org.apache.hadoop.hbase.util

Class SimpleMutableByteRange

java.lang.Object

org.apache.hadoop.hbase.util.AbstractByteRange

org.apache.hadoop.hbase.util.SimpleMutableByteRange

All Implemented Interfaces:

Comparable<ByteRange>, ByteRange

@InterfaceAudience.Public
public class SimpleMutableByteRange
extends AbstractByteRange

A basic mutable ByteRange implementation.

Field Summary

Fields inherited from class org.apache.hadoop.hbase.util.AbstractByteRange

bytes, hash, length, offset, UNSET_HASH_VALUE

Constructor Summary

Constructors

Constructor and Description
SimpleMutableByteRange() Create a new ByteRange lacking a backing array and with an undefined viewport.
SimpleMutableByteRange(byte[] bytes) Create a new ByteRange over the provided bytes.
SimpleMutableByteRange(byte[] bytes, int offset, int length) Create a new ByteRange over the provided bytes.
SimpleMutableByteRange(int capacity) Create a new ByteRange over a new backing array of size capacity.

Method Summary

Modifier and Type	Method and Description
ByteRange	deepCopy() Create a new ByteRange with new backing byte[] containing a copy of the content from this range's window.
boolean	equals(Object thatObject)
ByteRange	put(int index, byte val) Store val at index.
ByteRange	put(int index, byte[] val) Store val at index.
ByteRange	put(int index, byte[] val, int offset, int length) Store length bytes from val into this range, starting at index.
ByteRange	putInt(int index, int val) Store the int value at index
ByteRange	putLong(int index, long val) Store the long value at index
ByteRange	putShort(int index, short val) Store the short value at index
int	putVLong(int index, long val) Store the long value at index as a VLong
ByteRange	shallowCopy() Create a new ByteRange that points at this range's byte[].
ByteRange	shallowCopySubRange(int innerOffset, int copyLength) Create a new ByteRange that points at this range's byte[].
ByteRange	unset() Nullifies this ByteRange.

Methods inherited from class org.apache.hadoop.hbase.util.AbstractByteRange

clearHashCache, compareTo, deepCopySubRangeTo, deepCopyTo, deepCopyToNewArray, get, get, get, getBytes, getInt, getLength, getLong, getOffset, getShort, getVLong, getVLongSize, hashCode, isEmpty, isEmpty, isHashCached, set, set, set, setLength, setOffset, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

SimpleMutableByteRange

public SimpleMutableByteRange()

Create a new ByteRange lacking a backing array and with an undefined viewport.

SimpleMutableByteRange

public SimpleMutableByteRange(int capacity)

Create a new ByteRange over a new backing array of size capacity. The range's offset and length are 0 and capacity, respectively.

Parameters:

capacity - the size of the backing array.

SimpleMutableByteRange

public SimpleMutableByteRange(byte[] bytes)

Create a new ByteRange over the provided bytes.

Parameters:

bytes - The array to wrap.

SimpleMutableByteRange

public SimpleMutableByteRange(byte[] bytes,
                              int offset,
                              int length)

Create a new ByteRange over the provided bytes.

Parameters:

bytes - The array to wrap.

offset - The offset into bytes considered the beginning of this range.

length - The length of this range.

Method Detail

unset

public ByteRange unset()

Description copied from interface: ByteRange

Nullifies this ByteRange. That is, it becomes a husk, being a range over no byte[] whatsoever.

Returns:

this

put

public ByteRange put(int index,
                     byte val)

Description copied from interface: ByteRange

Store val at index.

Parameters:

index - the index in the range where val is stored.

val - the value to store.

Returns:

this.

put

public ByteRange put(int index,
                     byte[] val)

Description copied from interface: ByteRange

Store val at index.

Parameters:

index - the index in the range where val is stored.

val - the value to store.

Returns:

this.

put

public ByteRange put(int index,
                     byte[] val,
                     int offset,
                     int length)

Description copied from interface: ByteRange

Store length bytes from val into this range, starting at index. Bytes from val are copied starting at offset into the range.

Parameters:

index - position in this range to start the copy.

val - the value to store.

offset - the offset in val from which to start copying.

length - the number of bytes to copy from val.

Returns:

this.

putShort

public ByteRange putShort(int index,
                          short val)

Description copied from interface: ByteRange

Store the short value at index

Parameters:

index - the index in the range where val is stored

val - the value to store

Returns:

this

putInt

public ByteRange putInt(int index,
                        int val)

Description copied from interface: ByteRange

Store the int value at index

Parameters:

index - the index in the range where val is stored

val - the value to store

Returns:

this

putLong

public ByteRange putLong(int index,
                         long val)

Description copied from interface: ByteRange

Store the long value at index

Parameters:

index - the index in the range where val is stored

val - the value to store

Returns:

this

putVLong

public int putVLong(int index,
                    long val)

Description copied from interface: ByteRange

Store the long value at index as a VLong

Parameters:

index - the index in the range where val is stored

val - the value to store

Returns:

number of bytes written

deepCopy

public ByteRange deepCopy()

Description copied from interface: ByteRange

Create a new ByteRange with new backing byte[] containing a copy of the content from this range's window.

Returns:

Deep copy

shallowCopy

public ByteRange shallowCopy()

Description copied from interface: ByteRange

Create a new ByteRange that points at this range's byte[]. Modifying the shallowCopy will modify the bytes in this range's array. Pass over the hash code if it is already cached.

Returns:

new ByteRange object referencing this range's byte[].

shallowCopySubRange

public ByteRange shallowCopySubRange(int innerOffset,
                                     int copyLength)

Description copied from interface: ByteRange

Create a new ByteRange that points at this range's byte[]. The new range can have different values for offset and length, but modifying the shallowCopy will modify the bytes in this range's array. Pass over the hash code if it is already cached.

Parameters:

innerOffset - First byte of clone will be this.offset + copyOffset.

copyLength - Number of bytes in the clone.

Returns:

new ByteRange object referencing this range's byte[].

equals

public boolean equals(Object thatObject)

Overrides:

equals in class AbstractByteRange