uk.ac.ebi.intact.persistence
Class PostgresSequenceManager

java.lang.Object
  |
  +--uk.ac.ebi.intact.persistence.AbstractSequenceManager
        |
        +--uk.ac.ebi.intact.persistence.PostgresSequenceManager

All Implemented Interfaces:

org.apache.ojb.broker.util.sequence.SequenceManager

public class PostgresSequenceManager

extends AbstractSequenceManager

This sequence manager accesses a database sequence object to get the next unique id, leaving the management of the sequence to the database. In it's current implementation, this class is Postgresql-specific, but some other RDBMS also offer sequence objects. IDs are unique across all classes.

Author:

hhe .adapted to postgresql DBMS by Z.Tassamart

, Samuel Kerrien (skerrien@ebi.ac.uk) - abstraction of the model

Field Summary

Fields inherited from class uk.ac.ebi.intact.persistence.AbstractSequenceManager

_sitePrefix, _stmt, broker, CONFIG_FILE

Constructor Summary

PostgresSequenceManager(org.apache.ojb.broker.PersistenceBroker broker)
Public constructor

Method Summary

protected java.lang.String

getNextSequence() Called by the vendor specific implementation to obtain the SQL statement which allows to get the next unique ID.

Methods inherited from class uk.ac.ebi.intact.persistence.AbstractSequenceManager

getUniqueId, getUniqueLong, getUniqueObject, getUniqueString, prepareSequenceStm

Methods inherited from class java.lang.Object

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

Constructor Detail

PostgresSequenceManager

public PostgresSequenceManager(org.apache.ojb.broker.PersistenceBroker broker)
                        throws IntactException

Public constructor

Method Detail

getNextSequence

protected final java.lang.String getNextSequence()

Description copied from class: AbstractSequenceManager

Called by the vendor specific implementation to obtain the SQL statement which allows to get the next unique ID.

Specified by:

getNextSequence in class AbstractSequenceManager

Returns:

the SQL statement which allows to get the next unique ID