Class DataStoreTransactionManager


  • public class DataStoreTransactionManager
    extends Object
    Central class to manage datastore transactions from OpenJUMP. There is only one DataStoreTransactionManager (singleton) for the whole Workbench. This transactionManager register layers with a RWDataStoreDataSource, and each RWDataStoreDataSource record user edits (Evolutions) between two transactions. The commit method of DataStoreTransactionManager call the commit method of each registered RWDataStoreDataSource.
    • Constructor Detail

      • DataStoreTransactionManager

        protected DataStoreTransactionManager()
        Don't use this constructor. Use getTransactionManager instead. The constructor is made protected to be able to sublass it.
    • Method Detail

      • registerLayer

        public void registerLayer​(Layer layer,
                                  Task task)
        Register a new Layer in the DataStoreTransactionManager. Edits happening in this Layer will be recorded in the associated RWDataStoreDataSource.
        Parameters:
        layer - the layer to be listened to.
        task - the task in which the layer is.
      • getLayers

        public Collection<Layer> getLayers()
        Get layers registered in the DataStoreTransactionManager.
      • getTask

        public Task getTask​(Layer layer)
      • update

        public void update​(TaskFrame taskFrame)
        Update all layers associated to a RWDataStoreDataSource.
      • inspect

        public void inspect​(TaskFrame taskFrame)
      • commit

        public void commit()
                    throws Exception
        Commit all edits permformed on all registered layers since last commit.
        Throws:
        Exception