org.openslx.imagemaster.db.Database Class Reference

Collaboration diagram for org.openslx.imagemaster.db.Database:

Static Public Member Functions
static MysqlConnection	getConnection ()
	Get a connection to the database. More...
static void	printCharsetInformation ()
static void	printDebug ()
static boolean	isDuplicateKeyException (SQLException e)

Static Package Functions
	[static initializer]
	Static initializer for setting up the database connection. More...
static void	returnConnection (MysqlConnection connection)
	Called by a MysqlConnection when its close()-method is called, so the connection will be added to the pool of available connections again. More...

Static Private Attributes
static final Logger	LOGGER = LogManager.getLogger( Database.class )
static final Queue < MysqlConnection >	pool = new ConcurrentLinkedQueue<>()
	Pool of available connections. More...
static final Set< MysqlConnection >	busyConnections = Collections.newSetFromMap( new ConcurrentHashMap<MysqlConnection, Boolean>() )
	Set of connections currently handed out. More...
static final String	host
static final String	dbname
static final String	user
static final String	password

Detailed Description

Definition at line 22 of file Database.java.

Member Function Documentation

org.openslx.imagemaster.db.Database.[static initializer] ( )

staticpackage

Static initializer for setting up the database connection.

This gets called implicitly as soon as the class loader loads the class. In most cases that happens when the class is being accessed for the first time during run time.

static MysqlConnection org.openslx.imagemaster.db.Database.getConnection ( )

static

Get a connection to the database.

If there is a valid connection in the pool, it will be returned. Otherwise, a new connection is created. If there are more than 20 busy connections, null is returned.

Returns

connection to database, or null

Definition at line 92 of file Database.java.

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static boolean org.openslx.imagemaster.db.Database.isDuplicateKeyException ( SQLException  e )

static

Definition at line 181 of file Database.java.

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static void org.openslx.imagemaster.db.Database.printCharsetInformation ( )

static

Definition at line 154 of file Database.java.

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static void org.openslx.imagemaster.db.Database.printDebug ( )

static

Definition at line 175 of file Database.java.

static void org.openslx.imagemaster.db.Database.returnConnection ( MysqlConnection  connection )

staticpackage

Called by a MysqlConnection when its close()-method is called, so the connection will be added to the pool of available connections again.

Parameters

connection

Definition at line 147 of file Database.java.

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Member Data Documentation

final Set<MysqlConnection> org.openslx.imagemaster.db.Database.busyConnections = Collections.newSetFromMap( new ConcurrentHashMap<MysqlConnection, Boolean>() )

staticprivate

Set of connections currently handed out.

Definition at line 34 of file Database.java.

final String org.openslx.imagemaster.db.Database.dbname

staticprivate

Definition at line 37 of file Database.java.

final String org.openslx.imagemaster.db.Database.host

staticprivate

Definition at line 36 of file Database.java.

final Logger org.openslx.imagemaster.db.Database.LOGGER = LogManager.getLogger( Database.class )

staticprivate

Definition at line 25 of file Database.java.

final String org.openslx.imagemaster.db.Database.password

staticprivate

Definition at line 39 of file Database.java.

final Queue<MysqlConnection> org.openslx.imagemaster.db.Database.pool = new ConcurrentLinkedQueue<>()

staticprivate

Pool of available connections.

Definition at line 29 of file Database.java.

final String org.openslx.imagemaster.db.Database.user

staticprivate

Definition at line 38 of file Database.java.

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The documentation for this class was generated from the following file:

• org/openslx/imagemaster/db/Database.java