Expressions

OSI expressions allow expressing methods in a script language. Expressions allow defining views as embedded OQL statements.

OSI expressions allow defining sections as ERROR or FINAL section, which provide additional features to process control. When an expression requires local variable definition, a VARIABLE section is required at the beginning of the expression, which contains variable definitions (member), which are described in"Independent variables". Each section except the VARIABLE section consists of any number OSI statements (statement). OSI statements are documented in chapter "Statements".