Project: talendesb
Issue TESB-2321: Pure Java Language code expressions support
Currently the component exporessions can be XPath, EL, javascript or XQuery, but no pure java codes. For example, the MessageFitler needs an expression. If the "Header" type in Language combo is selected, then expression need to be "username").isEqualTo("name" Maybe it's better if the expression is header("username").isEqualTo("name)" in Language "Pure Java".
Story points: 3