org.n52.series.db.dao

Class DataDao<T extends DataEntity>

java.lang.Object

org.n52.series.db.dao.AbstractDao<T>

org.n52.series.db.dao.DataDao<T>

Type Parameters:

T - the data entity type

All Implemented Interfaces:

GenericDao<T,Long>

@Transactional
public class DataDao<T extends DataEntity>
extends AbstractDao<T>

TODO: JavaDoc

Field Summary

Fields inherited from class org.n52.series.db.dao.AbstractDao

session

Constructor Summary

Constructors

Constructor and Description
DataDao(org.hibernate.Session session)
DataDao(org.hibernate.Session session, Class<T> clazz)

Method Summary

Modifier and Type	Method and Description
List<T>	find(DbQuery query)
List<T>	getAllInstances(DbQuery parameters) Retrieves all available observation instances.
List<T>	getAllInstancesFor(DatasetEntity series) Retrieves all available observations belonging to a particular series.
List<T>	getAllInstancesFor(DatasetEntity series, DbQuery parameters) Retrieves all available observation instances belonging to a particular series.
protected String	getDatasetProperty()
T	getDataValueViaTimeend(DatasetEntity series, DbQuery query)
T	getDataValueViaTimestart(DatasetEntity series, DbQuery query)
protected org.hibernate.Criteria	getDefaultCriteria()
protected org.hibernate.Criteria	getDefaultCriteria(DbQuery parameters)
protected Class<T>	getEntityClass()
T	getInstance(Long key, DbQuery parameters)

Methods inherited from class org.n52.series.db.dao.AbstractDao

getCount, getDefaultCriteria, getInstance, hasInstance, hasInstance, i18n

Methods inherited from class java.lang.Object

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

Constructor Detail

DataDao

public DataDao(org.hibernate.Session session,
               Class<T> clazz)

DataDao

public DataDao(org.hibernate.Session session)

Method Detail

find

public List<T> find(DbQuery query)

Specified by:

find in class AbstractDao<T extends DataEntity>

getInstance

public T getInstance(Long key,
                     DbQuery parameters)
              throws DataAccessException

Specified by:

getInstance in interface GenericDao<T extends DataEntity,Long>

Overrides:

getInstance in class AbstractDao<T extends DataEntity>

Throws:

DataAccessException

getAllInstances

public List<T> getAllInstances(DbQuery parameters)
                        throws DataAccessException

Retrieves all available observation instances.

Parameters:

parameters - query parameters.

Returns:

all instances matching the given query parameters.

Throws:

DataAccessException - if accessing database fails.

getAllInstancesFor

public List<T> getAllInstancesFor(DatasetEntity series)
                           throws DataAccessException

Retrieves all available observations belonging to a particular series.

Parameters:

series - the entity to get all observations for.

Returns:

all observation entities belonging to the series.

Throws:

DataAccessException - if accessing database fails.

getAllInstancesFor

public List<T> getAllInstancesFor(DatasetEntity series,
                                  DbQuery parameters)
                           throws DataAccessException

Retrieves all available observation instances belonging to a particular series.

Parameters:

series - the series the observations belongs to.

parameters - some query parameters to restrict result.

Returns:

all observation entities belonging to the given series which match the given query.

Throws:

DataAccessException - if accessing database fails.

getDatasetProperty

protected String getDatasetProperty()

Specified by:

getDatasetProperty in class AbstractDao<T extends DataEntity>

getDefaultCriteria

protected org.hibernate.Criteria getDefaultCriteria()

Overrides:

getDefaultCriteria in class AbstractDao<T extends DataEntity>

getDefaultCriteria

protected org.hibernate.Criteria getDefaultCriteria(DbQuery parameters)

getEntityClass

protected Class<T> getEntityClass()

Specified by:

getEntityClass in class AbstractDao<T extends DataEntity>

getDataValueViaTimeend

public T getDataValueViaTimeend(DatasetEntity series,
                                DbQuery query)

getDataValueViaTimestart

public T getDataValueViaTimestart(DatasetEntity series,
                                  DbQuery query)