Sequence Operations
Gatherers that reorder, combine, or manipulate the sequence of elements.
Gatherers
| Function | Description |
|---|---|
| crossWith() | Cross every element of the input stream with every element of the given source, emitting them to the output stream as a Pair<INPUT, CROSS>. |
| foldIndexed() | Perform a fold over every element in the input stream along with its index |
| interleaveWith() | Creates a stream of alternating objects from the input stream and the argument source |
| mapIndexed() | Perform a mapping operation given the element being mapped and its zero-based index |
| orderByFrequency() | Emit elements in the input stream ordered by the specified frequency. |
| peekIndexed() | Peek at each element of the stream along with its zero-based index |
| repeat() | Repeatedly emit the input stream to the output stream a given number of times. |
| repeatInfinitely() | Repeatedly emit the input stream to the output stream, infinitely. |
| reverse() | everse the order of the input stream. |
| rotate() | Consume the entire stream and emit its elements rotated either left or right distance number of spaces |
| scanIndexed() | Perform a scan over every element in the input stream along with its index |
| shuffle() | Shuffle the input stream into a random order. |
| throttle() | Limit the number of elements in the stream to some number per period. When the limit is reached consumption is paused until a new period starts and the count resets. |
| withIndex() | Maps all elements of the stream as-is along with their 0-based index. |
| zipWith() | Creates a stream of Pair<FIRST,SECOND> objects whose values come from the input stream and the source of arguments provided |
| zipWithNext() | Creates a stream of List objects which contain each two adjacent elements in the input stream. |