cassandra the definitive guide second edition

... Trang 2The Definitive Guide Trang 3The Definitive Guide to Grails, Second EditionCopyright © 2009 by Graeme Rocher, Jeff Brown All rights ... Unlike the first edition, coverage of Groovy is saved for the appendix If you have no experience using Groovy, then it is recom-mended that you read the appendix first as the chapters themselves ... relieves the developer of the responsibility of obtaining a reference to the data source But don’t get too wrapped up in these concepts for the moment, as their usage will become clear later in the

Ngày tải lên: 13/08/2014, 08:21

... Here the validator again uses the getUser() method of the LoginCommand to compare the password of the actual User instance with the value of the password property held by the LoginCommand If the ... tags besides the fact that they are provided by these libraries Fundamentally, they can be used the same way as any other tag For example, you can use the <g:link> tag like the built-in ... you’ll notice that the code attempts to persist the User by calling the save() method If the attempt is successful, the User is redirected back to the StoreController: Testing the Registration

Ngày tải lên: 13/08/2014, 08:21

... If the currently logged in user has purchased any songs, then the value of the parameter will be the number of songs they have purchased; otherwise, the value of the ■ Note Note the use of the ... values from the messages files in the grails-app/ i18n/ directory For the simplest case, only the code attribute must be specified when calling the message tag The code attribute tells the message ... the previous code The Elvis operator is a shorthand version of Java ternary operator where the return value for the true condition is the same as the expression being evaluated For example, the

Ngày tải lên: 13/08/2014, 08:21

... using the name of an association as a method call within the criteria, the code first queries the user property of the AlbumPayment class Taking it even further, the code then queries the purchasedAlbums ... of them use the all-too-familiar names success and error, whereas the other is an Exception event handler The error and Exception handlers simply move the flow to the enterCardDetails state The ... triggered, the transition action will halt the transition to the loadRecommendations state, returning the user to the enterShipping state The view will then render any errors that occurred so the user

Ngày tải lên: 13/08/2014, 08:21

... access to the database for the same object However, Hibernate also has a number of other caches including the second-level cache and the query cache In the next section, we’ll explain what the second-level ... injected for the purpose of testing the controller The convention used for the name of the property is basically the property name represen-tation of the class name In other words, it is the class ... Although the first-level cache stores actual persistent instances for the scope of the Session, the second-level cache exists for the whole time that the SessionFac-tory exists Remember, the SessionFactory

Ngày tải lên: 13/08/2014, 08:21

... need to show only the first five posts; therefore, you can use the max parameter to the static list method of the Post class to specify that Listing 13-43 shows the full code for the PostController ... belongs to; otherwise, Grails will attempt to resolve the template within the application it is installed into Second, take note of the usage of the grailsApplication variable to specify the blog ... the decision to allow customization via a parameter? The idea here is that the user of the plugin can very easily customize the layout of the blog through URL mappings For example, consider the

Ngày tải lên: 13/08/2014, 08:21

... handle other types beyond the preconfigured ones, you need to add a new entry into the grails.mime.types map where the key is the file extension of the format typically used and the value is the ... errors, then you can simply send the Album back to the caller of the REST API with the changes However, if there are validation errors, you can send an error response using the errors property of the ... and go the URI /album, Grails will detect the HTTP GET request and map to the show action of the AlbumController If you then created an HTML form that used the HTTP POST method to submit, the update

Ngày tải lên: 13/08/2014, 08:21

... from the code in Listing 16-32, the subscribe action reuses the _subscribe.gsp template to render an Ajax response to the client The logic in the SubscriptionTagLib deals with the rest To add the ... possible in any other dynamic lan-guage on the JVM The remainder of the code simply obtains a FileChannel instance and then calls the transferTo method to transfer the file to the response OutputStream ... and the columns it uses to create the join To do so, you need to use the joinTable argument on the one side of the association Listing 17-5 shows an example of using the joinTable argument on the

Ngày tải lên: 13/08/2014, 08:21

... (excuse the pun) built-in, including but not ited to the following: lim-• The MarkupBuilder for constructing, typically XML, markup • The DOMBuilder for constructing W3C DOM trees • The AntBuilder ... “anonymous” closure to the authors() method of the MarkupBuilder instance, but consider the possibility of assigning this closure to a variable and then passing as an argument the same closure to ... XML and another that outputs the same data as a PDF document or renders it in a GUI Unlike the XML produced in Listing A-24, the builder code in Listing A-23 is pure Groovy code and can therefore

Ngày tải lên: 13/08/2014, 08:21

... Trang 2The CISSP ® Prep Guide, Second Edition: Mastering the CISSP and Ronald L Krutz and Russell Dean Vines Trang 4The CISSP ® Prep Guide, Second Edition: Mastering the CISSP and ... procedures to preserve the confidentiality of the information, maintain the integrity of the data, ensure the availability of the information systems, and to enforce the accountability of the users and ... know the basic steps of the system security life cycle The order of these phases is*: 1 Initiation phase During the initiation phase, the need for a system is expressed and the purpose of the

Ngày tải lên: 14/08/2014, 12:20

... the data passes downward through each layer from the highest layer (the Application Layer 7 in the OSI model) to the lowest layer (the Physical Layer 1 of the OSI model) of the source It is then ... layer At the bottom of the TCP/IP model, the network access layer monitors the data exchange between the host and the network The equivalent of the Data-Link and Physical Layers of the OSI model, ... to remember are: ✦ Attenuation — The loss of signal strength as the data travel through the cable The higher the frequency and the longer the cable, the greater the risk of attenuation ✦ Crosstalk

Ngày tải lên: 14/08/2014, 12:20

... messaging, the user logs on to the instant messaging server with the user’s ID and password The server authenticates the user Then, the client sends to the server the user’s IP address and the port ... hide their presence from both the OS and the antivirus software by: ✦ Hiding the change in the file’s date and time ✦ Hiding the increase in the infected file’s size ✦ Encrypting themselves They ... time the infected application is run, the logic bomb checks the date to see whether it is time to run the bomb If not, control is passed back to the main application and the logic bomb waits If the

Ngày tải lên: 14/08/2014, 12:20

... to support the guarantees of the quality levels of the per­sonnel performing the computer operations These are also explained in the Physical Security domain Elements of these include the following: ... discretionary access control because the entries in the matrix are at the discretion of the ual(s) who have the authorization authority over the table In the access control individ-matrix, a ... to the system A request is made while the system is in the state v1; a decision (d) is made upon the request, and the system changes to the state v2 (R, d, v1, v2) represents this tuple in the

Ngày tải lên: 14/08/2014, 12:20

... happen during the test, including the following: ✦ The testing schedule and timing ✦ The duration of the test ✦ The specific test steps ✦ Who will be the participants in the test ✦ The task assignments ... role of the recovery team during the disaster? a The recovery team must be the same as the salvage team as they per­ form the same function b The recovery team is often separate from the salvage ... executing the plan performed Mistakes will be made, and this is the time to make them Document the problems encountered during the test and update the plan as needed, then test again The Five

Ngày tải lên: 14/08/2014, 12:20

... ensure that the system will meet the users’ focuses on the effectiveness of the information protection — whether the system can provide to the required quality standard in the authentication ... of the SE/ISSE process to the C&A process In summary, the outputs of the SE/ISSE process are the implementation of the sys­ tem and the corresponding system documentation The outputs of the ... CONOPS, the system context, and the system requirements In close cooperation with the customer and based on the IPP, the information systems security engineer selects the best solution among the

Ngày tải lên: 14/08/2014, 12:20

... After the generation of the SOW and the identification of the organizational struc­ ture, one of the initial steps in program planning is the development of the Work Breakdown Structure (WBS) The ... ways, depending upon the orga-nization’s goals The Learning Phase The learning phase is both the final stage of the initial process improvement cycle and the initial phase of the next process improvement ... evaluating the effi­ ciency of the effort and determining where further enhancements to the process are required These lessons learned are then collected, summarized, and documented Based on the analysis

Ngày tải lên: 14/08/2014, 12:20

... rooted in developments of the early to mid-1990s. The alphabet soup of the first edition was gruel compared to the mulligatawny of 2005. Matthew filled the gap between the book and contemporary ... introduces the acronyms used throughout the book. With 802.11, the introduction serves another important purpose. 802.11 is superficially similar to Ethernet. Understanding the background of Ethernet ... transmission. (Among many, many other items, you have him to thank for the footnote on the gain of the Aricebo radio telescope!) As with so much in life, the devil of writing is in the details. Getting it...

Ngày tải lên: 05/05/2014, 12:46

... only some of the records, with their order preserved? Then, when clients execute queries, they put load only on the machine that has the record they’re looking for, with no load on the other machines. It ... position to really make people listen to their innovations. They had the problems, and they had the brain power to solve them. As we enter the second decade of the 21st century, we’re starting to ... 23 www.it-ebooks.info CHAPTER 1 Introducing Cassandra If at first the idea is not absurd, then there is no hope for it. —Albert Einstein Welcome to Cassandra: The Definitive Guide. The aim of this book is to...

Ngày tải lên: 21/02/2014, 19:20

... that, starting with the IP number, Apache finds the hostname of the client by consulting the DNS system on the Internet. The hostname is then used in the logs. If switched off, the IP address is ... talk to each other over networks. The two protocols that give the suite its name are among the most important, but there are many others, and we shall meet some of them later. These protocols ... required by the protocol, by convention there is a dividing line somewhere inside this number: to the left is the network number and to the right, the host number. Two machines on the same physical...

Ngày tải lên: 25/03/2014, 10:39

... reset the form or send its contents to the server. Users fill out the form at their leisure, perhaps after reading the rest of the document, and click a special send button that makes the browser send ... Header The document header describes the various properties of the document, including its title, position within the Web, and relationship with other documents. Most of the data contained within the ... to the user. 3.7.1 The <head> Tag The <head> tag serves to encapsulate other header tags. Place it at the beginning of your document, just after the <html> tag and before the...

Ngày tải lên: 25/03/2014, 10:43