creating-an-abap-class-with-interfaces-if-apj-dt-exec-object-and-if-apj-rt-exec-object-767ef7b.md

Creating an ABAP Class with Interfaces IF_APJ_DT_EXEC_OBJECT and IF_APJ_RT_EXEC_OBJECT

Find out how to run business logic in an application job using an ABAP class that implements interfaces IF_APJ_DT_EXEC_OBJECT and IF_APJ_RT_EXEC_OBJECT.

Note:

Note that this is a legacy interface. Don't use it for new developments. If you use this interface, you only have limited options during the editing of the job catalog entry.

If you want to run the business coding of your application in an application job, you can create an ABAP class which implements the interfacesIF_APJ_DT_EXEC_OBJECT and IF_APJ_RT_EXEC_OBJECT and put the coding into this class. It's not recommended to use this possibility for new developments, because it offers limited functionality only.

The interface IF_APJ_DT_EXEC_OBJECT contains the following method:

• GET_PARAMETERS: This method is called by the application job framework to get all selection parameters. The method returns two internal tables:

  • ET_PARAMETER_DEF: Determines the parameter list which is used by the job catalog entry that refers to this main class. It also defines how the parameters are displayed and how they behave on the selection screen

  • ET_PARAMETER_VAL: Determines the default values for these parameters in a newly created job template that refers to the job catalog entry mentioned above

The structure of table ET_PARAMETER_DEF has the following fields:

Field Name	Definition
SELNAME	Name of the parameter. The length of the name is restricted to 8 characters. It defines the parameter name which is used in the job catalog entry and in the job template
KIND	Defines whether a single value or a value range can be entered on the selection screen for this parameter. Possible values are: IF_APJ_DT_EXEC_OBJECT=>PARAMETER for a single value parameter IF_APJ_DT_EXEC_OBJECT=>SELECT_OPTION for a value range parameter
DATATYPE	The data type of the parameter. It must be an elementary data type, like C or CHAR
LENGTH	The output length of the parameter if the data type has no fixed length
DECIMALS	Number of decimals if the data type belongs to a number with decimals
COMPONENT_TYPE	Not supported
SECTION_TEXT	Not used
GROUP_TEXT	Not used
PARAM_TEXT	The title of the parameter which is displayed on the selection screen
LOWERCASE_IND	Defines whether lower case characters are allowed for the parameter
HIDDEN_IND	Defines whether the parameter is hidden on the selection screen
CHANGEABLE_IND	If set to ABAP_FALSE, the read-only flag is set for this parameter if the parameter is added to a catalog entry
MANDATORY_IND	Defines whether the parameter is mandatory on the selection screen
CHECKBOX_IND	If set, the parameter is displayed as checkbox on the selection screen
LIST_IND	If set, the parameter is displayed as list box on the selection screen
RADIO_GROUP_IND	If set, the parameter is displayed as radio button on the selection screen
RADIO_GROUP_ID	Name of the radio button group if the parameter is a radio button

The structure of the table ET_PARAMETER_VAL has the following fields:

Field Name	Definition
SELNAME	Name of the parameter. It's the same name that was used in table ET_PARAMETER_DEF
KIND	Defines whether a single value or a value range can be entered on the selection screen for this parameter. It should be the same value that was used in table ET_PARAMETER_DEF
SIGN, OPTION, LOW, HIGH	Entry of a ranges table which contains the parameter value, or a parameter value range

The interface IF_APJ_RT_EXEC_OBJECT contains the following method:

• EXECUTE: This method is called by the application job framework when the scheduled job is run. It receives the internal table IT_PARAMETERS as parameter. This internal table contains all parameter values that you entered on the selection screen when you scheduled the job.

The structure of table IT_PARAMETERS has the following fields:

Field Name	Definition
SELNAME	Name of the parameter. It's the same name that was used in method GET_PARAMETERS
KIND	If you've defined the parameter as a single value parameter in method GET_PARAMETERS, it's set to IF_APJ_DT_EXEC_OBJECT=>PARAMETER. Otherwise, it's set to IF_APJ_DT_EXEC_OBJECT=>SELECT_OPTION
SIGN, OPTION, LOW, HIGH	Entry of a ranges table which contains the parameter value, or a parameter value range

Note:

If you've selected several value ranges for a parameter on the selection screen, the table IT_PARAMETERS contains one entry for each value range.