org.apache.ambari.server.orm.dao

Class ViewInstanceDAO

java.lang.Object

org.apache.ambari.server.orm.dao.ViewInstanceDAO

public class ViewInstanceDAO
extends Object

View Instance Data Access Object.

Constructor Summary

Constructors

Constructor and Description
ViewInstanceDAO()

Method Summary

Modifier and Type	Method and Description
void	create(ViewInstanceEntity ViewInstanceEntity) Make an instance managed and persistent.
List<ViewInstanceEntity>	findAll() Find all view instances.
ViewInstanceEntity	findByName(String viewName, String instanceName) Find a view with the given names.
ViewInstanceEntity	merge(ViewInstanceEntity ViewInstanceEntity) Merge the state of the given entity into the current persistence context.
void	refresh(ViewInstanceEntity ViewInstanceEntity) Refresh the state of the instance from the database, overwriting changes made to the entity, if any.
void	remove(ViewInstanceEntity ViewInstanceEntity) Remove the entity instance.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ViewInstanceDAO

public ViewInstanceDAO()

Method Detail

findByName

public ViewInstanceEntity findByName(String viewName,
                                     String instanceName)

Find a view with the given names.

Parameters:

viewName - name of view

instanceName - name of the instance

Returns:

a matching view instance or null

findAll

public List<ViewInstanceEntity> findAll()

Find all view instances.

Returns:

all views or an empty List

refresh

public void refresh(ViewInstanceEntity ViewInstanceEntity)

Refresh the state of the instance from the database, overwriting changes made to the entity, if any.

Parameters:

ViewInstanceEntity - entity to refresh

create

public void create(ViewInstanceEntity ViewInstanceEntity)

Make an instance managed and persistent.

Parameters:

ViewInstanceEntity - entity to persist

merge

public ViewInstanceEntity merge(ViewInstanceEntity ViewInstanceEntity)

Merge the state of the given entity into the current persistence context.

Parameters:

ViewInstanceEntity - entity to merge

Returns:

the merged entity

remove

public void remove(ViewInstanceEntity ViewInstanceEntity)

Remove the entity instance.

Parameters:

ViewInstanceEntity - entity to remove