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Expression	Description
file:name	refers to the file name
file:name.noext	refers to the file name with no extension
file:parent	refers to the file parent
file:path	refers to the file path
file:absolute	refers to the absolute file
file:canonical.path	refers to the canonical path
data:command:pattern	for date formatting using the `java.text.SimepleDataFormat` patterns. Supported commands are: now for current timestamp, file for the last modified timestamp of the file. in.header.xxx or header.xxx to use the Date object in the IN header with the key xxx. out.header.xxx to use the Date object in the OUT header with the key xxx.
bean:bean expression	invoking a bean expression using the Bean language.
simple:simple expression	to invoke the simple expression, however simple: can be omitted as this language extends the simple language

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Code Block
expression="../backup/${date:now:yyyyMMdd}/type-${in.header.type}/backup-of-${file:name.noext}.bak"

If you have a custom Date you want to use in the expression then Camel supports retrieving dates from the message header.

Code Block
expression="orders/order-${in.header.customerId}-${date:in.header.orderDate:yyyyMMdd}.xml"

And finally we can also use a bean expression to invoke a POJO class that generates some String output (or convertible to String) to be used:

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