ITwoPhaseTransaction (Intrexx 10.0 Groovy Documentation)

All Known Subinterfaces:

ITwoPhaseIOTransaction

All Known Implementing Classes:

DirectDirectoryCreateTransaction, DirectDirectoryDeleteTransaction, DirectDirectoryTransaction, DirectFileCopyTransaction, DirectFileDeleteTransaction, DirectFileMoveTransaction, IndirectDeleteDirectoryTransaction, IndirectDeleteFileTransaction, IndirectDirectoryCreateTransaction, IndirectDirectoryTransaction, IndirectFileCopyTransaction, IndirectFileCreateFileTransaction, IndirectFileMoveTransaction, IxFileUploadTransaction
```
public interface ITwoPhaseTransaction
```
A simple two-phase commit file system transaction.
The basic usage pattern is:
```
  for each ISimpleFileSystemTransaction cohort
      allGood = allGood && cohort.requestCommit()

  if allGood
  {
      for each ISimpleFileSystemTransaction cohort
          cohort.commit()
  }
  else
  {
      for each ISimpleFileSystemTransaction cohort
          cohort.rollback()
  }
 
```

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`commit()`	Commit the transaction.
`Throwable`	`getLastError()`
`boolean`	`requestCommit()`	Request a file system transaction.
`boolean`	`rollback()`	Try to rollback the file system transaction.

- Method Detail
  - requestCommit
```
boolean requestCommit()
```
    Request a file system transaction.
    When this method returns true it has sucessfully moved the source file to it's new location, and has successfully created a backup copy of the destination file, if it existed before.
    
    Throws:
    
    IllegalStateException - If the two-phase commit protocol was violated.
  - commit
```
void commit()
```
    Commit the transaction.
    
    Throws:
    
    IllegalStateException - If the two-phase commit protocol was violated.
  - rollback
```
boolean rollback()
```
    Try to rollback the file system transaction.
    
    Returns:
    
    true if the rollback was successful, or false otherwise. In the latter case getLastError() may give additional information about why the rollback failed. A backup may exist then.
    
    Throws:
    
    IllegalStateException - If the two-phase commit protocol was violated.
  - getLastError
```
Throwable getLastError()
```
    Returns:
    
    The last exception that was caugth during the transaction, or null if no error occurred;