O''''''''Reilly Network For Information About''''''''s Book part 2 docx

O''''Reilly Network For Information About''''s Book part 2 docx

... take Java for granted just like we take CPUs for granted: it's necessary. It was once the place where all the money was; now it's more of a commodity. 1 .2. 2. 1 .2. 2.1. Complexity ... this higher river of complexity will flood, forcing us to adopt a new abstraction, sooner rather than later. 1 .2. 2 .2. Rapid revolution 1 .2. Boiling Frogs Let's look at it still ... 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...

O''''Reilly Network For Information About''''s Book part 16 docx

... seems like a natural place for that to form. 5.3 .2. Economics While open source frameworks usually lend a certain intellectual honesty to a project, commercial forces will have the deciding ... 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 single ... High database performance is the single most important indicator of good application performance. 5 .2. 2. Transactions and Security Enterprise developers need the ability to define a business...

O''''Reilly Network For Information About''''s Book part 23 docx

... 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 the edit ... good Ajax integration. Like Struts and Spring, Action Pack provides good support for building and validating forms. You'll need to manage your solution, and Action Pack builds in some features...

O''''Reilly Network For Information About''''s Book part 24 docx

... 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.  When information ... showCheckoutWizard( ) { checkoutAddress.showForm( ); if(checkoutAddress.getSeparateBilling) checkoutBilling.showForm( ); creditCardNumber.showForm( ); } so the usage becomes: cart.showCheckoutWizard(...

O''''Reilly Network For Information About''''s Book part 27 docx

... and dialects for all major operating systems. If something challenges Java soon, I think Ruby is the most likely candidate. 9.1 .2. Python If ever you are looking for a test case for the requirement ... 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 can...

O''''Reilly Network For Information About''''s Book part 40 docx

... 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 stack, ... tedium of having to write the code for storing a weak_ptr to this and subsequently obtain a shared_ptr from that weak_ptr, Boost.Smart_ptr provides a helper class for this task, called enable_shared_from_this....

O''''Reilly Network For Information About''''s Book part 46 docx

... sample file: This is sample eRuby file<br> The current time here is Wed Aug 29 18:54:45 JST 20 01. 1 2 3 There are two eRuby implementations: eruby The original implementation of eRuby. ... available from http://www2a.biglobe.ne.jp/~seki/ruby/erb-1.3.3.tar.gz; The version number may be changed in the future. Unfortunately, the supporting page http://www2a.biglobe.ne.jp/~seki/ruby/ ... to a stable release. Stable releases always have an even minor revision number such as 2. 0 or 3 .2. Therefore, releases with even subversion numbers (1.4, 1.6, 1.8, etc.) are stable releases....

O''''Reilly Network For Information About''''s Book part 49 docx

... fulfilled for any class to work with Enabling Classes for Use with lexical_cast Because lexical_cast only requires that operator<< and operator>> be suitably defined for the types ... rewarding. When to use lexical_cast:  For conversions from string types to numeric types  For conversions from numeric types to string types  For all lexical conversions that are supported ... s=boost::lexical_cast<std::string>(f); // literal to double double d=boost::lexical_cast<double>(" ;2. 52& quot;); // Failed conversion s="Not an int"; try { i=boost::lexical_cast<int>(s);...

O''''Reilly Network For Information About''''s Book part 55 docx

... manually, it's easy to forget one of the overloads for taking one const simple_string& and one const char*. When using the Operators library, you can't forget, because the library ... boost::addable<simple_string, boost::addable2<simple_string,const char*> > { This is all that's needed for supporting the full set of operators that we aimed for! As you can see, we used a ... operator class: addable2. If you're using a compiler that supports partial template specialization, you don't have to qualify the name; use addable instead of addable2. There are also...

O''''Reilly Network For Information About''''s Book part 57 docx

... together to form new concepts. The Things That Remain We haven't yet spoken about the remaining part of the Operators library, the iterator helpers. I won't show example code for those, ... between types, or for numeric types, this is always the case, but for other template <typename T> struct selector { template <typename U> struct type { typedef less_than _2& lt;U,T> ... U=dummy> class less_than {}; We need some mechanism for selecting the correct version of less_than (less_than1 or less_than2); we can do this without partial template specialization by using an auxiliary...

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