org.apache.ambari.server.view.persistence

Class DataStoreImpl

java.lang.Object

org.apache.ambari.server.view.persistence.DataStoreImpl

All Implemented Interfaces:

org.apache.ambari.view.DataStore

public class DataStoreImpl
extends Object
implements org.apache.ambari.view.DataStore

A data store implementation that uses dynamic JPA entities to persist view entities to the Ambari database.

Field Summary

Fields

Modifier and Type	Field and Description
protected static int	MAX_ENTITY_FIELD_LENGTH_TOTAL Max total length of all the fields of an entity.
protected static int	MAX_ENTITY_STRING_FIELD_LENGTH Max length of entity string field.

Constructor Summary

Constructors

Constructor and Description
DataStoreImpl()

Method Summary

Modifier and Type	Method and Description
<T> T	find(Class<T> clazz, Object primaryKey)
<T> Collection<T>	findAll(Class<T> clazz, String whereClause)
void	remove(Object entity)
void	store(Object entity)

Methods inherited from class java.lang.Object

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

Field Detail

MAX_ENTITY_STRING_FIELD_LENGTH

protected static final int MAX_ENTITY_STRING_FIELD_LENGTH

Max length of entity string field.

See Also:

Constant Field Values

MAX_ENTITY_FIELD_LENGTH_TOTAL

protected static final int MAX_ENTITY_FIELD_LENGTH_TOTAL

Max total length of all the fields of an entity.

See Also:

Constant Field Values

Constructor Detail

DataStoreImpl

public DataStoreImpl()

Method Detail

store

public void store(Object entity)
           throws org.apache.ambari.view.PersistenceException

Specified by:

store in interface org.apache.ambari.view.DataStore

Throws:

org.apache.ambari.view.PersistenceException

remove

public void remove(Object entity)
            throws org.apache.ambari.view.PersistenceException

Specified by:

remove in interface org.apache.ambari.view.DataStore

Throws:

org.apache.ambari.view.PersistenceException

find

public <T> T find(Class<T> clazz,
                  Object primaryKey)
           throws org.apache.ambari.view.PersistenceException

Specified by:

find in interface org.apache.ambari.view.DataStore

Throws:

org.apache.ambari.view.PersistenceException

findAll

public <T> Collection<T> findAll(Class<T> clazz,
                                 String whereClause)
                          throws org.apache.ambari.view.PersistenceException

Specified by:

findAll in interface org.apache.ambari.view.DataStore

Throws:

org.apache.ambari.view.PersistenceException