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310-019 Sun Certified Associate for the Java Platform

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310-019 exam Dumps Source : Sun Certified Associate for the Java Platform

Test Code : 310-019
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Vendor appellation : SUN
: 242 actual Questions

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SUN SUN Sun Certified Associate

Wi-solar Launches FAN Certification application For huge outdoor IoT Networks | killexams.com actual Questions and Pass4sure dumps

The Wi-solar Alliance, a global ecosystem of member groups in the hunt for to accelerate the implementation of open specifications-primarily based territory enviornment Networks (FAN) and the web of things (IoT), currently announced its FAN Certification application. FAN is a communications infrastructure for very enormous-scale networks that works by using letting contraptions interconnect onto one average community.

the supply of the FAN Certification software is the influence of the collaboration of a number of Wi-solar Member agencies. during the certification application, the Wi-solar Alliance certifies products in response to their compliance to a communications profile derived from applicable open standards and their means to interoperate with other Wi-sun certified products.

The FAN Certification software will certify gadgets for spend by way of utilities, city developers and other carrier suppliers to simplify and aid large-scale, outdoor networks for smart cities, wise utilities and other IoT rollouts – and to aid reduce fees and delays. Wi-sun individuals plot to advertise certified items in this tumble 2018.

Wi-sun says that it believes proprietary techniques no longer to be sufficiently flexible, or as cost-effective as solutions in accordance with open necessities, and that they're going to become less relevant within a pair of years. Adhering to the Wi-sun FAN profile according to open IEEE and IETF requirements makes it feasible for provider suppliers, smart cities and utilities to deploy adaptable multi-provider networks and may aid gain sure interoperability, now not only today, however besides for many years to come.

“Wi-sun continues to be at the forefront of IoT innovation, and as cities, utilities and the industry grows their IoT networks, they're more and more recognizing that trade-vast open requirements are simple for interoperability and scalability,” talked about Phil Beecher, President and CEO, Wi-sun Alliance. “FAN Certification is an endorsement for governments and the industry that their members' products are compliant to these open standards, and safeguards high-quality, interoperability, security, scalability – and in the finish offers purchasers a competitive expertise.”

All Wi-solar certified products are tested by means of a certified Wi-sun appointed third-birthday party sight at various lab to be sure the instruments work collectively effectively and securely for speedy time to market. certified devices consist of a digital certificate to authenticate entry to a Wi-solar FAN community, tremendously cutting back vulnerability to cyber safety threats. below a separate contract, Wi-sun has chosen GlobalSign to give certificate Authority (CA) functions to Wi-solar Alliance member groups.

“We proceed to peer Wi-solar expertise as a major enabler for giant-scale IoT purposes during Hawaii with the provision of its FAN Certification program,” said Colton Ching, SVP, Planning & expertise, Hawaiian electric powered. “The Wi-solar Alliance and its members beget taken an colossal step ahead in bringing multi-vendor, interoperable solutions to fruition.”

the following are among probably the most corporations who beget been actively leading a way to certification: Analog gadgets, Cisco, EPRI, Itron, Kyoto college/Nissin programs, Landis+Gyr, ProCubed, Renesas and ROHM Europe.

Ken Briodagh is a author and editor with greater than a decade of journey under his belt. he's in fondness with technology and if he had his druthers would beta sight at various every thing from shoe telephones to flying vehicles.

Edited by Ken Briodagh


Landis+Gyr Helps Lead Wi-sun Alliance's FAN Certification software for mountainous Scale IoT communique Networks | killexams.com actual Questions and Pass4sure dumps

No outcome found, are trying current keyword!ATLANTA, Oct. 1, 2018 /PRNewswire/ -- Landis+Gyr (SWISS: LAND.SW) announced its wait on for the Wi-sun FAN Certification software launched by using the Wi-solar Alliance earlier today. As a Promoter Member of ...

Itron helps the Wi-solar Alliance’s FAN Certification software for colossal-scale outside Industrial IoT Networks | killexams.com actual Questions and Pass4sure dumps

LIBERTY LAKE, Wash.--(enterprise WIRE)--

Availability of Wi-sun’s FAN 1.0 Certification software Marks Milestone for Itron and the business

Itron, Inc. (ITRI), which is innovating the manner utilities and cities control power and water and a member of the Wi-sun Alliance, has introduced its assist for the Wi-solar container enviornment community (FAN) Certification program launched nowadays. The Wi-solar (instant sensible Ubiquitous Networks) Alliance is a world ecosystem of member agencies in the hunt for to speed up the implementation of open requirements-based mostly FAN and the cyber web of issues (IoT). A FAN is a communications infrastructure for very-enormous scale networks. In the identical manner the internet is obtainable to various makes and models of smartphones and computer systems, the Wi-sun FAN commonplace allows different industrial gadgets to interconnect onto ordinary, relaxed, industrial-grade networks.

in the course of the FAN Certification program, the Wi-sun Alliance certifies products in response to their compliance to a communications profile derived from relevant open specifications and their capacity to interoperate with different Wi-sun licensed products. Itron will spend the Wi-solar FAN ordinary as a foundation for its community platforms.

“As a Promoter Member of the Wi-sun Alliance and an colossal contributor to the FAN certification program, Itron is completely glad to be among the many first to publish their product through the certification process,” spoke of Sharelynn Moore, senior vice president of networked options at Itron. “Itron’s lengthy-standing dedication to the construction and evolution of this commonplace technology addresses their clients’ calls for for an interoperable community ecosystem. With Wi-sun FAN average because the foundation of their network, Itron will proceed to carry one of the vital maximum performing, most cozy and resilient networks in the industry.”

“Certification ensures interoperability, which is key to the growth of IoT innovation,” pointed out Phil Beecher, president and CEO of the Wi-solar Alliance. “we're completely glad to officially launch the FAN Certification program and are excited for the first wave of FAN certified products to be deployed into the market starting Q1 2019.”

About Itron

Itron permits utilities and cities to safely, securely and reliably deliver vital infrastructure capabilities to communities in more than one hundred nations. Their portfolio of smart networks, software, services, meters and sensors helps their purchasers more desirable manage electricity, gas and water resources for the americans they serve. by working with their consumers to ensure their success, they aid better the first-rate of lifestyles, gain sure the protection and promote the well-being of thousands and thousands of americans everywhere. Itron is dedicated to making a more imaginitive world. be a portion of us: www.itron.com.

Itron® is a registered trademark of Itron, Inc. replete third-birthday celebration logos are property of their respective owners and any utilization herein doesn't suggest or betoken any relationship between Itron and the third birthday celebration except expressly cited.

concerning the Wi-sun Alliance

The Wi-sun Alliance is a global non-profit member-primarily based association made from trade main organizations. Its mission is to power the international proliferation of interoperable instant options to be used in sensible cities, sensible grids and other cyber web of issues (IoT) functions using open world requirements from businesses, similar to IEEE802, IETF, TIA, TTC and ETSI. With greater than a hundred and eighty contributors international, membership of the Wi-sun Alliance is open to replete industry stakeholders and includes silicon vendors, product providers, features providers, utilities, universities, companies and municipalities and aboriginal executive companies.

For greater counsel, please discuss with: www.wi-sun.org.

Wi-solar Alliance and the Wi-solar Alliance emblem are trademarks of the Wi-sun Alliance.

View source version on businesswire.com: https://www.businesswire.com/information/domestic/20181001005556/en/


310-019 Sun Certified Associate for the Java Platform

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310-019 exam Dumps Source : Sun Certified Associate for the Java Platform

Test Code : 310-019
Test appellation : Sun Certified Associate for the Java Platform
Vendor appellation : SUN
: 242 actual Questions

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Sun Certified Associate for the Java Platform

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Using Java DB in Desktop Applications | killexams.com actual questions and Pass4sure dumps

Articles Index

Sun Microsystems recently announced that it is distributing and supporting Java DB based on the 100 percent Java technology, open-source Apache Derby database. Derby was previously available under its earlier name, Cloudscape, from its former owners: Cloudscape, Informix, and IBM. IBM donated the Derby product source code to the Apache Foundation as an open-source project. Sun, IBM, other companies, and individuals beget been actively involved in evolution of the relational database as portion of the Apache Derby community. Sun distributes Java DB in many of its products, including the Sun Java Enterprise System and the Sun Java System Application Server. The NetBeans integrated evolution environment (IDE) 5.0 besides supports Java DB.

Java DB is lightweight at 2 megabytes and embeddable within desktop Java technology applications. Desktop applications can now access powerful database storage with triggers, stored procedures, and support for SQL, Java DataBase Connectivity (JDBC) software, and Java Platform, Enterprise Edition (Java EE, formerly referred to as J2EE), replete embedded within the same Java virtual machine (JVM). *

This article describes how to download, install, integrate, and deploy Java DB within desktop Java technology applications. A demo application called Address engage demonstrates how to work with Java DB as an embedded database.

Contents

   Creating the Address engage Demo

The Address engage demo uses Java DB to store address information. This demo stores names, phone numbers, email addresses, and postal addresses. It allows you to create current address entries and to save, edit, and delete them. The application creates its database in the user's home directory within an .addressbook subdirectory. The database is embedded with the application, so there is no requisite to set up or manage a separate server or system. To deploy this embedded database application, they requisite only the application JAR file and the database library JAR file. motif 1 shows the demo's user interface (UI).

Figure 1: Address engage uses Java DB as an embedded database.

Address Book's main frame window is an AddressFrame class that extends a Java Foundation Classes/Swing (JFC/Swing) JFrame. The AddressFrame is a container for other graphical components and besides acts as a controller by handling various events generated by the child components. The child components are JPanel subclasses, each with a different responsibility:

  • AddressPanel represents an address record. It besides provides the UI for editing existing records and creating current records. It contains text fields for replete the major properties of an Address object.
  • AddressActionPanel provides buttons for replete the major spend cases that the application supports. This panel generates events that AddressFrame must handle. For example, when the user clicks Save, this panel generates an event. AddressFrame listens to and handles replete valuable events from this panel.
  • AddressListPanel provides a scrollable list of names on the far left of the AddressFrame. The list holds ListEntry objects. A ListEntry stores a database record's unique identifier. The record identifier (ID) allows the application to retrieve an entire record's contents into the AddressPanel.
  • The application uses a Data Access remonstrate (DAO) to isolate the database-specific code. The DAO encapsulates database connections and statements. A DAO is a useful design pattern that allows loose coupling between an application and the underlying persistence-storage mechanism. The application's AddressDao class is an example of a DAO. When the AddressFrame edits, saves, or deletes an Address object, it always uses an instance of the AddressDao class. Although the Address engage application uses Java DB, you could change it to spend an entirely different database just by modifying this one class.

    The easiest way to come by Java DB is to download a copy from the Sun Developer Network's Java DB site. The binary distribution provides everything you requisite to open working with embedded database applications. After you download the binary distribution, you'll find a Java DB directory structure that contains the following subdirectories:

  • The demo subdirectory has two demonstration programs. One example shows how to create a trivial embedded application. The other shows how to spend Java DB in a client-server environment.
  • The frameworks subdirectory contains utilities for setting up environment variables and for creating and working with databases. This directory is not useful for their demo because their application will be entirely self-contained. No outside utilities will be used for the Address engage application.
  • The javadoc subdirectory contains API documentation. This directory is particularly useful if you configure your IDE to point to it as the Java DB API Javadoc.
  • The docs subdirectory contains documentation about the Java DB product itself: setup, administrator, and reference guides.
  • Finally, the lib subdirectory contains the Java DB libraries packaged as JAR files. Read the Java DB documentation to find out about the various libraries. For an embedded database application, they will spend only the derby.jar library file.
  • Installing Java DB for evolution requires only that you gain the derby.jar file portion of your application classpath. It's that simple. You can set the CLASSPATH variable of your Solaris, Linux, Windows, or other host environment to comprise the JAR file, or you can comprise the file as portion of your command-line options when compiling or running. The Address engage demo's ANT script shows you how to comprise this JAR file during project evolution if you spend ANT. Alternatively, some IDEs, including NetBeans IDE 5.0, let you configure classpaths.

    Integrating Java DB With NetBeans IDE 5.0

    Most IDEs provide a way to add libraries to the evolution classpath. ensue these instructions to add the Java DB libraries to NetBeans IDE 5.0:

  • From the Tools menu, select Library Manager, as shown in motif 2.

    Figure 2: The library manager lets you add third-party libraries to your project.

  • In the Library Manager window, create a current library named JavaDBEmbedded, as shown in motif 3. Click OK.

    Figure 3: appellation the set of libraries that your project will need.

  • To add the derby.jar file to the JavaDBEmbedded library, click on Add JAR/Folder... in the Library Manager window. Navigate the file chooser to the derby.jar file and select it as shown in motif 4.

    Figure 4: Add the derby.jar file to the JavaDBEmbedded library.

  • In the same Library Manager window for the JavaDBEmbedded library, select the Javadoc tab. Add the javadoc subdirectory from your Java DB installation. Now, the Java DB API Javadoc is available when you spend the JavaDBEmbedded library in your NetBeans IDE projects.
  • You can now add the JavaDBEmbedded library to your NetBeans IDE 5.0 project by using the project's property settings. When you compile, debug, and elope the application within the IDE, the IDE will be able to find the needed derby.jar file.

    To accommodate users of other IDEs, I beget placed the derby.jar library within the lib subdirectory of the downloadable Address engage project. The accompanying ANT script can build and elope the demo without any dependencies on the NetBeans IDE.

    Loading the Database Driver

    Loading the JDBC technology driver starts the database management system. Java DB's drivers near with the derby.jar file, so you don't requisite to download anything else. Load the JDBC driver by referencing it using the Class.forName method. The embedded driver appellation is org.apache.derby.jdbc.EmbeddedDriver, and you can load it as you would other JDBC drivers.

    Class.forName("org.apache.derby.jdbc.EmbeddedDriver");  

    The Address engage demo reads the driver appellation from a configuration property file and passes the appellation to a loadDriver method. Additionally, as mentioned earlier, Address engage encapsulates replete database functionality into a Data Access remonstrate (DAO), a core Java EE design pattern used to access data from a variety of sources. The DAO pattern works equally well for Java SE applications like Address Book. The following code snippet shows how AddressDao reads the driver appellation and loads the driver:

    private Properties bProperties = null; public AddressDao(String addressBookName) { this.dbName = addressBookName; setDBSystemDir(); dbProperties = loadDBProperties(); String driverName = dbProperties.getProperty("derby.driver"); loadDatabaseDriver(driverName); ... } private Properties loadDBProperties() { InputStream dbPropInputStream = null; dbPropInputStream = AddressDao.class.getResourceAsStream("Configuration.properties"); dbProperties = current Properties(); try { dbProperties.load(dbPropInputStream); } snare (IOException ex) { ex.printStackTrace(); } revert dbProperties; } private void loadDatabaseDriver(String driverName) { // Load the Java DB driver. try { Class.forName(driverName); } snare (ClassNotFoundException ex) { ex.printStackTrace(); } }   Connecting to the Java DB Database

    A JDBC technology connection identifies a specific database and allows you to achieve administrative tasks. Tasks comprise starting, stopping, copying, and even deleting a database. The driver manager provides replete database connections.

    Retrieve a connection from the driver manager by providing a URL string that identifies the database and a set of properties that influence the connection's interaction with the database. A very common spend of properties is to associate a user appellation and password with a connection.

    All connection URLs beget the following form:

    jdbc:derby:<dbName>[propertyList]  

    The dbName portion of the URL identifies a specific database. A database can be in one of many locations: in the current working directory, on the classpath, in a JAR file, in a specific Java DB database home directory, or in an absolute location on your file system. The easiest way to manage your database location in an embedded environment is to set the derby.system.home system property. This property tells Java DB the default home location of replete databases. By setting this property, the Address engage demo ensures that Java DB always finds the redress application database. The application database is named DefaultAddressBook, and it will exist within the directory indicated by the derby.system.home property. The connection URL for this database would sight like this:

    jdbc:derby:DefaultAddressBook  

    The optional propertyList is a set of properties that you can pass to the database system. You can pass properties into the Java DB system either on the URL itself or as a separate Properties object. If properties are portion of the URL, a semicolon ( ;) should precede each property. The most common properties are these:

  • create=true
  • databaseName=nameOfDatabase
  • user=userName
  • password=userPassword
  • shutdown=true
  • To connect to the DefaultAddressBook database, the demo must first set the derby.system.home system property. The demo uses the .addressbook subdirectory of the user's home directory. spend the System class to find out the user's home directory. Then spend the class again to set the derby.system.home property:

    private void setDBSystemDir() { // resolve on the db system directory: <userhome>/.addressbook/ String userHomeDir = System.getProperty("user.home", "."); String systemDir = userHomeDir + "/.addressbook"; // Set the db system directory. System.setProperty("derby.system.home", systemDir); }  

    Once the application has specified where replete databases will exist, it can retrieve a database connection. In this example, notice that I beget appended connection properties to the database URL.

    Connection dbConnection = null; String strUrl = "jdbc:derby:DefaultAddressBook;user=dbuser;password=dbuserpwd"; try { dbConnection = DriverManager.getConnection(strUrl); } snare (SQLException sqle) { sqle.printStackTrace(); }  

    Alternatively, you can set those properties into a Properties object. Pass the Properties remonstrate as an dispute when retrieving a connection:

    Connection dbConnection = null; String strUrl = "jdbc:derby:DefaultAddressBook"; Properties props = current Properties(); props.put("user", "dbuser"); props.put("password", "dbuserpwd"); try { dbConnection = DriverManager.getConnection(strUrl, props); } catch(SQLException sqle) { sqle.printStackTrace(); }  

    The Address engage demo application does not beget a ready-made database. Instead, the application must create the database when it starts. One of the biggest advantages of using an embedded database is that the application -- not the user -- takes custody of the details of setting up a database. The application can control where the database exists, what tables exist, and how permissions are handled.

    Address engage creates a database called DefaultAddressBook in a subdirectory of the user's home directory, and it does so without asking the user for any additional information. You can create a current database in Java DB by using the create=true property when retrieving a connection to a database. Because their application will spend the DefaultAddressBook database, they should first create this database. Assuming that the application has already set the derby.system.home property as discussed earlier, the application creates the database and connects to it like this:

    Connection dbConnection = null; String strUrl = "jdbc:derby:DefaultAddressBook;create=true"; try { dbConnection = DriverManager.getConnection(strUrl); } snare (SQLException ex) { ex.printStackTrace(); }  

    Because the create=true property is included, Java DB will attempt to create the database files for the first time. Creating the database doesn't actually create any application tables. However, you should now be able to find a current subdirectory named .addressbook/DefaultAddressBook in your home directory.

    After it has created the database, the application creates the tables. The demo uses only one ADDRESS table in the default application APP schema. The following SQL code creates the ADDRESS table:

    CREATE table APP.ADDRESS ( ID INTEGER NOT NULL PRIMARY KEY GENERATED ALWAYS AS IDENTITY (START WITH 1, INCREMENT BY 1), LASTNAME VARCHAR(30), FIRSTNAME VARCHAR(30), MIDDLENAME VARCHAR(30), PHONE VARCHAR(20), EMAIL VARCHAR(30), ADDRESS1 VARCHAR(30), ADDRESS2 VARCHAR(30), CITY VARCHAR(30), STATE VARCHAR(30), POSTALCODE VARCHAR(20), COUNTRY VARCHAR(30) )  

    Each record has a record identifier or ID field. Java DB generates this value for each current record that it adds to the database. The ID territory is the primary key for each address record.

    All remaining address record fields accommodate varchar elements of various lengths. For example, the LASTNAME territory can accommodate a maximum of 30 varchar characters. The varchar type is equivalent to a UTF-16 Java char code unit.

    The Java technology code that uses the above SQL statement to create the ADDRESS table looks like the following code. The dbConnection is the same as the one shown in the previous code. They simply pass it into createTables, create a current Statement, and muster the execute mode to elope the SQL code on the newly formed database. The strCreateAddressTable instance variable holds the SQL statement text.

    private boolean createTables(Connection dbConnection) { boolean bCreatedTables = false; Statement statement = null; try { statement = dbConnection.createStatement(); statement.execute(strCreateAddressTable); bCreatedTables = true; } snare (SQLException ex) { ex.printStackTrace(); } revert bCreatedTables; }  

    At this point, the database and the ADDRESS table exist in a subdirectory named .addressbook/DefaultAddressBook in your home directory. Although you can browse this subdirectory, avoid modifying any files. If you edit or delete any of these database files directly, you can demolish the integrity of your database.

    Once the database and its tables beget been created, your application can create current connections and statements to add, edit, delete, or retrieve records. In Address Book, these actions are controlled by buttons within the AddressActionPanel. motif 5 shows the available options:

  • New. Create a current address record.
  • Delete. Delete the displayed address record.
  • Edit. Edit the displayed address record.
  • Save. deliver the current or edited address record that is displayed.
  • Cancel. Cancel any edits or any attempt to create a current record.
  • Figure 5: Address engage has several options for interacting with records.

    The main window of the application is AddressFrame, which acts as a controller and as a view at the same time. It registers itself with the AddressActionPanel to receive notification when a user clicks anywhere on the action bar.

    The current command clears the address entry panel and enables the user to edit replete fields. No SQL commands are issued at this point, but the UI should allow you to enter a current address.

    The Delete command attempts to delete the currently selected address record. AddressFrame retrieves the currently selected Address identifier from the AddressPanel and uses AddressDao to delete the record. The panel calls its own deleteAddress method, which calls the DAO's deleteRecord mode with the redress ID. After deleting the record from the database, the application must delete the ListEntry from the AddressListPanel too.

    private void deleteAddress() { int id = addressPanel.getId(); if (id != -1) { db.deleteRecord(id); int selectedIndex = addressListPanel.deleteSelectedEntry(); ... } ... }  

    In the AddressDao, the deleteRecord mode handles the actual deletion of the record from the database. The AddressDao creates a PreparedStatement when it first connects to the database.

    stmtDeleteAddress = dbConnection.prepareStatement( "DELETE FROM APP.ADDRESS " + "WHERE ID = ?");  

    The PreparedStatement can be used multiple times, and this one uses a parameter to determine which record to delete. The deleteRecord mode executes the update after setting the ID parameter:

    public boolean deleteRecord(int id) { boolean bDeleted = false; try { stmtDeleteAddress.clearParameters(); stmtDeleteAddress.setInt(1, id); stmtDeleteAddress.executeUpdate(); bDeleted = true; } snare (SQLException sqle) { sqle.printStackTrace(); } revert bDeleted; }  

    The Edit command allows the user to edit the currently selected Address record in the AddressPanel. For example, you can change the name, city, or phone number of a saved record.

    The deliver command retrieves either the newly created or edited Address from the AddressPanel and attempts to either update the existing record or create a current record. If the user has been editing a record, deliver will update that record with the current information. If the user has created a current record, deliver will insert a current record in the database. current records beget not yet been saved. At this point, their ID territory is still set to the default -1 value. This value changes to an autogenerated, unique record identifier once you deliver the record.

    The following code in AddressFrame will deliver edited and newly created address records by calling the DAO's editRecord or saveRecord method, respectively. Of course, when you create a current record, the application must besides update the AddressListPanel.

    private void saveAddress() { if (addressPanel.isEditable()) { Address address = addressPanel.getAddress(); int id = address.getId(); if (id == -1) { id = db.saveRecord(address); address.setId(id); String lname = address.getLastName(); String fname = address.getFirstName(); String mname = address.getMiddleName(); ListEntry entry = current ListEntry(lname, fname, mname, id); addressListPanel.addListEntry(entry); } else { db.editRecord(address); } addressPanel.setEditable(false); } }  

    The DAO's editRecord mode must update the fields that change in the Address record. Because the demo application doesn't distinguish between edited and unedited fields, it simply updates replete fields in the record. Following are the PreparedStatement remonstrate and the editRecord method:

    stmtUpdateExistingRecord = dbConnection.prepareStatement( "UPDATE APP.ADDRESS " + "SET LASTNAME = ?, " + " FIRSTNAME = ?, " + " MIDDLENAME = ?, " + " PHONE = ?, " + " EMAIL = ?, " + " ADDRESS1 = ?, " + " ADDRESS2 = ?, " + " CITY = ?, " + " STATE = ?, " + " POSTALCODE = ?, " + " COUNTRY = ? " + "WHERE ID = ?"); ... public boolean editRecord(Address record) { boolean bEdited = false; try { stmtUpdateExistingRecord.clearParameters(); stmtUpdateExistingRecord.setString(1, record.getLastName()); stmtUpdateExistingRecord.setString(2, record.getFirstName()); stmtUpdateExistingRecord.setString(3, record.getMiddleName()); stmtUpdateExistingRecord.setString(4, record.getPhone()); stmtUpdateExistingRecord.setString(5, record.getEmail()); stmtUpdateExistingRecord.setString(6, record.getAddress1()); stmtUpdateExistingRecord.setString(7, record.getAddress2()); stmtUpdateExistingRecord.setString(8, record.getCity()); stmtUpdateExistingRecord.setString(9, record.getState()); stmtUpdateExistingRecord.setString(10, record.getPostalCode()); stmtUpdateExistingRecord.setString(11, record.getCountry()); stmtUpdateExistingRecord.setInt(12, record.getId()); stmtUpdateExistingRecord.executeUpdate(); bEdited = true; } catch(SQLException sqle) { sqle.printStackTrace(); } revert bEdited; }  

    Saving a current Address creates a current database record, and that current record has a current primary key or record identifier. When they create the PreparedStatement, they can command the database that they want to know the generated keys. Notice how they can retrieve a ResultSet of generated keys after inserting the record. The saveRecord mode returns the primary key of the newly created record.

    stmtSaveNewRecord = dbConnection.prepareStatement( "INSERT INTO APP.ADDRESS " + " (LASTNAME, FIRSTNAME, MIDDLENAME, " + " PHONE, EMAIL, ADDRESS1, ADDRESS2, " + " CITY, STATE, POSTALCODE, COUNTRY) " + "VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)", Statement.RETURN_GENERATED_KEYS); ... public int saveRecord(Address record) { int id = -1; try { stmtSaveNewRecord.clearParameters(); stmtSaveNewRecord.setString(1, record.getLastName()); stmtSaveNewRecord.setString(2, record.getFirstName()); stmtSaveNewRecord.setString(3, record.getMiddleName()); stmtSaveNewRecord.setString(4, record.getPhone()); stmtSaveNewRecord.setString(5, record.getEmail()); stmtSaveNewRecord.setString(6, record.getAddress1()); stmtSaveNewRecord.setString(7, record.getAddress2()); stmtSaveNewRecord.setString(8, record.getCity()); stmtSaveNewRecord.setString(9, record.getState()); stmtSaveNewRecord.setString(10, record.getPostalCode()); stmtSaveNewRecord.setString(11, record.getCountry()); int rowCount = stmtSaveNewRecord.executeUpdate(); ResultSet results = stmtSaveNewRecord.getGeneratedKeys(); if (results.next()) { id = results.getInt(1); } } catch(SQLException sqle) { sqle.printStackTrace(); } revert id; }   Deploying Your Application

    Now that you beget written the application, you must deploy it to users. Java technology applications can spend a variety of deployment strategies, including Java Web Start software, applets, and stand-alone JAR files. I dole the Address engage application as a stand-alone application with JAR files.

    The ANT build file, build.xml, uses a dist target to create AddressBook.jar. It besides places the database JAR file in the lib subdirectory directly under the AddressBook.jar location. The final distribution structure for the application looks like this:

    AddressBook.jar lib/derby.jar  

    In many cases, applications that spend third-party libraries such as derby.jar require an external script to run. The script usually places the third-party JAR files on the classpath and then executes the application from its JAR. This mode is troublesome, however, because it requires multiple scripts, typically one for each supported host operating system. For example, to support distribution on Windows, Solaris, and Linux platforms, I would create a run.bat batch file for the Windows platform and a run.csh script for a Solaris or Linux platform. Instead, they can avoid these clumsy execution scripts.

    If their build process includes classpath information in the AddressBook.jar manifest file, you can elope the application by simply passing the AddressBook.jar file on the execution command line. On most platforms, you can besides just double-click on the JAR file appellation in a graphical window. On a command line, you can spend this simple execution command:

    java -jar AddressBook.jar  

    This simple deployment and execution scenario can be accomplished by creating a manifest.mf file that becomes portion of the AddressBook.jar file. You can comprise information in the manifest that tells the Java programming language interpreter which class contains the main mode and what other JAR files should become portion of the classpath. The following manifest does both, and they can comprise it when edifice AddressBook.jar.

    Manifest-Version: 1.0 Main-Class: com.sun.demo.addressbook.AddressFrame Class-Path: lib/derby.jar  

    Once your build process generates the application distribution structure shown previously, you can simply dole this structure as a ZIP file. Users can simply unzip the file into any location and elope the AddressBook.jar file. The AddressBook.jar file will accommodate the manifest file mentioned earlier and will command your runtime environment what JAR files should besides be on the classpath. Of course, because Java DB is embedded into this application, it must be able to find lib/derby.jar in order to elope correctly.

    Working with Java DB is light and fun. Java DB makes it feasible to create and dole an embedded database with minimal effort. Just recollect a few tips to gain your work with Java DB successful:

  • Place the derby.jar file in your evolution environment's classpath so that your Java technology compiler and runtime environment can find the libraries to compile and elope the application.
  • Set the derby.system.home system property to command Java DB where to find your database. You can set this property programmatically or on the command line.
  • Create a build process that places the derby.jar file in a lib subdirectory immediately below your application's own directory.
  • Add derby.jar to the application classpath by including a Class-Path property in your application JAR's manifest file.
  • Footnote

    The terms "Java Virtual Machine" and "JVM" abject a Virtual Machine for the Java platform."

    For More Information


    Appeal Virtual Machines JRockit Achieves Java Technology Compatibility and Begins Shipping to Customers | killexams.com actual questions and Pass4sure dumps

    November 20, 2001 05:52 ET | Source: Appeal Virtual Machines

    SAN MATEO, Calif., Nov. 20, 2001 (PRIMEZONE) -- Appeal Virtual Machines, a technology leader in producing manageable, high performance virtual machines for the Java(TM) platform, today announced that it has achieved replete Java 2 Platform, Standard Edition (J2SE(TM)) compatibility for the company's JRockit product for the Windows2000/NT operating systems. mount with release 3.0, which is shipping today, the JRockit products are certified 100% Java compatible. replete compatibility for JRockit gives companies the option to select a Java virtual machine that can be integrated, optimized and independently configured and managed for their unique operating environment.

    The JRockit 3.0 version available today besides has significant functional enhancements including significant improvements for multiprocessor environments. JRockit 3.0 besides introduces a unique management console for the virtual machine for Java technology. This is a novel feature which allows companies running the Java technology to monitor and manage the performance of the virtual machine and the Java application running with it. Administrators can view the operating characteristics of the virtual machine and the Java application and can be automatically notified of changes in resource availability or changes in operating characteristics as they occur. Based on this information administrators can identify bottlenecks in performance and change operating and environmental parameters to optimize performance and availability.

    "Appeal is very pleased to be designated Java compatible for Windows 2000/NT," said Dave Parker, CEO, Appeal Virtual Machines. "Appeal's unique value is empowering higher performance Java solutions for customers. Delivering a manageable, tunable, 100% compatible virtual machine for Java technology improves customer's control over their Java environments and increases productivity of replete Java related resources."

    "As a member of the Java Community Process(SM) program, Appeal has contributed toward the broad adoption and spend of the Java 2 Platform, Standard Edition," said Bill Pataky, Group Product Marketing Manager, Sun Microsystems. "With the completion of the J2SE compatibility requirements, they sight forward to the delivery of Appeal products that will enhance the manageability and productivity of customers' Java applications."

    The specifications for J2SE define the standard for developing multi-tier enterprise applications. JRockit is designed and optimized for the demands of server side execution of Java based applications, including multi-user scalability, selectable non-disruptive garbage collectors, support for multiprocessors, and the faculty to monitor and manage the execution of Java applications. Sun's JCK certification requires that products pass a comprehensive series of approximately 5000 compatibility tests.

    About Appeal Virtual Machines

    Appeal Virtual Machines has offices in Stockholm, Stuttgart and San Mateo California. Appeal's JRockit product line is a family of superior virtual machines for Java, providing customers and partners with manageable, high performance Java operating environments. JRockit is a line of products available for Solaris, Linux and Windows NT/2000 operating systems. The company was founded in 1998. Visit Appeal at www.jrockit.com for more information, benchmarks and a free trial license.

    Sun, Sun Microsystems, the Sun logo, Java, J2SE, Java Community Process, and The Network Is The Computer are trademarks or registered trademarks of Sun Microsystems, Inc. in the United States and other countries.

    Appeal Public Relations, San Mateo 408 832 5244 Appeal Public Relations, Stockholm +46 (0)70 710 62 83

    Stockholm, SWEDEN

    Appeal Public Relations, San Mateo 408 832 5244 Appeal Public Relations, Stockholm +46 (0)70 710 62 83

    IBM woos developers with current site | killexams.com actual questions and Pass4sure dumps

    COMPUTINGFrom...JavaWorld

    October 12, 1999Web posted at: 10:55 a.m. EDT (1455 GMT)

    by Theresa Gonzalez

    (IDG) -- In an application to compete in a playing territory that includes Microsoft and Sun, on September 27 IBM officially launched its developerWorks portal site, which has been in beta since June. The free online developer resource is a concrete expression of IBM's commitment to open standards and cross-platform development.

    The site includes seven zones: Open Source, Linux, Security, Unicode, Web Architecture, XML, and Java. Through its commitment to provide product- and platform-independent information, IBM aims to gain this site the ultimate resource for ebusiness application developers.

    According the Chris Bahr, program director for the site, developerWorks is an extension of IBM's alphaWorks developer site, which invites developers to participate early in the tools evolution process by giving them free access to IBM source code.

    DeveloperWorks's Open Source Zone is a forum for IBM's open source projects, where developers can enhance or repair code on specific projects. For Java developers, this zone offers the Jikes Java Compiler, which converts Java source code into machine-readable code to speed Java application development.

    Developers besides gain access to IBM Classes for Unicode (ICU), which competes with JDK's internationalization. ICU provides support for XML processing, JavaScript, and other technologies.

    Open Visualization Data Explorer is another open source project soon to be available on the site. Bahr says current open source projects will be added every three to four weeks; there is no word yet on plans to add more Java-related projects here.

    Enter the Java Zone The Java Zone demonstrates IBM's willingness to embrace Java technology and, by extension, Java developers. (In contrast, the Microsoft Developer Network homepage shows no sign of Java support.) The zone links you to free online courses, downloads, open source code, tools, access to Java user groups (JUGS), events, and engage excerpts -- replete related to Java.

    You will find links to how-to articles, news, and tutorials from various independent sources, including Developer.com, JavaWorld, ZDNet, and TechWeb, as well as original content from IBM's own staff under the direction of former JavaWorld Editor-in-Chief Michael O'Connell.

    Compared to other vendor sites, IBM seeks to downplay self-promotion in developerWorks. For example, an article on the site makes reference to the recent Volano Report, which establish that Tower Technology's TowerJ beat out IBM's current JDK 1.1.8 for Linux.

    "Essentially, if they feel the information is faultfinding to developers, we'll want to cover it in developerWorks. No corporate developer resource offers the same breadth and depth of content -- free of proprietary or company-specific constraints," says O'Connell.

    DeveloperWorks besides allows you to search the Web for Java-related material through IBM's jCentral, which provides more than 360,000 items of interest to Java developers. Less than one percent of that content is IBM's, according to Bahr. Through jCentral, developers can search other developer Web sites, such as EarthWeb's Gamelan Java resource site, replete public Web sites, and other corporate Web sites, such as Sun's Java Developer Connection site, as well as other IBM sites.

    What does IBM hope to gain by making this free resource available?

    "We're trying to spend developerWorks as a way to beget a conversation with their audience and then quickly act on the feedback they get," says Gina Poole, director of the site.

    "In the beginning, they saw that developers were largely focused on Linux, open source, and Web architecture, so they immediately created zones for those technologies. They hope to continue the conversation with developers about open standards, emerging technologies, cross-platform evolution -- to beef up the zones they beget and grow the interactive content of the site," adds Poole.

    The site allows developers to tap into IBM resources; for example, Java developers can access source code created by some 3,000 Java developers at IBM.

    The playing field

    IBM's developer portal site does beget its work Cut out for it as it competes with already-established developer sites. It's currently ranked as the number three portal site on Hot100.com's list of most visited developer Websites, behind Microsoft and Sun. Considering its advertising crusade has just been launched this week, though, this is an impressive rating.

    The biggest dissimilarity between developerWorks and other vendor-sponsored developer sites is its focus on open standards and product- and platform-independent content.

    "Sun and other vendors still survey the developer world in a relatively narrow sense, focusing on content that promotes their own products and technologies directly and not mentioning other products and technologies," says O'Connell.

    "IBM, in contrast, embraces with developerWorks an open, cross-platform, standards-based focus, which means their content is broadly relevant -- even to developers who are not interested in IBM products and services," maintains O'Connell. "We aren't confined to the company's product line. This is a rather bold step, especially for a veteran company like IBM," he adds.

    Ultimately, in exchange for replete this free content, IBM hopes developers will select to create applications that elope on IBM hardware and software. As O'Connell says, developerWorks "gives IBM exposure to broader developer community and showcases IBM expertise."

    Only time will tell, however, if developers will open up to IBM's offerings.

    Prior to joining the JavaWorld team, Theresa Gonzalez was the managing editor at Software evolution magazine. Currently, she is an associate editor at JavaWorld.

    RELATED STORIES:

    IBM's secret summitOctober 1, 1999Desktop users survey bleak future for OS/2September 23, 1999Monterey takes on MercedSeptember 22, 1999IBM markets current e-wallet for quick checkoutSeptember 16, 1999Users quest to set OS/2 into their own hands at Warpstock EuropeSeptember 9, 1999

    RELATED IDG.net STORIES:

    IBM adds Linux section to developerWorks Web site(Infoworld.com)IBM's secret open source summit(LinuxWorld)Microsoft woos developers with Java-Windows connectivity tools(Infoworld.com)SourceXchange brings developer, companies together(LinuxWorld)Rational's Eric Schurr on giving developers the tools they need(Infoworld.com)Top 10 signs you beget a stellar software developer(Infoworld.com)

    Note: Pages will open in a current browser window

    External sites are not endorsed by CNN Interactive. RELATED SITES:

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    Zend [6 Certification Exam(s) ]





    References :


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