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PMP 1600 Questions
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Hibernate

  • Advantage of Hibernate over JDBC
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  • One to Many Relation in Hibernate
  • One to Many Relation in Hibernate bi-directional
  • Many to Many Relation in Hibernate
  • HQL: The Hibernate Query Language
  • Criteria Queries
  • Criteria Queries : Equal (eq), Not Equal(ne), Less than (le), greater than (gt),greater than or equal(ge) and Ordering the results
  • Criteria Queries: And OR conditions
  • Hibernate generator to generate id (primary key)
  • prevent concurrent update in Hibernate,slate object updatation in Hibernate,version checking in Hibernate

    Struts


  • Model View Controller (MVC)
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  • Struts Tutorial - Mutli-click prevention using struts tokens-Prevent Duplicate Submission
  • Logic Iterate Map and List

    JSP


  • JSP Tutorial
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    Spring


  • Spring Tutorial
  • Introduction to Spring
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  • Inversion of Control in Spring
  • Introduction to BeanFactory
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  • Collections Setter Injection
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  • Spring IOC Setup Step by Step
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  • ApplicationContext
  • MessageSources in Spring
  • Web Spring MVC framework
  • Developing Your First Spring Web Application
  • Developing Your Second Spring Web Application with Spring Form
  • Developing Your First Spring Web Application with Spring Validation Framework with Code Example
  • Spring integration with Hibernate
  • The JDBC DataSource

    DataSource interface as an alternative to the DriverManager for establishing the connection. A DataSource object is the representation of database or the data source in the Java programming language. DataSouce object is mostly preferred over the DriverManager for establishing a connection to the database.

    DataSource object can be thought as a factory for making connections to the particular database that the DataSource instance represents.

    DataSource has a set of properties that identify and describe the real world data source that it represents. The properties include information about the location of the database server, the network protocol use to communicate with the server the name of the database and so on.

    DataSource object works with JNDI (Java Naming and Directory interface) naming service so application can use the JNDI API to access the DataSource object.

    In short we can say that the DataSource interface is implemented to provide three kinds of connections:

    1). Basic DataSource class

    This class is provided by the driver vendor. It is used for portability and easy maintence.

    2). To provide connection pooling.

    It is provided by the application server vendor or driver vendor. It works with ConnectionPoolDataSource class provided by a driver vendor. Its advantage is portability, easy maintenence and increased performance.

    3). To provide distributed transactions

    This class works with an XADataSource class, which is provided by the driver vendor. Its advantages are easy maintenence, portability and ability to participate in distributed transactions.

    Data Source properties file example :
    db.properties file
    blocking=true
    maxFree=10
    loggingSQLWarning=true
    min=10
    $class=atg.service.jdbc.MonitoredDataSource
    loggingSQLDebug=false
    loggingSQLInfo=false
    dataSource=DBXADataSource
    max=20
    maxIdleAge=1800
    loggingSQLError=true
    -------------------------------------------------
    DBXADataSource.properties file
    $class=atg.service.jdbc.FakeXADataSource
    driver=oracle.jdbc.driver.OracleDriver
    URL=jdbc:oracle:thin:@url:1545:testdb
    user=sa
    password=sa
    readOnly=false
    needsSeparateUserInfo=true

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