This page documents the available keys for Appcontext() Parameters.
| Component|| Key|| Usage|
| JDBC Datasource (org.eclipse.birt.report.data.oda.jdbc)|| IConnectionFactory.DRIVER_CLASSPATH|| Can be used to manually set the driver classpath that the JDBC plugin uses to locate a driver. |
| IConnectionFactory.PASS_IN_CONNCTION|| Can be used to manually pass in a JDBC connect to be used by the JDBC plugin.|
| IConnectionFactory.CLOSE_PASS_IN_CONNECTION|| Manually set whether the JDBC connections is closed after usage by the plugin. Defaults to true.|
| XML Data Source (org.eclipse.datatools.enablement.oda.xml)|| Constants.APPCONTEXT_INPUTSTREAM|| Sets the InputStream for an XML Datasource. Example ByteArrayInputStream.|
| Constants.APPCONTEXT_CLOSEINPUTSTREAM|| Close XML InputStream after it is used.(true or false)|
Data Engine (org.eclipse.birt.data.engine.api)
This settings allows user to cache a data set in disk. If set to negative value, all rows in dataset will be cached. If set to zero, the function is disabled. If set to positive number, specific number of rows will be cached. Should only be used in a design situation.
Change setting to clear.
| DataEngine.MEMORY_BUFFER_SIZE|| Memory per Query that is used before caching to disk. Defaults to 10MB. Used inside and outside of designer.|
This setting allows user to cache a data set in memory. If Set to a number equal or less than zero, the function is disabled. If set to a positive number, exactly that number of rows will be saved to memory. Should only be used in a design situation.
Change setting to clear
| Report Engine (org.eclipse.birt.report.engine.api)|| EngineConstants.APPCONTEXT_BIRT_VIEWER_HTTPSERVET_REQUEST|| Used to load the request object into the scripting context for use in report scripting.|
| EngineConstants.APPCONTEXT_CLASSLOADER_KEY|| Used to set the parent classloader for the report engine|
| EngineConstants.APPCONTEXT_CHART_RESOLUTION|| Used to set the chart resolution in dpi. Defaults to 96 dpi.|
| EngineConstants.PROPERTY_EXTENDED_ITEM_MAX_ROW|| Max number of rows a chart report item will process. Defaults to 0 meaning no limit.|
| EngineConstants.WEBAPP_CLASSPAH_KEY|| Additional classpath setup internally for viewer. Can be used by API.|
| EngineConstants.WORKSPACE_CLASSPATH_KEY|| Additional classpath setup internally for workspace. Can be used by API.|
| EngineConstants.PROJECT_CLASSPATH_KEY|| Additional classpath setup internally for project. Can be used by API.|