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.
Type: | string |
Since: | 2.2 |
Required: | No |
Display Name: | AggregateOn Function |
JavaScript Type: | |
Default Value: | None |
Runtime Settable: | Yes |
Type: | list |
Since: | 2.2 |
Required: | No |
Display Name: | AggregateOn Expression |
JavaScript Type: | |
Default Value: | None |
Runtime Settable: | Yes |
Type: | List of AggregationArgument Structures |
Since: | 2.2 |
Required: | No |
Display Name: | AggregateOn Function Arguments |
JavaScript Type: | |
Default Value: | None |
Runtime Settable: | Yes |
Column data type property.
Type: | choice (columnDataType) |
Since: | 2.0 |
Required: | No |
Display Name: | Data Type |
JavaScript Type: | |
Default Value: | None |
Runtime Settable: | No |
Name | Display Name | Value | Description |
integer | Integer | integer | |
string | String | string | |
date-time | Date Time | date-time | |
decimal | Decimal | decimal | |
float | Float | float | |
boolean | Boolean | boolean | |
date | Date | date | |
time | Time | time | |
blob | Blob | blob | |
javaObject | Java Object | javaObject |
Column data type property.
Type: | string |
Since: | 2.2 |
Required: | No |
Display Name: | Column Display Name |
JavaScript Type: | |
Default Value: | None |
Runtime Settable: | No |
Type: | resourceKey |
Since: | 2.5 |
Required: | No |
Display Name: | Column Display Name ID |
JavaScript Type: | |
Default Value: | None |
Runtime Settable: | No |
The BIRT expression that defines the value of the computed column.
Type: | expression |
Context: | factory |
Expression Type: | any |
Since: | 1.0 |
Required: | No |
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.
Type: | expression |
Context: | |
Expression Type: | None |
Since: | 2.2 |
Required: | No |
Display Name: | Filter Expression |
JavaScript Type: | |
Default Value: | None |
Runtime Settable: | Yes |
The name of the computed column.
Type: | memberKey |
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.