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	findByResourceId(long resourceId) Find a view instance by given resource id.
ResourceEntity	findResourceForViewInstance(String viewName, String instanceName) Gets the associated ResourceEntity for a given instance.
ViewInstanceEntity	merge(ViewInstanceEntity viewInstanceEntity) Merge the state of the given entity into the current persistence context.
ViewInstanceDataEntity	mergeData(ViewInstanceDataEntity viewInstanceDataEntity) Merge the state of the given entity data 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.
void	removeData(ViewInstanceDataEntity viewInstanceDataEntity) Remove the entity instance data.

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

findByResourceId

public ViewInstanceEntity findByResourceId(long resourceId)

Find a view instance by given resource id.

Parameters:

resourceId - resource id

Returns:

a matching view instance or null

findAll

public List<ViewInstanceEntity> findAll()

Find all view instances.

Returns:

all views or an empty List

findResourceForViewInstance

public ResourceEntity findResourceForViewInstance(String viewName,
                                                  String instanceName)

Gets the associated ResourceEntity for a given instance.

Parameters:

viewName - the name of the view

instanceName - the name of the view instance

Returns:

the associated resource entity or null.

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

mergeData

public ViewInstanceDataEntity mergeData(ViewInstanceDataEntity viewInstanceDataEntity)

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

Parameters:

viewInstanceDataEntity - entity to merge

Returns:

the merged entity

removeData

public void removeData(ViewInstanceDataEntity viewInstanceDataEntity)

Remove the entity instance data.

Parameters:

viewInstanceDataEntity - entity to remove