public class RollingColumn extends Object
| Modifier and Type | Field and Description |
|---|---|
protected Column<?> |
column |
protected int |
window |
| Constructor and Description |
|---|
RollingColumn(Column<?> column,
int window) |
| Modifier and Type | Method and Description |
|---|---|
<INCOL extends Column<?>,OUT> |
calc(AggregateFunction<INCOL,OUT> function) |
protected String |
generateNewColumnName(AggregateFunction<?,?> function) |
protected final Column<?> column
protected final int window
public RollingColumn(Column<?> column, int window)
protected String generateNewColumnName(AggregateFunction<?,?> function)
public <INCOL extends Column<?>,OUT> Column<?> calc(AggregateFunction<INCOL,OUT> function)
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