LedgersIterator (Apache BookKeeper :: Parent 4.18.0-SNAPSHOT API)

```
public interface LedgersIterator
```
Iterator for ledgers.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`boolean`	`hasNext()`	Return true if there is at least one ledger to visit.
`long`	`next()`	Return next ledger id.

- Method Detail
  - hasNext
```
boolean hasNext()
         throws java.io.IOException
```
    Return true if there is at least one ledger to visit.
    
    Returns:
    
    true if there is at least one ledger to visit.
    
    Throws:
    
    java.io.IOException - thrown when there is a problem accessing the ledger metadata store.
  - next
```
long next()
   throws java.io.IOException
```
    Return next ledger id.
    
    Returns:
    
    next ledger id.
    
    Throws:
    
    java.io.IOException - thrown when there is a problem accessing the ledger metadata store.