O''''''''Reilly Network For Information About''''''''s Book part 141 doc

... to quantum 6. As before, all the other IRA entries for items in quantum 3 still refer to the same data items as before, after we have adjusted the item index to account for the removed data. ... indexes pointing to nothing. We have already seen part of the solution to this problem: whenever we are adding an item to a quantum, we search for an unused item index entry rather than s...

Ngày tải lên: 07/07/2014, 08:20

... ever-rising river for the novice to navigate. My question is this: how high is too high? I think we're already getting too high for most novices. I no longer feel comfortable telling a ... about an alternative to Java. It's different. We're going to take Java for granted just like we take CPUs for granted: it's necessary. It was once the place where all the m...

Ngày tải lên: 07/07/2014, 08:20

... characteristics that many of us take for granted. You can find good Java developers everywhere. No one ever gets fired for choosing Java. It's mature and ready for outsourcing. You can get education. ... to do almost everything. Java is at once a mobile computing platform, a web-based applications language, a systems language for enterprise-plumbing code called middleware , a...

Ngày tải lên: 07/07/2014, 08:20

... proved to be a problem for adoption for some Smalltalk frameworks. Object- oriented databases are an elegant solution that ignores the current political realities. Don't force structure on ... schemas, as they exist. Forcing a surrogate unique identifier rather than a composite primary key also ignores existing realities. Perform, and scale High database performance is the sin...

Ngày tải lên: 07/07/2014, 08:20

... it a symbol for the Locations class. This method will fire more metaprogramming code that actually adds the properties and methods to your code that will manage the relationships for you. Next, ... in, between the <% and %> tags. First, you'll need to make sure the view has all the information it needs. You'll do this in the edit method, in the controller. Change t...

Ngày tải lên: 07/07/2014, 08:20

... higher-level components. For example, you could take this code: checkoutAddress.showForm( ); if(checkoutAddress.getSeparateBilling) checkoutBilling.showForm( ); creditCardNumber.showForm( ); and ... before you could answer.  To optimize things, you'd have to decide how much information you should keep close bysay, in your briefcaseversus at home, in your filing cabinets....

Ngày tải lên: 07/07/2014, 08:20

... have common code for the framework. Only the last part of the call stack should be different from one continuation to the next. Partial continuations should provide a good performance boost. ... the JRuby project in the months just before publication has made incredible strides. It now passes over 90% of the test cases for the basic Ruby platform. When it reaches Version 1.0 and ca...

Ngày tải lên: 07/07/2014, 08:20

... library. The author of Filesystem is Beman Dawes. Boost.Format This library adds functionality for formatting arguments according to format strings, similar to printf, but with the addition ... Besides eliminating the opportunity for such mismatches, Format also enables custom formatting of user- defined types. [4] [4] This is not possible with formatting functions using a variab...

Ngày tải lên: 07/07/2014, 08:20

... shared_ptr a general class for handling resource management, rather than "just" handling dynamically allocated objects. There is a small overhead in size for shared_ptr compared to ... use a free function as a factory for shared_ptr<A> here, because the nested deleter class is private to A. Using this scheme, it isn't possible for users to create As on the sta...

Ngày tải lên: 07/07/2014, 08:20

... Archive (RAA), which has a collection of Ruby programs, libraries, documentations, and binary packages compiled for specific platforms. You can access RAA at http://www.ruby-lang.org/en/raa.html. ... Matsumoto Chapter 6. Ruby Updates 6.2 Changes from 1.6.5 to 1.7.1 The following information details the changes that are occurring in development versions 1.7.1 and 1.8...

Ngày tải lên: 07/07/2014, 08:20