Package 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 Details

    • 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 Details

    • 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