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ABAP_SXML - Object-Oriented Rendering Just as in token-based rendering, object-oriented rendering creates an XML writer. The nodes are not written, however, using a separate method for each node type, but using a single method, WRITE_NODE. This method is linked with a node object with the required node type using its input parameters and a corresponding node is appended to the current write position. ITOC
Basic Approach As in token-based rendering, the XML writer is created using the factory method CREATE of the required class, for example: DATA(writer) = CAST if_sxml_writer( cl_sxml_string_writer=>create( ... ) ). Before the node object is written, it can be created using one of the dedicated methods of the interface IF_SXML_READER, such as NEW_OPEN_ELEMENT, NEW_CLOSE_ELEMENT, and NEW_VALUE or it can be taken from another source, such as an object-oriented read, for example: DATA(open_element) = writer->new_open_element( ... ). writer->write_node( open_element ). DATA(value) = writer->new_value( ). value->set_value( ... ). writer->write_node( value ). DATA(close_element) = writer->new_close_element( ... ). writer->write_node( close_element ). The node object of an element opening has methods that can be used to insert XML attributes.
Methods for Object-Oriented Rendering The following methods of the interface IF_SXML_WRITER are designed specifically for object-oriented rendering:
NEW_OPEN_ELEMENT - Creates a node object for an element opening.
NEW_VALUE - Creates a node object for a character-like value.
NEW_VALUE_RAW - Creates a node object for byte-like raw data.
NEW_CLOSE_ELEMENT - Creates a node object for an end of element.
WRITE_NODE - Creates a node in accordance with the passed node object. The values are written as in token-based rendering.
Latest notes:
Token-based rendering and object-oriented rendering are not strictly separated. The corresponding methods for writing nodes can be called alternately in the same program. This is not recommended, however, for reasons of readability.
In object-oriented rendering, node objects can be written directly that were returned by an object-oriented parser and possibly modified.
Object-oriented rendering can demonstrate poorer performance than token-based rendering due to the extra objects that are created. NON_V5_HINTS ABAP_HINT_END
