By default, the server side expression editor includes a drop-down
list that has the following values:
- Constant
- String, Number, Boolean and NLS types are supported.
- Expression
- To define expressions with one or two operands. These operands
can be constants, expressions, functions or context values. An expression
supports arithmetic, comparison and boolean operands. Validation is
performed when building the expression and in case it is not correct,
a message is displayed. The expression can be used in nesting way.
- Context
- The context view includes a combo box with a context set. When
a context is selected from the combo, the corresponding data context
is shown in the view.
- Global Function
- The global functions are organized in different categories and
multiple functions are provided in each category. To initiate one
function, the value of all the function parameters must be specified.
The value can be set using the expression editor. The customization
of project-specific functions is supported. For more information on
creating project-specific functions, see Creating and registering a global function.