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Mixed Node


Can any body explain about mxed node in sap-crm?



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  • Posted on Jan 07, 2014 at 01:36 PM


    A mixed node would contain both value node & model node. Sometimes we need to have a node which can contain some fields which we don't need to persist. For e.g. if you have provided your date of birth , then persisting age is of no use. We can calculate it from your DOB , hence we can have DOB as model field of a model node & show age as value field of a value attribute. Yes I have taken a simple example but there could be a scenario which drives this.

    How to access Mix node

    DATA: lr_mixed_node TYPE REF TO cl_bsp_wd_mixed_node,

    lr_model_node TYPE REF TO if_bol_bo_property_access,

    lr_value_node TYPE REF TO if_bol_bo_property_access.

    IF iterator IS BOUND.

    current = iterator->get_current( ).


    current = collection_wrapper->get_current( ).


    lr_mixed_node ?= current.

    lr_model_node ?= lr_mixed_node->if_bsp_wd_ext_property_access~get_model_node( ).

    ANd from lr_model_node entity you can read the attributes you want from model node.

    Similarly get value node using get_value_node method .

    More sample code:


    lr_mixed TYPE REF TO cl_bsp_wd_mixed_node,

    lr_entity TYPE REF TO cl_crm_bol_entity,

    lr_child TYPE REF TO cl_crm_bol_entity.

    lr_mixed = me->typed_context->node_name->collection_wrapper->get_current( ).

    lr_entity ?= lr_mixed->if_bsp_wd_ext_property_access~get_model_node( ).

    lr_child ?= lr_entity->get_related_entities( ).



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  • Posted on Dec 27, 2013 at 09:05 AM

    Hi Suresh,

    We have to types of context nodes, Value node and Model node.

    so, context node can be a type model node or value node depends on how we have created.

    Mixed node will come into picture when we try to retrieve data from context node like

    me->typed_context->CONTEXTNODE->collection_wrapper->get_current( ), now the returning parameter will be if_bol_bol_property_access.

    for suppose we need to access the returned parameter as model_node then,

    We apply Mixed_node->get_model_node... like

    If we know it is a value node then,

    mixed_node->get_value_.node... like..

    Finally, mixed node can hold both value node and model node...



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