Cursor (apache-cassandra API)

```
public interface Cursor<K,V>
```
A Cursor can be used to traverse a Trie, visit each node step by step and make Cursor.Decisions on each step how to continue with traversing the Trie.

Nested Class Summary

Nested Classes
Modifier and Type Interface Description

static class Cursor.Decision
The Cursor.Decision tells the Cursor what to do on each step while traversing the Trie.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`Cursor.Decision`	`select(java.util.Map.Entry<? extends K,? extends V> entry)`	Called for each `Map.Entry` in the `Trie`.

- Method Detail
  - select
```
Cursor.Decision select(java.util.Map.Entry<? extends K,? extends V> entry)
```
    Called for each Map.Entry in the Trie. Return Cursor.Decision.EXIT to finish the Trie operation, Cursor.Decision.CONTINUE to go to the next Map.Entry, Cursor.Decision.REMOVE to remove the Map.Entry and continue iterating or Cursor.Decision.REMOVE_AND_EXIT to remove the Map.Entry and stop iterating. Note: Not all operations support Cursor.Decision.REMOVE.