org.eclipse.birt.data.engine.api
Interface IComputedColumn

All Known Implementing Classes:

ComputedColumn

public interface IComputedColumn

Describes a computed column defined for a data set, or a report query. A computed column has a name, and an JavaScript expression used to caculate value of the column.

Method Summary

java.util.List	getAggregateArgument()
IScriptExpression	getAggregateFilter() Return the filter of this computed column iff it is an aggregation.
java.lang.String	getAggregateFunction() Return the aggregation function.
int	getDataType() Gets the data type of the computed column.
IBaseExpression	getExpression() Gets the expression of the computed column
java.lang.String	getName() Gets the name of the computed column

Method Detail

getName

java.lang.String getName()

Gets the name of the computed column

getExpression

IBaseExpression getExpression()

Gets the expression of the computed column

getDataType

int getDataType()

Gets the data type of the computed column.

Returns:

Data type as an integer.

getAggregateFunction

java.lang.String getAggregateFunction()

Return the aggregation function.

Returns:

getAggregateFilter

IScriptExpression getAggregateFilter()

Return the filter of this computed column iff it is an aggregation.

Returns:

getAggregateArgument

java.util.List getAggregateArgument()