INTERVIEW QUESTIONS J2EE HIBERNATE DETAILS

Question: How do you map Java Objects with Database tables?

Answer: * First we need to write Java domain objects (beans with setter and getter).
* Write hbm.xml, where we map java class to table and database columns to Java class variables.

Example :

<hibernate-mapping>
<class name="com.test.User" table="user">
<property column="USER_NAME" length="255"
name="userName" not-null="true" type="java.lang.String"/>
<property column="USER_PASSWORD" length="255"
name="userPassword" not-null="true" type="java.lang.String"/>
</class>
</hibernate-mapping>

* First we need to write Java domain objects (beans with setter and getter).
* Write hbm.xml, where we map java class to table and database columns to Java class variables.

Example :

<hibernate-mapping>
<class name="com.test.User" table="user">
<property column="USER_NAME" length="255"
name="userName" not-null="true" type="java.lang.String"/>
<property column="USER_PASSWORD" length="255"
name="userPassword" not-null="true" type="java.lang.String"/>
</class>
</hibernate-mapping> Source: CoolInterview.com

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