Question

I’m trying to run jasper reports against a live and reporting database, but any reports run against the live database throw exceptions about not finding the right tables (although the default PUBLIC schema is found). It looks like the main DataSource connection isn’t honoring the H2 connection settings which specify IGNORECASE=true, as the generated columns and tables are capitalized, by my queries are not.

DataSource.groovy dataSource:

dataSource {
    hibernate {
        cache.use_second_level_cache = false
        cache.use_query_cache = false
    }

    dbCreate = "create-drop" // one of 'create', 'create-drop','update'
    pooled = true
    driverClassName = "org.h2.Driver"
    username = "sa"
    password = ""
    url = "jdbc:h2:mem:testDb;MODE=PostgreSQL;IGNORECASE=TRUE;DATABASE_TO_UPPER=false"
    jndiName = null
    dialect = null 
}

Datasources.groovy dataSource:

datasource(name: 'reporting') {
    environments(['development', 'test'])
    domainClasses([SomeClass])
    readOnly(false)
    driverClassName('org.h2.Driver')
    url('jdbc:h2:mem:testReportingDb;MODE=PostgreSQL;IGNORECASE=TRUE;DATABASE_TO_UPPER=false')
    username('sa')
    password('')
    dbCreate('create-drop')
    logSql(false)
    dialect(null)
    pooled(true)
    hibernate {
        cache {
            use_second_level_cache(false)
            use_query_cache(false)
        }
    }
}

What fails:

JasperPrint print = JasperFillManager.fillReport(compiledReport, params,dataSource.getConnection())

While debugging, the only difference I’ve found is that the live dataSource, when injected or looked up with DatasourcesUtils.getDataSource(null), is a TransactionAwareDatasourceProxy, and DatasourcesUtils.getDataSource('reporting') is a BasicDataSource

What do I need to do for Jasper to operate on the active in-memory H2 database?

This failure is not reproducible against a real postgres database.

Answer 1

Just don’t run reports against in-memory datasources, and this won’t be an issue.