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Home >Online Product Documentation >Table of Contents >IF Blocks IF BlocksIF blocks have a single input port, labeled condition; a Flow port; and two result ports: if then, and if else. You use IF blocks to compose if then, else XQuery expressions, such as the following: This expression, for example, was composed by mapping
l The title element in the source document to the IF block's input port.
l The if then result port to the Title element in the target structure.
l The if else result port to the ISBN element in the target structure.
IF blocks create a structure if the if then or if else branches are true. These ports can be connected to the target schema; otherwise they can be connected to Flow ports of FLWOR, function, and other IF blocks. |
XML PRODUCTIVITY THROUGH INNOVATION ™
