com.orientechnologies.orient.core.db

Class ODatabasePool

java.lang.Object

com.orientechnologies.orient.core.db.ODatabasePool

All Implemented Interfaces:

AutoCloseable

public class ODatabasePool
extends Object
implements AutoCloseable

A Pool of databases.

Example of usage with an OrientDB context:

 
 OrientDB orientDb= new OrientDB("remote:localhost","root","password");
 //...
 ODatabasePool pool = new ODatabasePool(orientDb,"myDb","admin","adminpwd");
 ODatabaseDocument session = pool.acquire();
 //....
 session.close();
 pool.close();
 orientDb.close();

 
 

Example of usage as simple access to a specific database without a context:

 ODatabasePool pool = new ODatabasePool("remote:localhost/myDb","admin","adminpwd");
 ODatabaseDocument session = pool.acquire();
 //....
 session.close();
 pool.close();

 

Created by tglman on 08/02/17.

Constructor Summary

Constructors

Constructor and Description
ODatabasePool(OrientDB environment, String database, String user, String password) Open a new database pool on a specific environment.
ODatabasePool(OrientDB environment, String database, String user, String password, OrientDBConfig configuration) Open a new database pool on a specific environment, with a specific configuration for this pool.
ODatabasePool(String url, String user, String password) Open a new database pool from a url, useful in case the application access to only a database or do not manipulate databases.
ODatabasePool(String url, String user, String password, OrientDBConfig configuration) Open a new database pool from a url and additional configuration, useful in case the application access to only a database or do not manipulate databases.
ODatabasePool(String environment, String database, String user, String password) Open a new database pool from a environment and a database name, useful in case the application access to only a database or do not manipulate databases.
ODatabasePool(String environment, String database, String user, String password, OrientDBConfig configuration) Open a new database pool from a environment and a database name with a custom configuration, useful in case the application access to only a database or do not manipulate databases.

Method Summary

Modifier and Type	Method and Description
ODatabaseSession	acquire() Acquire a session from the pool, if no session are available will wait until a session is available or a timeout is reached
void	close()
boolean	isClosed() Check if database pool is closed

Methods inherited from class java.lang.Object

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

Constructor Detail

ODatabasePool

public ODatabasePool(OrientDB environment,
                     String database,
                     String user,
                     String password)

Open a new database pool on a specific environment.

Parameters:

environment - the starting environment.

database - the database name

user - the database user for the current pool of databases.

password - the password relative to the user name

ODatabasePool

public ODatabasePool(OrientDB environment,
                     String database,
                     String user,
                     String password,
                     OrientDBConfig configuration)

Open a new database pool on a specific environment, with a specific configuration for this pool.

Parameters:

environment - the starting environment.

database - the database name

user - the database user for the current pool of databases.

password - the password relative to the user name

configuration - the configuration relative for the current pool.

ODatabasePool

public ODatabasePool(String url,
                     String user,
                     String password)

Open a new database pool from a url, useful in case the application access to only a database or do not manipulate databases.

Parameters:

url - the full url for a database, like "embedded:/full/path/to/database" or "remote:localhost/database"

user - the database user for the current pool of databases.

password - the password relative to the user

ODatabasePool

public ODatabasePool(String url,
                     String user,
                     String password,
                     OrientDBConfig configuration)

Open a new database pool from a url and additional configuration, useful in case the application access to only a database or do not manipulate databases.

Parameters:

url - the full url for a database, like "embedded:/full/path/to/database" or "remote:localhost/database"

user - the database user for the current pool of databases.

password - the password relative to the user

configuration - the configuration relative to the current pool.

ODatabasePool

public ODatabasePool(String environment,
                     String database,
                     String user,
                     String password)

Open a new database pool from a environment and a database name, useful in case the application access to only a database or do not manipulate databases.

Parameters:

environment - the url for an environemnt, like "embedded:/the/environment/path/" or "remote:localhost"

database - the database for the current url.

user - the database user for the current pool of databases.

password - the password relative to the user

ODatabasePool

public ODatabasePool(String environment,
                     String database,
                     String user,
                     String password,
                     OrientDBConfig configuration)

Open a new database pool from a environment and a database name with a custom configuration, useful in case the application access to only a database or do not manipulate databases.

Parameters:

environment - the url for an environemnt, like "embedded:/the/environment/path/" or "remote:localhost"

database - the database for the current url.

user - the database user for the current pool of databases.

password - the password relative to the user

configuration - the configuration relative to the current pool.

Method Detail

acquire

public ODatabaseSession acquire()
                         throws OAcquireTimeoutException

Acquire a session from the pool, if no session are available will wait until a session is available or a timeout is reached

Returns:

a session from the pool.

Throws:

OAcquireTimeoutException - in case the timeout for waiting for a session is reached.

close

public void close()

Specified by:

close in interface AutoCloseable

isClosed

public boolean isClosed()

Check if database pool is closed

Returns:

true if database pool is closed