Eclipse BIRT Report Object Model (ROM)
ComputedColumn Structure
Display Name: | Computed Column |
Since: | 1.0 |
A computed column is a user-defined column produced as an expression of other columns within the data set. It is not one of the columns retrieved directly from the underlying data provider.
Column data type property.
Type: | choice (columnDataType) |
Since: | 2.0 |
Required: | No |
Display Name: | Data Type |
JavaScript Type: | |
Default Value: | any |
Runtime Settable: | No |
Name | Display Name | Value | Description |
any | Any | any | |
integer | Integer | integer | |
string | String | string | |
date-time | Date Time | date-time | |
decimal | Decimal | decimal | |
float | Float | float | |
structure | Structure | structure | |
table | Table | table |
Column data type property.
The BIRT expression that defines the value of the computed column.
Type: | expression |
Context: | factory |
Expression Type: | any |
Since: | 1.0 |
Required: | Yes |
Display Name: | Expression |
JavaScript Type: | |
Default Value: | None |
Runtime Settable: | No |
The expression that gets evaluated and its resulting value assigned to the computed column.
The name of the computed column.
Type: | string |
Since: | 1.0 |
Required: | Yes |
Display Name: | Column Name |
JavaScript Type: | |
Default Value: | None |
Runtime Settable: | No |
The name of the computed column and is required. The name must be unique within the result set.
The Result Column Names section for the naming rules.