using data sources and connection pooling
Java Data Access—JDBC, JNDI, and JAXP phần 10 pdf
... java.io.ObjectOutput and java.io.ObjectInput to save and retrieve objects and primitive data types, using any of input and output The most common method is using a file stream by using an instance ... } } Using Data Access Objects Data access objects (DAO) enable you to separate business and data access logic inside Enterprise JavaBeans DAOs provide a simple API with which to access the database ... execute queries, and retrieve the results of those queries That is, DAOs abstract and encapsulate all access to the data source, managing the connection in order to obtain and store data Transparency...
Ngày tải lên: 14/08/2014, 06:21
Quick Reference
... menu and click OK The IDE adds an empty menu to the main window Expand the Actions node and find the command you want to add to the menu, then right-click the command node and choose Copy Expand ... these steps Choose Tools > Options and click the Advanced Options button in the Options window Expand the Server and External Tool Settings node and then the Diff and Merge Types node in the left ... window and select the desired browser from the Web Browser drop-down list From the main menu, choose Tools > Options In the Advanced Options view, expand the Editing node and select Java Sources...
Ngày tải lên: 03/10/2013, 04:20
Appendix A Quick Reference
... is a handle to R and v is an instance of V Assume i, j, and k are integer fields or local variables, s is a handle to String, and is a one-dimensional managed array of integers Assume Base and ... native_function(pinp); } }; The auto_handle Template #include using namespace msclr; auto_handle auto_r = R::ReturnHandleToNewR(); The lock Class #include using namespace msclr; ... class R { public: event EventHandler^ E1; // trivial event EventHandler^ evt; event EventHandler^ E2 { void add(EventHandler^ e) { evt += e; } void remove(EventHandler^ e) { evt -= e; } void...
Ngày tải lên: 05/10/2013, 08:20
Chapter 7 Quick Reference
... private static int objectCount; } Write the keyword const before the declaration of the field, and omit the static keyword For example: Declare a const field class Math { public const double...
Ngày tải lên: 20/10/2013, 15:15
OrCAD PSpice Quick Reference
... Paste command on the Edit menu Undo Undoes the last command performed Equivalent to the Undo command on the Edit menu Redo Redoes the last command performed Equivalent to the Redo command on the ... File command on the New menu (on the File menu) Open Opens a data file Equivalent to the Open command on the File menu Append file Opens the Append dialog box, which you use to append a data file ... Fourier) command on the Trace menu Performance Toggles the performance analysis on and off Equivalent to the Performance Analysis analysis command on the Trace menu NOTE: This toolbar button and corresponding...
Ngày tải lên: 23/10/2013, 07:15
Chapter 13 Quick Reference
... To Do this Release the resource with a using statement For example: class TextReader : IDisposable { public virtual void Dispose() { // ... resource at { a known point in } time in an } exception-safe manner class Example { void Use() { using (TextReader reader = ) { // use reader } } } ...
Ngày tải lên: 07/11/2013, 17:15
Chapter 14 Quick Reference
... set; } // no body } In the class or struct that implements the interface, declare the property and implement the accessors For example: struct ScreenPosition : IScreenPosition { public int X...
Ngày tải lên: 07/11/2013, 17:15
Chapter 16 Quick Reference
... event), and detach the delegate instance from the event by using the –= operator For example: Unsubscribe from an event Raise an class Clock { public void Stop() { ticker.Tick - = new TickHandler ... event Don't forget to check whether the event is null For example: class Ticker { public event TickHandler Tick; private void Notify() { if (this.Tick != null) { this.Tick(); } } } ...
Ngày tải lên: 07/11/2013, 17:15
Tài liệu Web Design in a Nutshell: A Desktop Quick Reference doc
... challenge (and headache!) in web design is dealing with the variety of browsers and platforms, each with its own support and implementation of HTML and scripting elements Features and capabilities ... browser and platform your viewers are using means you can take full advantage of the whistles and bells (and even proprietary features) appropriate to that browser If you are designing a standalone ... document by using tables and frames Tables are often used to create columns of text and to divide the web page up into logical sections By using all relative (percentage) measurements for tables and...
Ngày tải lên: 21/12/2013, 05:17
Tài liệu Checklist Quick Reference pdf
... access with the login and password commands • Disable or secure AUX access with the login and password commands • Disable or secure all VTY access with the login and password commands Cisco Router ... to demonstrate and document that they performed their work to a professionally acceptable level The auditor must be competent and must also understand professional auditing standards to the point ... sure that the scope and focus of the audit are defined and agreed upon This is the time to define what resources will be needed for the audit, how the audit will be performed, and what the deliverables...
Ngày tải lên: 21/12/2013, 18:15