Instance method call

Unlike a static method When calling an instance method of a class it needs you to create and instace of that class before calling it, i.e. by the use of the 'REF TO' statement. The below example demonstrates how to call the instance method GET_CHILD_NODE of class IF_WD_CONTEXT_NODE.

Call instance method
data:    WD_CONTEXT   type ref to IF_WD_CONTEXT_NODE.
data:    child_node   type ref to if_wd_context_node.
child_node = wd_context->get_child_node( name = 'LOGON').

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