asynchronous programming with callbacks and futures

... updates of model objects are the invokeAndWait( ) and instance as an argument and then invoke that Runnable's run( ) method from inside the event queue The invokeAndWait() method makes the calling ... the user ID of the last user to make a change and the time the change was made When you update the database with that data, you use that user ID and timestamp in the WHERE clause If someone else ... arbitrarily associate attributes with values and the nature of that relationship For example, you can use the SearchCriteria to specify that an attribute must equal some value and a second attribute be

Ngày tải lên: 12/08/2014, 16:21

... bindings getCommand( ) and setCommand( ) public String getCommand( ); public void setCommand(String sql) throws java. sql.SQLException; Description These methods manage the SQL command used by ... Programming with JDBC and Java, Second Edition is from the CMCD PhotoCD Collection The cover image was manipulated by Edie Freedman using Adobe Photoshop 3.0 and page 249 JDBC and ... sql.SQLException;... personality and life into potentially dry subjects Ann Schirmer was the copyeditor and interior compositor for Database Programming with JDBC and Java, Second Edition

Ngày tải lên: 12/08/2014, 16:21

... the object and relational paradigms, they are light years ahead of where database vendors are with relational technology and how people use relational technology today 4.4.1 Blobs and Clobs ... variables in the parentheses—and does complex processing that does not (and cannot) occur in the embedded SQL you have been using so far It actually performs two SQL statements and a calculation all ... example) and do not read as cleanly as prepared SQL The harder decision therefore lies between prepared statements and stored procedures The bottom line in this decision is portability versus speed and

Ngày tải lên: 12/08/2014, 21:20

... developers to provide a clean, distributed programming architecture. CORBA has a very wide reach and is wrought with complexities associated with its grandiose goals. For example, it supports ... approach to handling searches won't work with someone else's custom approach to searching without forcing clients to deal with both search models Transactions page 90 JDBC and Java ... and directory service. It will probably want to know such things as the name of the JDBC driver you are using, the user ID and password to use for the connection, and the location of JDBC and

Ngày tải lên: 12/08/2014, 21:20

... application if it handles data storage and retrieval in the database process and data manipulation and presentation somewhere else. The server is the database engine that stores the data, and the client ... to changing environments and scale with growing user and data volume. Even though a client's primary task is the presentation of data, a fat client is loaded with knowledge completely ... spouse just withdrew! If a client, on the other hand, simply observes objects located in some centralized location, it always deals with the most recent information. When my spouse withdraws

Ngày tải lên: 12/08/2014, 21:20

... technologies with their own authentication and validation mechanisms You might, for example, have EJB component authentication and validation in the middle tier, but also have database authentication and ... single user ID and password to authenticate itself with the application server It does not matter who the actual end user is Similarly, the application server will support access by a handful of ... covering these issues because they are important to understanding distributed database application programming EJB is much simpler and more robust than what I present here in this book. [6] EJB

Ngày tải lên: 12/08/2014, 21:20

... updates of model objects are the invokeAndWait( ) and instance as an argument and then invoke that Runnable's run( ) method from inside the event queue The invokeAndWait() method makes the calling ... the user ID of the last user to make a change and the time the change was made When you update the database with that data, you use that user ID and timestamp in the WHERE clause If someone else ... arbitrarily associate attributes with values and the nature of that relationship For example, you can use the SearchCriteria to specify that an attribute must equal some value and a second attribute be

Ngày tải lên: 12/08/2014, 21:20

... the pattern is found within the Clob, the index at which the pattern first occurs is returned. If it does not exist within the Clob, then this method `returns -1. JDBC and Java 2 nd edition ... representation of a database session. It provides an application with Statement objects (and its subclasses) for that session. It also handles the transaction management for those statements. By ... a Connection once you are done with it, as it can leave resources open and result in an unresponsive database. This method implicitly closes any statements and result sets created by this connection.

Ngày tải lên: 12/08/2014, 21:20

... associated with it is closed execute( ), executeQuery( ) , and executeUpdate( ) public boolean execute(String sql) throws... isSigned(int column) throws SQLException Description page 213 JDBC and ... deletes the current row from this result set and from the database. findColumn( ) public int findColumn(String cname) throws SQLException JDBC and Java 2 nd edition p age 204 Description ... void refreshRow( ) throws SQLException Description JDBC and Java 2 nd edition p age 208 This method refreshes the current row with its most recent value from the database. relative( )

Ngày tải lên: 12/08/2014, 21:20

... introduced late in the text Chapter discusses structures and pointers and their use in creating and working with array variables The C language union and typedef are not discussed Chapter is a short ... introductory engineering programming xii Preface course for students with no prior computer programming experience in either C or Fortran Each section covered includes student exercises and programming examples ... complexity of the world we live in, with the astonishingly high rate of information exchange and shrinking global barriers, demands that engineers utilize and command information processing systems...

Ngày tải lên: 19/03/2014, 14:08

... SELECT title FROM albums, WHERE band_id IN (SELECT bands.band_id FROM bands, band_musician WHERE band_musician.musician_id = AND bands.band_id = band_musician.band_id) 2.2.7 Transaction Logic ... form of a search for all alternative bands: SELECT bands.band_name FROM bands, albums WHERE albums.category = 'alternative' AND bands.band_id = albums.band_id The newest thing you will notice ... the albums and bands tables through the band_id value in both tables In this example, you selected the names of bands from the bands table whose band ID appears in the albumstable with "alternative"...

Ngày tải lên: 25/03/2014, 10:41

... DEVELOPERS AND THE FUTURE OF MONO AND ANDROID 495 Best Practices, Hints, Tips, and Gotchas Android Honeycomb (3.0) and Ice Cream Sandwich (4.0) Fragments for All! Android Version and Device Fragmentation ... NET and specializing in web and mobile development He enjoys working with MVC frameworks, such as those provided with ASP.NET and the Android SDK, leveraging new and emerging technologies, and ... Mono for Android product, the basics of developing with Mono for Android, the Visual Studio plugin and MonoDevelop, and the basics of presenting data to a user with screen and data controls and how...

Ngày tải lên: 24/04/2014, 11:13

... and XML With AJAX, it is possible to update data without refreshing the entire page This increase in efficiency paid dividends, and nearly everything became more dynamic and responsive Even with ... Creating Stanzas 53 Strophe Builders Saying Hello 54 56 Handling Events Adding and Removing Handlers Stanza Matching Stanza Handler Functions Handling Responses in Hello More Hellos Summary Chapter ... Entering and Leaving a Room Sending and Receiving Messages Anonymity Creating Rooms Understanding Roles and Affiliations 167 168 71 71 172 173 Building the Interface Joining the Room Dealing with...

Ngày tải lên: 28/04/2014, 17:08

... help you understand why asynchronous programming is important, what issues make it hard, and how to be successful writing asynchronous code on the NET platform What Is Asynchronous Programming? ... introduce asynchronous programming to your world and understand the options available to you You should also have the knowledge to select the most appropriate tool for the asynchronous job in hand ... from one process to another), and all threads within a process share process-wide resources such as heap memory and operating system resources such as file handles and sockets The queue-based approach...

Ngày tải lên: 01/08/2014, 16:42

... you with an empty file You can destroy a file this way Either leave BX and CX alone while you're examining and "patching" a file with DEBUG, or write the initial values in BX and CX down, and ... file:///D|/Agent%20Folders/Chapter%204%20Learning%2 0and% 20Using%20Jed.htm Learning and Using Jed A Programming Environment for Assembly Language 4.1 A Place to Stand with Access to Tools >• 100 4.2 JED's Place to Stand >• 101 4.3 ... command line isn't difficult You can backspace over the existing command line and replace it with a new one, or zap the whole line at once by pressing Ctrl+X, and then typing in your new command...

Ngày tải lên: 12/08/2014, 08:23

... once you're finished with the job at hand You can get out with any of these commands: Ctrl+K/D saves the current file and exits to DOS Ctrl+K/Q ends the edit without saving and exits to DOS Alt+X ... word and press F8 The editor, however, includes a short form of this command sequence: move the cursor to any position within a word and press Ctrl+K/T Block Commands The simplest block command ... byte-sized register halves AH and AL; within BX there is BH and BL, and so on One nice thing about this arrangement is that you can read and change one half of a 16-bit number without disturbing the...

Ngày tải lên: 12/08/2014, 08:23