Class GetChart

java.lang.Object

org.deltava.dao.DAO

org.deltava.dao.GetChart

public class GetChart
extends DAO

A Data Access Object for Approach Charts.

Since:

1.0

Version:

10.6

Author:

Luke

Field Summary

Fields inherited from class DAO

_queryMax, _queryStart, _queryTimeout, WGS84_SRID

Modifier and Type	Field	Description
protected int	_queryMax	The maximum number of rows to return.
protected int	_queryStart	The row number at which to start returning results.
protected int	_queryTimeout	The query timeout, in seconds.
protected static final int	WGS84_SRID	The SRID used for geolocation queries.

Constructor Summary

Constructors

Constructor	Description
GetChart(Connection c)	Creates the DAO with a JDBC connection.

Method Summary

Modifier and Type	Method	Description
Chart	get(int id)	Returns a Chart based on its Database ID.
List<Airport>	getAirports()	Returns all Airports with available charts.
Collection<Chart>	getByIDs(Collection<Integer> IDs)	Retrieves Charts based on a group of database IDs.
Map<String,Integer>	getChartIDs(Collection<String> externalIDs)	Returns the database IDs for a set of external Chart IDs.
List<Chart>	getCharts(ICAOAirport a)	Returns all Chart metadata for a particular Airport.
List<Chart>	getChartsByEvent(int eventID)	Returns all Charts for a particular Event.
Map<Airport,Integer>	getMaxAges()	Returns the average age of charts.

Methods inherited from class DAO

commitTransaction, createTimestamp, executeIDs, executeUpdate, executeUpdate, expandDate, formatDBName, formatLocation, getNewID, getQueryCount, prepare, prepareWithoutLimits, rollbackTransaction, setQueryMax, setQueryStart, setQueryTimeout, startTransaction, toID, toID, toInstant

Modifier and Type	Method	Description
protected void	commitTransaction()	Commits a multi-step transaction to the database.
protected static Timestamp	createTimestamp(Instant i)	Null-safe conversion of an Instant to a Timestamp.
protected static List<Integer>	executeIDs(PreparedStatement ps)	Helper method to extract database ID data from the result set.
protected static int	executeUpdate(PreparedStatement ps, int minUpdateCount)	Executes an UPDATE transaction on a prepared statement, and throws a SQLExceptionif less than the expected number of rows were updated.
protected static int	executeUpdate(PreparedStatement ps, int minPerUpdate, int minTotal)	Executes an batched UPDATE transaction on a prepared statement, and throws a SQLExceptionif less than the expected number of rows were updated per batch entry.
protected static Instant	expandDate(Date dt)	Converts a date-only JDBC value into a full timestamp.
protected static String	formatDBName(String db)	Formats a database name by converting to lowercase.
protected static String	formatLocation(GeoLocation loc)	Converts a geographic location into a MySQL WKT formatted point.
protected int	getNewID()	Returns the AUTO_INC column value generated by the previous JDBC transaction.
static final long	getQueryCount()	Returns the total number of queries executed since the JVM was started.
protected PreparedStatement	prepare(String sql)	Initialize the prepared statement with an arbitrary SQL statement.
protected PreparedStatement	prepareWithoutLimits(String sql)	Initialize the prepared statement with an abitrary SQL statement, without applying the DAO's query result limitations.
protected void	rollbackTransaction()	Rolls back a multi-step transaction before it is completed.
final void	setQueryMax(int maxRows)	Sets the maximum number of rows in the returned result set.
final void	setQueryStart(int rowStart)	Sets the first row of the results to return.
void	setQueryTimeout(int timeout)	Sets the timeout for any SQL operations.
protected void	startTransaction()	Marks the start of a multi-step database transaction.
protected static Integer	toID(Object o)	Converts a Database bean or an Integer into an Integer.
protected static Collection<Integer>	toID(Collection<?> ids)	Converts a collection of Objects into Integer IDs.
protected static Instant	toInstant(Timestamp dt)	Null-safe conversion of a Timestamp to an Instant.

Methods inherited from class Object

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

Constructor Details

GetChart

public GetChart(Connection c)

Creates the DAO with a JDBC connection.

Parameters:

c - the JDBC connection to use

Method Details

getAirports

public List<Airport> getAirports()
                          throws DAOException

Returns all Airports with available charts.

Returns:

a List of Airports

Throws:

DAOException - if a JDBC error occurs

getMaxAges

public Map<Airport,Integer> getMaxAges()
                                throws DAOException

Returns the average age of charts.

Returns:

a Map of maximum ages in days, keyed by Airport

Throws:

DAOException - if a JDBC error occurs

getCharts

public List<Chart> getCharts(ICAOAirport a)
                      throws DAOException

Returns all Chart metadata for a particular Airport.

Parameters:

a - the Airport bean

Returns:

a List of Chart objects

Throws:

DAOException - if a JDBC error occurs

getChartsByEvent

public List<Chart> getChartsByEvent(int eventID)
                             throws DAOException

Returns all Charts for a particular Event.

Parameters:

eventID - the event Database ID

Returns:

a List of Chart objects

Throws:

DAOException - if a JDBC error occurs

get

public Chart get(int id)
          throws DAOException

Returns a Chart based on its Database ID.

Parameters:

id - the database id

Returns:

the Chart

Throws:

DAOException - if a JDBC error occurs

getByIDs

public Collection<Chart> getByIDs(Collection<Integer> IDs)
                           throws DAOException

Retrieves Charts based on a group of database IDs.

Parameters:

IDs - a Collection of database IDs as Integers

Returns:

a Collection of Charts

Throws:

DAOException - if a JDBC error occurs

getChartIDs

public Map<String,Integer> getChartIDs(Collection<String> externalIDs)
                                throws DAOException

Returns the database IDs for a set of external Chart IDs.

Parameters:

externalIDs - a Collection of external chart IDs

Returns:

a Map of database IDs, keyed by external ID

Throws:

DAOException

See Also:

• ExternalChart.getExternalID()