Database Reference
In-Depth Information
In the sample BPEL process being shown in the preceding screenshot, input data
from an input string is being copied to an output string using the
concat
function of
XPath.
XPath
is language for navigating through elements and attributes in an XML docu-
ment and finding information within an XML document. The syntax of XPath's
con-
cat
function is as follows:
fn:concat(string,string,...)
It returns the concatenation of the strings. For example,
con-
cat("My","first","XPATH function!")
gives the output as
My first
XPATH function
.
While copying the value of an input string to an output string, use the
concat
func-
tion of XPath to combine the strings together to manipulate the data. The
Assign
activities in BPEL build the XPath queries.
