Class GetNavData

java.lang.Object

org.deltava.dao.DAO

org.deltava.dao.GetNavData

Direct Known Subclasses:

GetNavAirway

public class GetNavData
extends DAO

A Data Access Object to read Navigation data.

Since:

1.0

Version:

12.4

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
GetNavData(Connection c)	Initializes the Data Access Object.

Method Summary

Modifier and Type	Method	Description
NavigationDataMap	get(String code)	Returns a Navigation object.
AirportLocation	getAirport(String code)	Returns an Airport location from the database.
Collection<NavigationDataBean>	getAll(Navaid type)	Returns all navaids of a particular type in the database.
NavigationDataMap	getBearingRange(String code)	Retrieves "special" navaids such as CODE[bearing][distance].
LandingRunways	getBestRunway(ICAOAirport a, Simulator sim, GeoLocation loc, int hdg)	Returns the likeliest runway for a takeoff or landing.
NavigationDataMap	getByID(Collection<String> ids)	Returns a group of Navigation objects.
Collection<NavigationDataBean>	getIntersections(GeoLocation loc, int distance)	Returns all Intersections within a set number of miles from a point.
Collection<NavigationDataBean>	getObjects(GeoLocation loc, int distance)	Returns all Navigation objects (except Intersections/Runways/Gates) within a set number of miles from a point.
Runway	getRunway(ICAOAirport a, String rwyCode, Simulator sim)	Returns information about a particular airport Runway.
List<Runway>	getRunways()	Returns all Runways in the database.
List<Runway>	getRunways(ICAOAirport a)	Returns information about all airport Runways in all Simulators.
List<Runway>	getRunways(ICAOAirport a, Simulator sim)	Returns all Runways for a particular Airport.

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

GetNavData

public GetNavData(Connection c)

Initializes the Data Access Object.

Parameters:

c - the JDBC connection to use

Method Details

get

public NavigationDataMap get(String code)
                      throws DAOException

Returns a Navigation object.

Parameters:

code - the object code

Returns:

a NavigationDataMap

Throws:

DAOException - if a JDBC error occurs

getBearingRange

public NavigationDataMap getBearingRange(String code)
                                  throws DAOException

Retrieves "special" navaids such as CODE[bearing][distance].

Parameters:

code - the code/bearing/distance

Returns:

a NavigationDataMap

Throws:

DAOException - if a JDBC error occurs

getAirport

public AirportLocation getAirport(String code)
                           throws DAOException

Returns an Airport location from the database.

Parameters:

code - the airport ICAO code

Returns:

an AirportLocation bean, or null if not found

Throws:

DAOException - if a JDBC error occurs

getAll

public Collection<NavigationDataBean> getAll(Navaid type)
                                      throws DAOException

Returns all navaids of a particular type in the database.

Parameters:

type - the Navaid

Returns:

a Collection of NavigationDataBeans

Throws:

DAOException - if a JDBC error occurs

getRunways

public List<Runway> getRunways()
                        throws DAOException

Returns all Runways in the database.

Returns:

a List of Runways

Throws:

DAOException - if a JDBC error occurs

getRunways

public List<Runway> getRunways(ICAOAirport a)
                        throws DAOException

Returns information about all airport Runways in all Simulators.

Parameters:

a - the ICAOAirport

Returns:

a Runway bean, or null if not found

Throws:

DAOException - if a JDBC error occurs

getRunway

public Runway getRunway(ICAOAirport a,
 String rwyCode,
 Simulator sim)
                 throws DAOException

Returns information about a particular airport Runway.

Parameters:

a - the ICAOAirport

rwyCode - the runway name/number

sim - the Simulator to select

Returns:

a Runway bean, or null if not found

Throws:

DAOException - if a JDBC error occurs

getRunways

public List<Runway> getRunways(ICAOAirport a,
 Simulator sim)
                        throws DAOException

Returns all Runways for a particular Airport.

Parameters:

a - the ICAOAirport

sim - the Simulator to select

Returns:

a Collection of Runway beans

Throws:

DAOException - if a JDBC error occurs

getBestRunway

public LandingRunways getBestRunway(ICAOAirport a,
 Simulator sim,
 GeoLocation loc,
 int hdg)
                             throws DAOException

Returns the likeliest runway for a takeoff or landing.

Parameters:

a - the Airport

sim - the Simulator

loc - the takeoff/landing location

hdg - the takeoff/landing heading in degrees

Returns:

a Runway, or null if not found

Throws:

DAOException - if a JDBC error occurs

getByID

public NavigationDataMap getByID(Collection<String> ids)
                          throws DAOException

Returns a group of Navigation objects.

Parameters:

ids - a Collection of navigation object codes

Returns:

a NavigationDataMap bean

Throws:

DAOException - if a JDBC error occurs

getIntersections

public Collection<NavigationDataBean> getIntersections(GeoLocation loc,
 int distance)
                                                throws DAOException

Returns all Intersections within a set number of miles from a point.

Parameters:

loc - the central location

distance - the distance in miles

Returns:

a Map of Intersections, with the code as the key

Throws:

DAOException - if a JDBC error occurs

IllegalArgumentException - if distance is negative or > 1000

getObjects

public Collection<NavigationDataBean> getObjects(GeoLocation loc,
 int distance)
                                          throws DAOException

Returns all Navigation objects (except Intersections/Runways/Gates) within a set number of miles from a point.

Parameters:

loc - the central location

distance - the distance in miles

Returns:

a Map of NavigationDataBeans, with the code as the key

Throws:

DAOException - if a JDBC error occurs

IllegalArgumentException - if distance is negative or > 1500