOFTWARE> New-Item MyCompany -UseTransaction HKLM:\SOFTWARE> Start-Transaction HKLM:\SOFTWARE> New-Item MyCompany2 -UseTransaction HKLM:\SOFTWARE> Get-Transaction RollbackPreference SubscriberCount Status ------------------ --------------- ------ Error 2 Active HKLM:\SOFTWARE> Complete-Transaction HKLM:\SOFTWARE> Get-Transaction RollbackPreference SubscriberCount Status ------------------ --------------- ------ Error 1 Active HKLM:\SOFTWARE> Complete-Transaction HKLM:\SOFTWARE> Get-Transaction RollbackPreference SubscriberCount Status ------------------ --------------- --------- Error 1 Committed |
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Description
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This example shows the effect on the transaction object of starting a transaction while another transaction is in progress. Typically, this happens when a script that runs a transaction includes a function or calls a script that contains another complete transaction.
Unless the second Start-Transaction command includes the Independent parameter, Start-Transaction does not create a new transaction. Instead, it adds a second subscriber to the original transaction.
The first Start-Transaction command starts the transaction. A New-Item command with the UseTransaction parameter is part of the transaction.
A second Start-Transaction command adds a subscriber to the transaction. The next New-Item command is also part of the transaction.
The first Get-Transaction command shows the multi-subscriber transaction. Notice that the subscriber count is 2.
The first Complete-Transaction command does not commit the transaction, but it reduces the subscriber count to 1.
The second Complete-Transaction command commits the transaction.
Example 6
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C:\PS>HKLM:\SOFTWARE> Start-Transaction HKLM:\SOFTWARE> Get-Transaction RollbackPreference SubscriberCount IsRolledBack IsCommitted ------------------ --------------- ------------ ----------- Error 1 False False HKLM:\SOFTWARE> Start-Transaction -Independent HKLM:\SOFTWARE> Get-Transaction RollbackPreference SubscriberCount IsRolledBack IsCommitted ------------------ --------------- ------------ ----------- Error 1 False False HKLM:\SOFTWARE> Complete-Transaction HKLM:\SOFTWARE> Get-Transaction HKLM:\SOFTWARE> Complete-Transaction HKLM:\SOFTWARE> Get-Transaction |
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Description
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This example shows the effect on the transaction object of starting an independent transaction while another transaction is in progress.
The first Start-Transaction command starts the transaction. A New-Item command with the UseTransaction parameter is part of the transaction.
A second Start-Transaction command adds a subscriber to the transaction. The next New-Item command is also part of the transaction.
The first Get-Transaction command shows the multi-subscriber transaction. Note that the subscriber count is 2.
The Complete-Transaction command reduces the subscriber count to 1, but it does not commit the transaction.
The second Complete-Transaction command commits the transaction.