You need to create a custom NamingStrategy.
Assuming you use spring and hibernate with JPA, here is a configuration snippet with a custom NamingStrategy:
<bean id="entityManagerFactory"
class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
<property name="persistenceUnitName" value="myunit" />
<property name="dataSource" ref="dataSource" />
<property name="persistenceXmlLocation"
value="classpath:META-INF/persistence.xml" />
<property name="jpaVendorAdapter">
<bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter">
<property name="showSql" value="false" />
<property name="generateDdl" value="true" />
<property name="database" value="MYSQL" />
</bean>
</property>
<property name="jpaProperties">
<props>
<prop
key="hibernate.ejb.naming_strategy">
com.yourcompany.CustomNamingStrategy
</prop>
</props>
</property>
</bean>
If you don’t use spring, configuration will be different, but you can still use a custom NamingStrategy (see Implementing a NamingStrategy from the Hibernate Documentation).
Anyway, here is a sample NamingStrategy that builds table names of the form TYPE1_TYPE2 for join tables and adds a common prefix to all tables:
public class CustomNamingStrategy extends ImprovedNamingStrategy {
private static final long serialVersionUID = 1L;
private static final String PREFIX = "PFX_";
@Override
public String classToTableName(final String className) {
return this.addPrefix(super.classToTableName(className));
}
@Override
public String collectionTableName(final String ownerEntity,
final String ownerEntityTable, final String associatedEntity,
final String associatedEntityTable, final String propertyName) {
return this.addPrefix(super.collectionTableName(ownerEntity,
ownerEntityTable, associatedEntity, associatedEntityTable,
propertyName));
}
@Override
public String logicalCollectionTableName(final String tableName,
final String ownerEntityTable, final String associatedEntityTable,
final String propertyName) {
return this.addPrefix(super.logicalCollectionTableName(tableName,
ownerEntityTable, associatedEntityTable, propertyName));
}
private String addPrefix(final String composedTableName) {
return PREFIX
+ composedTableName.toUpperCase().replace("_", "");
}
}