hibernate中自定义主键生成器[2]

public void configure(Type type Properties params Dialect d) throws MappingException {

String table = paramsgetProperty(table);

if (table==null) table = paramsgetProperty(PersistentIdentifierGeneratorTABLE);

String column = paramsgetProperty(column);

if (column==null) column = paramsgetProperty(PersistentIdentifierGeneratorPK);

String schema = paramsgetProperty(PersistentIdentifierGeneratorSCHEMA);

sql = select max(+column +) from + ( schema==null ? table : schema + + table );

loginfo(sql);

}

private void getNext(Connection conn) throws HibernateException {

try {

PreparedStatement st = connprepareStatement(sql);

ResultSet rs = stexecuteQuery();

if ( rsnext() ) {

next = rsgetLong() + ;

}

else {

next = l;

}

}catch(SQLException e)

{

throw new HibernateException(e);

}

finally {

try{

connclose();

}catch(SQLException e)

{

throw new HibernateException(e);

}

}

}

}

配置:

在对应的hbm文件里面将id的配置如下:

<id name=id type=long column=id >

<generator class=hibernateIncrementGenerator />

</id>

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