Select from the Part, Variables, Functions, and Operators pick lists to create a query in the Query text box. Select an expression language to use for the current expression.
A copy operation in an assign activity can contain an XPath (or other selected language) query attribute that results in a string, number, or Boolean. The value of the query attribute is a query string that identifies a single value within a source or target variable part.
The Query Builder dialog is similar to the Expression Builder dialog, with the addition of a Variable Part tree for easy selection of parts.
For details on XPath syntax, see the XPath specification at
http://www.w3.org/TR/xpath.
To build a query:
In the Properties view for an assign activity, select Copy operations.
In the Copy Operations dialog, select Variable from the Type field.
If desired, for easier query building, select a Part.
Click
Query Builder
.
If needed, select the
Dialog (...) Button
in the Query Language field to select a different query language URI that non-Process Developer engines support. Do the following:
In the Query Language dialog (or in the Properties view of the BPEL process), type in a different URI for a non-Process Developer configured language. The URI is ignored by Process Developer.
To restore the default, clear the URI and click
OK
.
Select the variable parts, functions and operators from the boxes to build a query, following these tips: