| Conditional Sequence Generator Selection [message #948199] |
Wed, 17 October 2012 17:18  |
Eclipse User |
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I'm still a JPA neophyte but starting to get the hang of things.
Attempting to integrate JPA with a legacy RDBMS supporting both SQL Server and Oracle. For Oracle, we use sequences and for SQL, a table.
I need to be able to conditionally use one of two generators based on database type:
Oracle
@Id
@GeneratedValue(generator="generator")
@SequenceGenerator(name="generator", sequenceName="PBX_SEQ", allocationSize=1)
@Column(name="PBX_ID")
protected long pbxId;
SQL Server
@Id
@GeneratedValue(generator="generator")
@TableGenerator(name="generator", table="SEQTAB", pkColumnName="TABLENAM", valueColumnName="ID", pkColumnValue="PBX", allocationSize=1)
@Column(name="PBX_ID")
protected long pbxId;
How best would one approach this challenge?
Thanks.
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