我正在使用Datenwerke ReportServer。我试图通过DJBC使用Caché来源。 Here is a blog post from them on adding additional databases。不幸的是,我并不完全理解它。我把JDBC文件放在正确的位置,并为Caché创建了一个groovy脚本。问题与奇怪的Query Wrapper有关。我可以通过的ReportServer UI成功测试数据源,但是当我试图执行一个简单的查询,我得到以下错误:Datenwerke ReportServer,添加自定义数据源时遇到问题(Caché)
Error
Query could not be prepared: Error preparing statement for executing the report query : SELECT * FROM (SELECT * FROM (SELECT TOP 10 * FROM HS_IHE_ATNA_Repository.Aggregation) wrappedQry) limitQry LIMIT 50 OFFSET 0 /* token: 6aab148a-927b-45d5-9dfd-724788e139ca / / currentuser: 3 */
cache.groovy
package databasehelper;
import net.datenwerke.rs.scripting.service.scripting.scriptservices.GlobalsWrapper;
import net.datenwerke.rs.base.service.dbhelper.DatabaseHelper
import net.datenwerke.rs.base.service.dbhelper.hooks.DatabaseHelperProviderHook
import net.datenwerke.rs.base.service.dbhelper.queries.Query
import net.datenwerke.rs.base.service.dbhelper.querybuilder.ColumnNamingService
import net.datenwerke.rs.base.service.dbhelper.querybuilder.QueryBuilder
class Cache extends DatabaseHelper {
public static final String DB_NAME = "Cache";
public static final String DB_DRIVER = "com.intersys.jdbc.CacheDriver";
public static final String DB_DESCRIPTOR = "DBHelper_Cache";
@Override
public String getDescriptor() {
return DB_DESCRIPTOR;
}
@Override
public String getDriver() {
return DB_DRIVER;
}
@Override
public String getName() {
return DB_NAME;
}
@Override
public String createDummyQuery() {
return 'SELECT * FROM HS_IHE_ATNA_Repository.Aggregation'
}
}
def HOOK_NAME = "DATASOURCE_HELPER_Cache"
def callback = [
provideDatabaseHelpers : {
return Collections.singletonList(new Cache());
}
] as DatabaseHelperProviderHook;
GLOBALS.services.callbackRegistry.attachHook(HOOK_NAME, DatabaseHelperProviderHook.class, callback)
似乎是一个铁打在这里张贴这一点,尤其是
可悲的是我提出的,但我很欣赏的职位,将在希望接受它可以帮助别人的未来:) –
@ ScottBeeson是的。这是希望。我明白问题提出后两个月,你可能不需要答案:-) – adaptun