Class DirectFileDeleteTransaction

  • All Implemented Interfaces:
    ITwoPhaseIOTransaction, ITwoPhaseTransaction

    public final class DirectFileDeleteTransaction
    extends Object
    The IO operation may be done before requestCommit is called, on a call of the process method. Without a process() call the IO Operation is done by the requestCommit call.
    • Constructor Detail

      • DirectFileDeleteTransaction

        public DirectFileDeleteTransaction​(File p_directoryToDelete)
                                    throws IOException
        p_directoryToDelete -
    • Method Detail

      • requestCommit

        public boolean requestCommit()
        Description copied from interface: ITwoPhaseTransaction
        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.

        Specified by:
        requestCommit in interface ITwoPhaseTransaction
      • process

        public boolean process()
      • getFileToDelete

        public final File getFileToDelete()
        Get the source file.
        The value p_fileSrc that was passed to the contructor.
      • hasBackup

        public final boolean hasBackup()
        Specified by:
        hasBackup in interface ITwoPhaseIOTransaction
        true if the transaction has left a backup file, or false otherwise (e.g. if the destination file did not exist before the transaction).
      • getBackup

        public final File getBackup()
        Specified by:
        getBackup in interface ITwoPhaseIOTransaction
        The backup file that was left by the transaction, or null if none was created (e.g. if the destination file did not exist before the transaction).
      • rollback

        public boolean rollback()
        Try to rollback the file transaction.
        Specified by:
        rollback in interface ITwoPhaseTransaction
        true if the rollback was successful, or false otherwise. In the latter case ITwoPhaseTransaction.getLastError() may give additional information about why the rollback failed, and a backup file may exist then.
      • getLastError

        public final Throwable getLastError()
        Specified by:
        getLastError in interface ITwoPhaseTransaction
        The last exception that was caugth during the transaction, or null if no error occurred;