CRC64Checksum (BioJava-1.7.1 API)

java.lang.Object
- org.biojavax.utils.CRC64Checksum

All Implemented Interfaces:

java.util.zip.Checksum
```
public class CRC64Checksum
extends java.lang.Object
implements java.util.zip.Checksum
```
Utility class that calculates a CRC64 checksum on a stream of bytes. Code was based on some from BioPerl. Note that we use longs then cast them to avoid the lack of an unsigned int in Java. Longs are 64-bit but we are only using the bottom 32 bits. An int is 32-bit but encodes sign so we can get amusing results if we don't allow for this.

Since:

1.5

Author:

Unknown. Copied from Expasy4J for convenience. See http://dev.isb-sib.ch/projects/expasy4j/

Constructor Summary

Constructors
Constructor Description

CRC64Checksum()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`long`	`getValue()`
`void`	`reset()`
`java.lang.String`	`toString()`	Returns a zero-padded 16 character wide string containing the current value of this checksum in uppercase hexadecimal format.
`void`	`update(byte[] b, int offset, int length)`
`void`	`update(int b)`
`void`	`update(java.lang.String s)`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.zip.Checksum
update, update

- Constructor Detail
  - CRC64Checksum
```
public CRC64Checksum()
```
- Method Detail
  - update
```
public void update(int b)
```
    Specified by:
    
    update in interface java.util.zip.Checksum
  - update
```
public void update(byte[] b,
                   int offset,
                   int length)
```
    Specified by:
    
    update in interface java.util.zip.Checksum
  - update
```
public void update(java.lang.String s)
```
  - getValue
```
public long getValue()
```
    Specified by:
    
    getValue in interface java.util.zip.Checksum
  - toString
```
public java.lang.String toString()
```
    Returns a zero-padded 16 character wide string containing the current value of this checksum in uppercase hexadecimal format.
    
    Overrides:
    
    toString in class java.lang.Object
  - reset
```
public void reset()
```
    Specified by:
    
    reset in interface java.util.zip.Checksum