Advanced data sources require advanced knowledge and skills, so only a high-level overview of each Advanced data source is given in this section.
JDBC Custom
This is much like a standard JDBC connection, except you create a formula-based query through the Master Report's Attributes pane instead. See the Query attribute reference for more information.
Scriptable
Select your language, then add a query by clicking the round green + button, give your query a name, then type in your script in the Query field.
Java Method Invocation
Once added, you create a query (which involves calling the specified Java class) through the Master Report's Attributes pane. See the example below for more details on query syntax.
Named Java Method Invocation
Click the round green + button to add a query, type in a name in the Query Name field, then provide the method you want to use, plus any optional parameters. See the example below for more details on query syntax.
External
This data source is used when a report (.prpt — simple reporting component) is used in an .xaction. In the report, you must specify the result-set name for the "query name" attribute on the report. Also, you must add a report parameter using the same name as the result-set name and set the parameter to the tablemodel parameter type. The .xaction result-set can be MQL, SQL, MDX or JavaScript.
org.pentaho.reporting.engine.classic.core.modules.misc.datafactory.StaticDataFactorySample#createSubQuery(${Var1})
