hadoop the definitive guide pdf 3rd edition

... validation fails; otherwise it should return true The first argument passed to the closure is the value of the property to be validated The second argument passed to the closure is the object being ... Album The value of the hasMany property needs to be a Map The keys in the map represent the names of collection properties that will be added to the domain class, and the values associ-ated with the ... 3-6. Constraining the Password Property in the User Domain Class The validator in Listing 3-6 will fail if the password is equal to the firstName property of the User class The validator closure

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

... name. The other is to use the table name in the WHERE clause of the SELECT statement. The following script will list all the triggers defined on a table: DESCRIPTION This script lists the definition ... after the other, instead of the more usual horizontal format. The result makes for a very readable display of the trigger definition. DESCRIPTION This script lists the definition of the specified ... have access The only time the ALL_SYNONYMS view would show you all the synonyms in the database would be if you happened to have access to all the objects in the database. Running the LIST_SYN.SQL

Ngày tải lên: 05/07/2014, 04:20

... found in the DBS directory, underneath the Oracle home directory On Windows NT, the full path and filename for the script is: C: \ORANT\DBS\POPBLD SQL On Unix systems, the script will be in the SQL*Plus ... SQL> Do not be alarmed by the error messages They are nothing to worry about and are simply the result of the way Oracle wrote the script If you now were to run the script again, you would ... using the wildcard characters that are used with the LIKE predicate, the percent sign and the underscore A value of % would make the restriction apply to all users. COMMAND_NAME This is the name

Ngày tải lên: 05/07/2014, 04:20

... SQL*Plus normally signals the end of the statement The statement is then placed into the buffer, and you then have the option of making further edits or of executing the statement Turning SQLBLANKLINES ... ON These commands will set your prompt to the global database name The global name comes from the global_name view, and may or may not be the same as the connect string you used to connect to the ... lowercase x in the WHERE clause does not match the uppercase X in the dummy column Case conversion occurs when the statement is transmitted to the database server The contents of the buffer will

Ngày tải lên: 05/07/2014, 04:20

... script_file Is the name of the file you want to execute, and may include the path and the extension The default extension is SQL The default path is the one pointing to the directory where the calling ... that calls the other Use the @@ command in the first script file to call the second Then put both files in the same directory Now, regardless of whether or not that directory is in the search path, ... comment_text */ where: /* Marks the beginning of the comment comment_text Is the text making up the comment */ Marks the end of the comment Trang 3Double Hyphen (- -)The double hyphen may be used

Ngày tải lên: 05/07/2014, 04:20

... Is the name of the file you want to execute, and may include the path and the extension. The default extension is SQL. If you do not specify a path, SQL*Plus will look for the file first in the ... Causes the database to be mounted, but not opened. The instance will be started. The control file will be opened, but none of the other database files will be opened. The MOUNT stage is the one ... the title is displayed. format_spec Is a string that specifies the display format to use for subsequent numeric data in the title. The format elements you can use here are the same as for the

Ngày tải lên: 05/07/2014, 04:20

... 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

... 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 ... purchase, then we show some of the other... are, there is a problem with the code in the flow prior to the showConfirmation view state As for the rest of the code in Listing 9-4 6, ... partnership with the transition action to ensure that the Address is val- idated before the user continues to the next part of the flow. You can see the transition action’s code in the following

Ngày tải lên: 13/08/2014, 08:21

... 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 ... already exist in the Session, and then merges the state of the passed instance into the loaded persistent one Once this is done, the merge method then returns a new instance containing the merged state ... over time This breaks the contract defined by the hashCode method, which states that the hashCode implementation must return the same integer for the lifetime of the object The recom-recommended

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 ... 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 ... adding the following set-ting to Config.groovy will do the trick: // configuration for the blog blog.title="The gTunes Weblog" Run the gTunes application using the run-app command, and then

Ngày tải lên: 13/08/2014, 08:21

... 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. ... see 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. ... specify the column to store the identifier of the one side, which in this case is the id property of the Artist Conversely, the column argument is used to specify the. .. artist

Ngày tải lên: 13/08/2014, 08:21

... 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 ... “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 ... (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

Ngày tải lên: 13/08/2014, 08:21

... HTML The Definitive Guide  10 Chapter 1: HTML and the World Wide Web HTML: The Definitive Guide, Third Edition, eMatter Edition Copyright â 2000 OReilly ... in the image, the graphical browser sends the relative x,y coordinates of the mouse posi- tion to the server that is also designated in the anchor. A special server program then translates the ... work. This book, therefore, is the definitive guide to HTML. We give details for all the elements of the HTML 4.0 standard, plus the variety of interesting and useful extensions to the language—some...

Ngày tải lên: 16/01/2014, 16:33

... }' done The script loops through the compressed year files, first printing the year, and then processing each file using awk. The awk script extracts two fields from the data: the air temperature ... a missing value in the NCDC dataset) and whether the quality code indicates that the reading is not suspect or erroneous. If the reading is OK, the value is compared with the maximum value seen ... http://www.hadoopbook.com/. You will also find instructions there for obtaining the datasets that are used in examples throughout the book, as well as further notes for running the programs in the book,...

Ngày tải lên: 12/02/2014, 12:20

... define the payload of the stanza. The payload might be presented to a user or processed in some automated fashion as determined by the specification that defines the namespace of the payload. The ... members of the developer community decided to seek a wider review of the core protocols by formal- izing them within the IETF, which has standardized most of the core technologies for the Internet ... need. Use these appendixes as reference material on an ongoing basis, or as a quick index to the myriad of XMPP resources available on the Internet. xiv | Preface XMPP: The Definitive Guide CHAPTER...

Ngày tải lên: 16/02/2014, 15:20

... Documentation lowers the barrier to entry and helps people contemplate the possibilities. Produced with the generous support of O’Reilly Media, Asterisk: The Definitive Guide is the third edition of what ... of their technology, including telecom. In his book Crossing the Chasm (HarperBusiness), Geoffrey Moore opines, The idea that the value of the system will be discovered rather than known at the ... 540 Table of Contents | xv CHAPTER 1 A Telephony Revolution First they ignore you, then they laugh at you, then they fight you, then you win. —Mahatma Gandhi When we first set out—nearly five years...

Ngày tải lên: 17/02/2014, 01:20

... 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 ... Whatever the name of the module, the LoadModule directive requires the exact filename. 2.6.2.1 LoadFile The LoadFile directive links in the named object files or libraries when the server ... 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