Adler32
open class Adler32 : Checksum
| kotlin.Any | |
| ↳ | java.util.zip.Adler32 |
A class that can be used to compute the Adler-32 checksum of a data stream. An Adler-32 checksum is almost as reliable as a CRC-32 but can be computed much faster.
Passing a null argument to a method in this class will cause a NullPointerException to be thrown.
Summary
| Public constructors | |
|---|---|
Adler32()Creates a new Adler32 object. |
|
| Public methods | |
|---|---|
| open Long |
getValue()Returns the checksum value. |
| open Unit |
reset()Resets the checksum to initial value. |
| open Unit |
Updates the checksum with the specified byte (the low eight bits of the argument b). |
| open Unit |
Updates the checksum with the specified array of bytes. |
| open Unit |
Updates the checksum with the specified array of bytes. |
| open Unit |
update(buffer: ByteBuffer!)Updates the checksum with the bytes from the specified buffer. |
Public constructors
Public methods
getValue
open fun getValue(): Long
Returns the checksum value.
| Return | |
|---|---|
Long |
the current checksum value |
update
open fun update(b: Int): Unit
Updates the checksum with the specified byte (the low eight bits of the argument b).
| Parameters | |
|---|---|
b |
Int: the byte to update the checksum with |
update
open fun update(
b: ByteArray!,
off: Int,
len: Int
): Unit
Updates the checksum with the specified array of bytes.
| Parameters | |
|---|---|
b |
ByteArray!: the byte array to update the checksum with |
off |
Int: the start offset of the data |
len |
Int: the number of bytes to use for the update |
| Exceptions | |
|---|---|
java.lang.ArrayIndexOutOfBoundsException |
if off is negative, or len is negative, or off+len is negative or greater than the length of the array b. |
update
open fun update(b: ByteArray!): Unit
Updates the checksum with the specified array of bytes.
| Parameters | |
|---|---|
b |
ByteArray!: the byte array to update the checksum with |
| Exceptions | |
|---|---|
java.lang.NullPointerException |
if b is null |
update
open fun update(buffer: ByteBuffer!): Unit
Updates the checksum with the bytes from the specified buffer. The checksum is updated with the remaining bytes in the buffer, starting at the buffer's position. Upon return, the buffer's position will be updated to its limit; its limit will not have been changed.
| Parameters | |
|---|---|
buffer |
ByteBuffer!: the ByteBuffer to update the checksum with |
| Exceptions | |
|---|---|
java.lang.NullPointerException |
if buffer is null |