org.apache.ambari.server.orm.dao

Class ArtifactDAO

java.lang.Object

org.apache.ambari.server.orm.dao.ArtifactDAO

public class ArtifactDAO
extends Object

Cluster Artifact Data Access Object.

Constructor Summary

Constructors

Constructor and Description
ArtifactDAO()

Method Summary

Modifier and Type	Method and Description
void	create(ArtifactEntity entity) Make an instance managed and persistent.
List<ArtifactEntity>	findByForeignKeys(TreeMap<String,String> foreignKeys) Find all artifacts for the specified foreign keys.
List<ArtifactEntity>	findByName(String artifactName) Find all artifacts for the specified artifact name.
ArtifactEntity	findByNameAndForeignKeys(String artifactName, TreeMap<String,String> foreignKeys) Find an artifact with the given name and foreign keys.
ArtifactEntity	merge(ArtifactEntity artifactEntity) Merge the state of the given entity into the current persistence context.
void	refresh(ArtifactEntity entity) Refresh the state of the instance from the database, overwriting changes made to the entity, if any.
void	remove(ArtifactEntity artifactEntity) Remove the entity instance.

Methods inherited from class java.lang.Object

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

Constructor Detail

ArtifactDAO

public ArtifactDAO()

Method Detail

findByNameAndForeignKeys

public ArtifactEntity findByNameAndForeignKeys(String artifactName,
                                               TreeMap<String,String> foreignKeys)

Find an artifact with the given name and foreign keys.

Parameters:

artifactName - name of artifact to find

foreignKeys - foreign keys of artifact as json representation of a map of key properties to values

Returns:

a matching artifact or null

findByForeignKeys

public List<ArtifactEntity> findByForeignKeys(TreeMap<String,String> foreignKeys)

Find all artifacts for the specified foreign keys.

Parameters:

foreignKeys - foreign keys of artifact as json representation of a map of key properties to values

Returns:

all artifacts for the specified foreign keys or an empty List

findByName

public List<ArtifactEntity> findByName(String artifactName)

Find all artifacts for the specified artifact name.

Parameters:

artifactName - name of artifact to find

Returns:

all artifacts with the specified artifact name or an empty List

refresh

public void refresh(ArtifactEntity entity)

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

Parameters:

entity - entity to refresh

create

public void create(ArtifactEntity entity)

Make an instance managed and persistent.

Parameters:

entity - entity to persist

merge

public ArtifactEntity merge(ArtifactEntity artifactEntity)

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

Parameters:

artifactEntity - entity to merge

Returns:

the merged entity

remove

public void remove(ArtifactEntity artifactEntity)

Remove the entity instance.

Parameters:

artifactEntity - entity to remove