SAP ABAP Data Element O2ITERATION (BSP Element: Iteration over Element Content)

Hierarchy

☛ SAP_BASIS (Software Component) SAP Basis Component
   ⤷ BC-BSP (Application Component) Business Server Pages
     ⤷ SBSP_DEVTAGLIB (Package) Development Environment Objects for Taglib Support

Basic Data

Data Element	O2ITERATION
Short Description	BSP Element: Iteration over Element Content

Data Type

Category of Dictionary Type	D	Domain
Type of Object Referenced		No Information
Domain / Name of Reference Type	CHAR1
Data Type	CHAR	Character String
Length	1
Decimal Places	0
Output Length	1
Value Table

Further Characteristics

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Parameter ID
Default Component name
Change document	☐
No Input History	☐
Basic direction is set to LTR	☐
No BIDI Filtering	☐

Field Label

	Length	Field Label
Short	10	Iteration
Medium	19	Iteration
Long	26	Iteration over Content
Heading	0

Documentation

Definition

Activate this option if the BSP element iterates over its content, that is implements a loop.

Use

You must also redefine the interface method DO_AT_ITERATION of the element handler class. In this method, which is executed at the end of an iteration, the return parameter RC controls whether the loop is ended(RC=CO_ELEMENT_DONE) or passed again(RC=CO_ELEMENT_CONTINUE).

Dependencies

Example

The <do> element is to run through its content as often as is specified in the "repeat" attribute:

<xyz:do repeat="10"> 
  Hello World! 
</xyz:do>

The implementation could read as follows (in the interface method DO_AT_BEGINNING, the "count" variable is to be initialized with the value of "repeat"):

METHOD IF_BSP_ELEMENT~DO_AT_ITERATION. 
  IF count <> 0. 
    SUBTRACT 1 FROM count. 
    rc = CO_ELEMENT_CONTINUE. 
  ELSE. 
    rc = CO_ELEMENT_DONE. 
  ENDIF. 
ENDMETHOD.

History

Last changed by/on	SAP	20040312
SAP Release Created in	620