Spry User Guide - Support - Adobe

The following example is the DOM-tree representation of the selected nodes.
The data set then flattens the set of nodes into a tabular format, which the following table represents.
@path @width @height
sun.jpg 16 16
tree.jpg 16 16
surf.jpg 16 16
In this instance, Spry derives the column names of the flattened table from the selected nodes and their attributes.
The way Spry determines column names, however, can vary, depending on the XPath you specify.
Spry uses the following guidelines when flattening data and creating columns:
SPRY
User Guide
• If the selected node has attributes, Spry creates a column for each attribute and places the value of the attribute in
that column. The names for these columns are the names of the attributes preceded by an @ sign. For example, if
a node has an id attribute, the column name is @id.
• If the selected node has no element children, and has text or CDATA underneath it, then Spry creates a column
and places that text or CDATA in that column. The name of this column is the tag name of the node for normal
XML elements.
• If the selected node has element children, Spry creates a column for the value of each element and its attributes,
but only for each element child that has no element children of its own. The names of the columns are the tag names
of the children elements, or in the case of an attribute on a child element, the format "child-
TagName/@attrName".
• If the selected node is an attribute, Spry creates a column for the attribute, and the column name is the name of
the attribute preceded by an @ sign.
• Spry ignores element children that have their own element children.
TheexamplesthatfollowprovidemoredetailsontheflatteningprocessandhowSprygeneratescolumnnamesfor
data sets.
95