Reference Path to Deeper Context
Nodes
If you require access to a node that is a few levels below the root node in the context tree structure, there are two possibilities. The graphic below depicts the structure situation of the context again. The context node to process with the program is SubNode_21.
1st Variant
You can repeat the process outlined in Direct Reference to a Context Node step by step until you 'reach' the required node.
method EXAMPLE .
data: l_node type ref to IF_WD_CONTEXT_NODE, l_snode_11 type ref to IF_WD_CONTEXT_NODE, L_snode_21 type ref to IF_WD_CONTEXT_NODE.
l_node = wd_context->get_child_node( wd_this->wdctx_node_1 ). l_snode_11 = l_node->get_child_node( wd_this->wdctx_subnode_11 ). l_snode_21 = l_snode_11->get_child_node( wd_this->wdctx_subnode_21 ). . . . . . . . . .
endmethod.
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2nd Variant
You can use the PATH_GET_NODE method to reference the required subnode.
method EXAMPLE .
data: l_snode_21 type ref to IF_WD_CONTEXT_NODE.
l_snode_21 = wd_context->path_get_node( 'NODE_1.SUBNODE_11.SUBNODE_21' ). . . . . . . . . .
endmethod.
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This formulation can be varied depending on which attribute in the method is already known at the time of the call of PATH_GET_NODE.
method EXAMPLE .
data: l_node type ref to IF_WD_CONTEXT_NODE, l_snode_21 type ref to IF_WD_CONTEXT_NODE.
. . . . . . . . .
l_snode_21 = l_node->path_get_node( 'SUBNODE_11.SUBNODE_21' ). . . . . . . . . .
endmethod.
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You cannot formulate the use of the
PATH_GET_NODE using constants. You must make sure that you get the node
name exactly right, since errors are not picked up by the syntax check.