Examples of VirtualLibraryEngine

org.apache.tapestry.vlib.VirtualLibraryEngine
The engine for the Virtual Library. This exists to implement the external service, which allows the {@link org.apache.tapestry.vlib.pages.ViewBook}and {@link org.apache.tapestry.vlib.pages.ViewPerson}pages to be bookmarked, and to provide a way for shutting down the application when the user logs out. @version $Id: VirtualLibraryEngine.java,v 1.12 2004/04/30 15:17:22 hlship Exp $ @author Howard Lewis Ship

Examples of org.apache.tapestry.vlib.VirtualLibraryEngine

        }


        Integer[] keys = (Integer[]) selectedBooks.toArray(new Integer[count]);
        Person toUser = getToUser();


        VirtualLibraryEngine vengine = (VirtualLibraryEngine) getEngine();


        int i = 0;
        while (true)
        {
            try
            {
                IOperations operations = vengine.getOperations();


                operations.transferBooks(toUser.getId(), keys);


                break;
            }
            catch (FinderException ex)
            {
                throw new ApplicationRuntimeException(ex);
            }
            catch (RemoteException ex)
            {
                vengine.rmiFailure("Unable to transfer ownership of books.", ex, i++);
            }
        }


        Person fromUser = getFromUser();
        IMessageProperty selectPage = (TransferBooksSelect) cycle.getPage("TransferBooksSelect");

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Examples of org.apache.tapestry.vlib.VirtualLibraryEngine

        cycle.activate(selectPage);
    }


    private IPropertySelectionModel buildUserBookModel(Person user)
    {
        VirtualLibraryEngine vengine = (VirtualLibraryEngine) getEngine();
        Book[] books = null;


        int i = 0;
        while (true)
        {
            books = null;


            try
            {
                IBookQuery query = vengine.createNewQuery();


                int count = query.ownerQuery(user.getId(), null);


                if (count > 0)
                    books = query.get(0, count);


                break;
            }
            catch (RemoteException ex)
            {
                vengine.rmiFailure(
                    "Unable to retrieve books owned by " + user.getNaturalName() + ".",
                    ex,
                    i++);
            }
        }

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Examples of org.apache.tapestry.vlib.VirtualLibraryEngine

        return model;
    }


    private Person readPerson(Integer personId)
    {
        VirtualLibraryEngine vengine = (VirtualLibraryEngine) getEngine();


        return vengine.readPerson(personId);
    }

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Examples of org.apache.tapestry.vlib.VirtualLibraryEngine

     * 
     **/


    private void readPublishers()
    {
        VirtualLibraryEngine vengine = (VirtualLibraryEngine) getEngine();
        Publisher[] publishers = null;


        int i = 0;
        while (true)
        {
            try
            {
                IOperations operations = vengine.getOperations();


                publishers = operations.getPublishers();


                break;
            }
            catch (RemoteException ex)
            {
                vengine.rmiFailure(getMessage("read-failure"), ex, i++);
            }
        }


        ListEditMap map = new ListEditMap();

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Examples of org.apache.tapestry.vlib.VirtualLibraryEngine

                ? null
                : (Integer[]) deletedIds.toArray(new Integer[deletedIds.size()]);


        // Now, push the updates through to the database


        VirtualLibraryEngine vengine = (VirtualLibraryEngine) getEngine();


        int i = 0;
        while (true)
        {
            try
            {
                IOperations operations = vengine.getOperations();


                operations.updatePublishers(updated, deleted);


                break;
            }
            catch (FinderException ex)
            {
                throw new ApplicationRuntimeException(ex);
            }
            catch (RemoveException ex)
            {
                throw new ApplicationRuntimeException(ex);
            }
            catch (RemoteException ex)
            {
                vengine.rmiFailure(getMessage("update-failure"), ex, i++);
            }
        }


        // Clear any cached info about publishers.


        vengine.clearCache();
    }

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Examples of org.apache.tapestry.vlib.VirtualLibraryEngine


    public void beginEdit(IRequestCycle cycle, Integer bookId)
    {
        setBookId(bookId);


        VirtualLibraryEngine vengine = (VirtualLibraryEngine) getEngine();


        int i = 0;
        while (true)
        {
            try
            {
                // Get the attributes as a source for our input fields.


                IOperations operations = vengine.getOperations();


                setAttributes(operations.getBookAttributes(bookId));


                break;
            }
            catch (FinderException ex)
            {
                throw new ApplicationRuntimeException(ex);
            }
            catch (RemoteException ex)
            {
                vengine.rmiFailure(
                    "Remote exception setting up page for book #" + bookId + ".",
                    ex,
                    i++);
            }
        }

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Examples of org.apache.tapestry.vlib.VirtualLibraryEngine

        if (isInError())
            return;


        // OK, do the update.


        VirtualLibraryEngine vengine = (VirtualLibraryEngine)cycle.getEngine();
        Integer bookId = getBookId();


        int i = 0;
        while (true)
        {
            IOperations bean = vengine.getOperations();


            try
            {
                if (publisherId != null)
                    bean.updateBook(bookId, attributes);
                else
                {
                    bean.updateBook(bookId, attributes, publisherName);
          vengine.clearCache();
                }


                break;
            }
            catch (FinderException ex)
            {
                throw new ApplicationRuntimeException(ex);
            }
            catch (CreateException ex)
            {
                throw new ApplicationRuntimeException(ex);
            }
            catch (RemoteException ex)
            {
                vengine.rmiFailure("Remote exception updating book #" + bookId + ".", ex, i++);


                continue;
            }
        }

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Examples of org.apache.tapestry.vlib.VirtualLibraryEngine


    public abstract Integer getTargetUserId();


    public void formSubmit(IRequestCycle cycle)
    {
        VirtualLibraryEngine vengine = (VirtualLibraryEngine) getEngine();


        Integer targetUserId = getTargetUserId();


        Person target = vengine.readPerson(targetUserId);


        List selectedBooks = getSelectedBooks();


        int count = Tapestry.size(selectedBooks);


        if (count == 0)
        {
            setError(format("select-at-least-one-book", target.getNaturalName()));
            return;
        }


        Integer[] bookIds = (Integer[]) selectedBooks.toArray(new Integer[count]);


        int i = 0;
        while (true)
        {
            IOperations operations = vengine.getOperations();


            try
            {
                operations.transferBooks(targetUserId, bookIds);


                break;
            }
            catch (FinderException ex)
            {
                throw new ApplicationRuntimeException(ex);
            }
            catch (RemoteException ex)
            {
                vengine.rmiFailure(getMessage("update-failure"), ex, i++);
            }
        }


        MyLibrary myLibrary = (MyLibrary) cycle.getPage("MyLibrary");

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Examples of org.apache.tapestry.vlib.VirtualLibraryEngine

        myLibrary.activate(cycle);
    }


    private IPropertySelectionModel buildPersonModel()
    {
        VirtualLibraryEngine vengine = (VirtualLibraryEngine) getEngine();
        Visit visit = (Visit) vengine.getVisit();
        Integer userPK = visit.getUserId();


        Person[] persons = null;


        int i = 0;
        while (true)
        {
            IOperations operations = vengine.getOperations();


            try
            {
                persons = operations.getPersons();


                break;
            }
            catch (RemoteException ex)
            {
                vengine.rmiFailure(getMessage("read-users-failure"), ex, i++);
            }
        }


        EntitySelectionModel result = new EntitySelectionModel();

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Examples of org.apache.tapestry.vlib.VirtualLibraryEngine

        }
    }


    private IPropertySelectionModel buildBooksModel()
    {
        VirtualLibraryEngine vengine = (VirtualLibraryEngine) getEngine();
        Visit visit = (Visit) vengine.getVisit();
        Integer userPK = visit.getUserId();
        Book[] books = null;


        int i = 0;
        while (true)
        {
            books = null;


            try
            {
                IBookQuery query = vengine.createNewQuery();


                int count = query.ownerQuery(userPK, null);


                if (count > 0)
                    books = query.get(0, count);


                break;
            }
            catch (RemoteException ex)
            {
                vengine.rmiFailure(getMessage("read-books-failure"), ex, i++);
            }
        }


        EntitySelectionModel result = new EntitySelectionModel();

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