ACKBitfield (I2P Anonymous Network - Java Documentation - Version 1.5.0)

```
interface ACKBitfield
```
Generic means of SACK/NACK transmission for partially or fully received messages

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`int`	`ackCount()`	Number of fragments acked in this bitfield.
`int`	`fragmentCount()`	how many fragments are covered in this bitfield?
`long`	`getMessageId()`	what message is this partially ACKing?
`int`	`highestReceived()`	Highest fragment number acked in this bitfield.
`boolean`	`received(int fragmentNum)`	has the given fragment been received?
`boolean`	`receivedComplete()`	has the entire message been received completely?

- Method Detail
  - getMessageId
```
long getMessageId()
```
    what message is this partially ACKing?
  - fragmentCount
```
int fragmentCount()
```
    how many fragments are covered in this bitfield?
  - received
```
boolean received(int fragmentNum)
```
    has the given fragment been received?
  - receivedComplete
```
boolean receivedComplete()
```
    has the entire message been received completely?
  - ackCount
```
int ackCount()
```
    Number of fragments acked in this bitfield. Faster than looping through received()
    
    Since:
    
    0.9.16
  - highestReceived
```
int highestReceived()
```
    Highest fragment number acked in this bitfield.
    
    Returns:
    
    highest fragment number acked, or -1 if none
    
    Since:
    
    0.9.16