Class GetGates

java.lang.Object

org.deltava.dao.DAO

org.deltava.dao.GetGates

public class GetGates
extends DAO

A Data Access Object to load Airport gate information.

Since:

5.1

Version:

12.1

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
GetGates(Connection c)	Initializes the Data Access Object.

Method Summary

Modifier and Type	Method	Description
Collection<Gate>	getAll()	Returns all Airport gates.
Gate	getGate(ICAOAirport a, String code)	Loads a specific gate.
List<Gate>	getGates(ICAOAirport a)	Returns popular Gates for a particular Airport.
GateUsage	getUsage(RoutePair rp, boolean isDeparture, String dbName)	Returns popular Gates for a particular Route.
List<Airport>	getUsagePairs(Airport a, boolean isDeparture)	Returns available Airports for Gate usage statistics for a given Airport.
void	populate(FlightInfo info)	Loads specific gates for an ACARS Flight.

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

GetGates

public GetGates(Connection c)

Initializes the Data Access Object.

Parameters:

c - the JDBC connection to use

Method Details

getAll

public Collection<Gate> getAll()
                        throws DAOException

Returns all Airport gates.

Returns:

a Collection of Gates

Throws:

DAOException - if a JDBC error occurs

populate

public void populate(FlightInfo info)
              throws DAOException

Loads specific gates for an ACARS Flight.

Parameters:

info - the ACARS FlightInfo bean

Throws:

DAOException - if a JDBC error occurs

getGates

public List<Gate> getGates(ICAOAirport a)
                    throws DAOException

Returns popular Gates for a particular Airport.

Parameters:

a - the Airport

Returns:

a List of Gates, ordered by name

Throws:

DAOException - if a JDBC error occurs

getUsage

public GateUsage getUsage(RoutePair rp,
 boolean isDeparture,
 String dbName)
                   throws DAOException

Returns popular Gates for a particular Route.

Parameters:

rp - the RoutePair

isDeparture - TRUE if returning preferred departure Gate, otherwise FALSE

dbName - the database name

Returns:

a List of Gates, ordered by popularity

Throws:

DAOException - if a JDBC error occurs

getUsagePairs

public List<Airport> getUsagePairs(Airport a,
 boolean isDeparture)
                            throws DAOException

Returns available Airports for Gate usage statistics for a given Airport.

Parameters:

a - the Airport

isDeparture - TRUE for departure Gate statistics, otherwise FALSE

Returns:

a List of Airports

Throws:

DAOException - if a JDBC error occurs

getGate

public Gate getGate(ICAOAirport a,
 String code)
             throws DAOException

Loads a specific gate.

Parameters:

a - the ICAOAirport

code - the Gate name

Returns:

a Collection of Gate beans

Throws:

DAOException - if a JDBC error occurs