OpenJDK 27 · java.util.zip.CRC32 · APIdia, the JavaDoc alternative

Modifier and Type	Field and Description
private int	crc

Access	Constructor and Description
public	CRC32() Creates a new CRC32 object.

Method Summary

Modifier and Type	Method and Description
public long	getValue() Implements java.util.zip.Checksum.getValue. Returns CRC-32 value.
public void	reset() Implements java.util.zip.Checksum.reset. Resets CRC-32 to initial value.
public void	update(int b) Implements java.util.zip.Checksum.update. Updates the CRC-32 checksum with the specified byte (the low eight bits of the argument b).
public void	update(byte[] b, int off, int len) Implements java.util.zip.Checksum.update. Updates the CRC-32 checksum with the specified array of bytes.
public void	update(ByteBuffer buffer) Overrides default java.util.zip.Checksum.update. Updates the CRC-32 checksum with the bytes from the specified buffer.
private static native int	update(int crc, int b)
private static int	updateByteBuffer(int alder, long addr, int off, int len)
private static native int	updateByteBuffer0(int alder, long addr, int off, int len)
private static void	updateByteBufferCheck(long addr)
private static int	updateBytes(int crc, byte[] b, int off, int len)
private static native int	updateBytes0(int crc, byte[] b, int off, int len)
private static void	updateBytesCheck(byte[] b, int off, int len)

Inherited from java.lang.Object:: clone equals finalize getClass hashCode notify notifyAll toString wait wait wait

crc	back to summary
private int crc

CRC32	back to summary
public CRC32() Creates a new CRC32 object.

Method Detail

getValue	back to summary
public long getValue() Implements java.util.zip.Checksum.getValue. Returns CRC-32 value. Annotations @Override

getValue

back to summary

public long getValue()

Implements java.util.zip.Checksum.getValue.

Returns CRC-32 value.

Annotations

@Override

reset	back to summary
public void reset() Implements java.util.zip.Checksum.reset. Resets CRC-32 to initial value. Annotations @Override

reset

back to summary

public void reset()

Implements java.util.zip.Checksum.reset.

Resets CRC-32 to initial value.

Annotations

@Override

update	back to summary
public void update(int b) Implements java.util.zip.Checksum.update. Updates the CRC-32 checksum with the specified byte (the low eight bits of the argument b). Annotations @Override

update

back to summary

public void update(int b)

Implements java.util.zip.Checksum.update.

Updates the CRC-32 checksum with the specified byte (the low eight bits of the argument b).

Annotations

@Override

update back to summary

update	back to summary
public void update(byte[] b, int off, int len) Implements java.util.zip.Checksum.update. Updates the CRC-32 checksum with the specified array of bytes. Annotations @Override Exceptions ArrayIndexOutOfBoundsException: if `off` is negative, or `len` is negative, or `off+len` is negative or greater than the length of the array `b`.

public void update(byte[] b, int off, int len)

Implements java.util.zip.Checksum.update.

Updates the CRC-32 checksum with the specified array of bytes.

Annotations

@Override

Exceptions

ArrayIndexOutOfBoundsException:: if off is negative, or len is negative, or off+len is negative or greater than the length of the array b.

update	back to summary
public void update(ByteBuffer buffer) Overrides default java.util.zip.Checksum.update. Updates the CRC-32 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. Annotations @Override Since 1.8

update

back to summary

public void update(ByteBuffer buffer)

Overrides default java.util.zip.Checksum.update.

Updates the CRC-32 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.

Annotations

@Override

Since

1.8

update	back to summary
private static native int update(int crc, int b) Annotations @IntrinsicCandidate

updateByteBuffer	back to summary
private static int updateByteBuffer(int alder, long addr, int off, int len)

updateByteBuffer0	back to summary
private static native int updateByteBuffer0(int alder, long addr, int off, int len) Annotations @IntrinsicCandidate

updateByteBufferCheck	back to summary
private static void updateByteBufferCheck(long addr)

updateBytes	back to summary
private static int updateBytes(int crc, byte[] b, int off, int len)

updateBytes0	back to summary
private static native int updateBytes0(int crc, byte[] b, int off, int len) Annotations @IntrinsicCandidate

updateBytesCheck	back to summary
private static void updateBytesCheck(byte[] b, int off, int len)

public Class CRC32

Field Summary

Constructor Summary

Method Summary

Field Detail

Constructor Detail

Method Detail