使用Hibernate的自定义sequence

使用HIBERNATE和ORACLE， 定义了主键为自动生成，如下：

<id name="id" type="long">
    <column name="id" precision="22" scale="0" />
         <generator class="sequence-identity" >
             <param name="sequence">ID_SEQUENCES</param>
         </generator>
</id>

然后就报错如下：

Caused by: java.sql.SQLException: Unsupported feature
	at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:134)
	at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:179)
	at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:269)
	at oracle.jdbc.dbaccess.DBError.throwUnsupportedFeatureSqlException(DBError.java:689)
	at oracle.jdbc.driver.OracleConnection.prepareStatement(OracleConnection.java:3456)
	at org.jboss.resource.adapter.jdbc.WrappedConnection.prepareStatement(WrappedConnection.java:351)
	at org.hibernate.jdbc.AbstractBatcher.getPreparedStatement(AbstractBatcher.java:527)
	at org.hibernate.jdbc.AbstractBatcher.prepareStatement(AbstractBatcher.java:131)
	at org.hibernate.id.SequenceIdentityGenerator$Delegate.prepare(SequenceIdentityGenerator.java:99)
	at org.hibernate.id.insert.AbstractReturningDelegate.performInsert(AbstractReturningDelegate.java:54)

网上找了很多解决的办法

1：把ojdbc14.jar改成ojdbc6.jar 发现不行
2：配置hibernate.bhm.xml增加一个hibernate.jdbc.use_get_generated_keys为true/false 也不行

后来看了下HIBERNATE的自增长策略，
http://www.cnblogs.com/flyoung2008/articles/2165759.html

发现问题所在，修改成：

<id name="id" type="long">
    <column name="id" precision="22" scale="0" />
         <generator class="sequence" >
             <param name="sequence">ID_SEQUENCES</param>
         </generator>
</id>

因为XML是反向生成，而且是别人生成的，估计和版本是有关系的。