SAP NEWS-620-CLASSES documentation, setup help and example usage

System Classes and Methods for Release 6.20

1 Class for calculating using time stamps
2 Class for editing lists
3 Error handling of exceptions
4 Methods for determining type properties


ABAP_MODIFICATION_1 Class for Calculating with Time Stamps

The class CL_ABAP_TSTMP has been introduced for calculating with time stamps
.


ABAP_MODIFICATION_2 Class for Editing Lists

For calculating output lengths, the conversion of values from the list buffer, and the definition of field groups, the class CL_ABAP_LIST_UTILITIES has been introduced. With the return values of their method, a correct column alignment for ABAP lists can be programmed - even wherever Eastern Asian scripts are output.

The objects of a list can be displayed in different output lengths by setting the required length in the menu System -> List -> Unicode Display . This is of particular advantage for screen lists in Unicode systems whose output was cut off - which is displayed by the characters ( or ).


ABAP_MODIFICATION_3 Error Handling of Exceptions

The interfaces IF_MESSAGE und IF_SERIALIZABLE_OBJECT have been included into the class CX_ROOT
, global superclass for all Exceptions . You edit texts from classes that implement these interfaces as message texts
. Using the method GET_LONG_TEXT , the appropriate long text belonging to an exception text is provided.


ABAP_MODIFICATION_4 Methods for Determining Type Properties

For determining type properties at runtime ( RTTI )
, two new methods have been introduced in the class CL_ABAP_DATADESCR .
The method IS_READ_ONLY
determines whether a reference data object is write-protected.
The method APPLIES_TO_DATA_REF executes a type check between the description and the data object. In this way, the compatibility of data objects can be determined.

Documentation extract taken from SAP system, � Copyright SAP AG. All rights reserved