Cursor (druid-processing 28.0.1 API)

All Known Subinterfaces:

HistoricalCursor

All Known Implementing Classes:

ConcatCursor, FrameCursor, PostJoinCursor, RowBasedCursor, UnnestColumnValueSelectorCursor, UnnestDimensionCursor
```
public interface Cursor
```
Cursor is an interface for iteration over a range of data points, used during query execution. QueryableIndexCursorSequenceBuilder.QueryableIndexCursor is an implementation for historical segments, and IncrementalIndexStorageAdapter.IncrementalIndexCursor is an implementation for IncrementalIndex. Cursor is conceptually similar to TimeAndDimsPointer, but the latter is used for historical segment creation rather than query execution (as Cursor). If those abstractions could be collapsed (and if it is worthwhile) is yet to be determined.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`advance()`
`void`	`advanceUninterruptibly()`
`ColumnSelectorFactory`	`getColumnSelectorFactory()`
`org.joda.time.DateTime`	`getTime()`
`boolean`	`isDone()`
`boolean`	`isDoneOrInterrupted()`
`void`	`reset()`

Method Detail

getColumnSelectorFactory

ColumnSelectorFactory getColumnSelectorFactory()

getTime
```
org.joda.time.DateTime getTime()
```

advance
```
void advance()
```

advanceUninterruptibly
```
void advanceUninterruptibly()
```

isDone
```
boolean isDone()
```

isDoneOrInterrupted
```
boolean isDoneOrInterrupted()
```

reset
```
void reset()
```