CL_ABAP_GZIP_TEXT_STREAM - Class for Text Compression (GZIP, Streaming)

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Functionality

The methods of this class enable you to use GZIP to compress texts (in C fields or strings) portion by portion.

• CONSTRUCTOR

• SET_OUT_BUF

Makes an output buffer available.

• GZIP_TEXT_STREAM

Transfer of text segments to be compressed

• GZIP_TEXT_STREAM_END

Last transfer and completion of compression

When the output buffer is filled, a callback method is called. This method must implement the method use_out_buf of the interface IF_ABAP_GZIP_TEXT_HANDLER.

Relationships

Example

CLASS user_outbuf DEFINITION.
  PUBLIC SECTION.
    INTERFACES if_abap_gzip_text_handler.
ENDCLASS.

CLASS user_outbuf IMPLEMENTATION.
  METHOD if_abap_gzip_text_handler~use_out_buf.
.... handle out buffer ...
  ENDMETHOD.
ENDCLASS.

DATA: uref       TYPE REF TO user_outbuf.

CREATE OBJECT uref.

CREATE OBJECT csref
   EXPORTING  CONVERSION      = 'DEFAULT'
              OUTPUT_HANDLER  = uref.

CALL METHOD  csref->compress_text_stream
    EXPORTING  TEXT_IN        = intext1   " some text
               TEXT_IN_LEN    = -1.

CALL METHOD  csref->compress_text_stream_end
    EXPORTING  TEXT_IN       = intext2   " some more text
               TEXT_IN_LEN    = -1.

Notes

Further information

For further information, refer to the individual methods.

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