PositionedByteRange (Hortonworks Data Platform Apache HBase Java API Reference)

All Superinterfaces:

ByteRange, java.lang.Comparable<ByteRange>

All Known Implementing Classes:

AbstractPositionedByteRange, SimplePositionedByteRange, SimplePositionedMutableByteRange
```
@InterfaceAudience.Public
 @InterfaceStability.Evolving
public interface PositionedByteRange
extends ByteRange
```
Extends ByteRange with additional methods to support tracking a consumers position within the viewport. The API is extended with methods get() and put(byte) for interacting with the backing array from the current position forward. This frees the caller from managing their own index into the array.

Designed to be a slimmed-down, mutable alternative to ByteBuffer.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method and Description
`PositionedByteRange`	`deepCopy()` Create a new `ByteRange` with new backing byte[] containing a copy of the content from `this` range's window.
`byte`	`get()` Retrieve the next byte from this range.
`PositionedByteRange`	`get(byte[] dst)` Fill `dst` with bytes from the range, starting from `position`.
`PositionedByteRange`	`get(byte[] dst, int offset, int length)` Fill `dst` with bytes from the range, starting from the current `position`.
`PositionedByteRange`	`get(int index, byte[] dst)` Fill `dst` with bytes from the range, starting from `index`.
`PositionedByteRange`	`get(int index, byte[] dst, int offset, int length)` Fill `dst` with bytes from the range, starting from `index`.
`int`	`getInt()` Retrieve the next int value from this range.
`int`	`getLimit()` Return the current limit
`long`	`getLong()` Retrieve the next long value from this range.
`int`	`getPosition()` The current `position` marker.
`int`	`getRemaining()` The number of bytes remaining between position and the end of the range.
`short`	`getShort()` Retrieve the next short value from this range.
`long`	`getVLong()` Retrieve the next long value, which is stored as VLong, from this range
`byte`	`peek()` Retrieve the next byte from this range without incrementing position.
`PositionedByteRange`	`put(byte val)` Store `val` at the next position in this range.
`PositionedByteRange`	`put(byte[] val)` Store the content of `val` in this range, starting at the next position.
`PositionedByteRange`	`put(byte[] val, int offset, int length)` Store `length` bytes from `val` into this range.
`PositionedByteRange`	`put(int index, byte val)` Store `val` at `index`.
`PositionedByteRange`	`put(int index, byte[] val)` Store `val` at `index`.
`PositionedByteRange`	`put(int index, byte[] val, int offset, int length)` Store `length` bytes from `val` into this range, starting at `index`.
`PositionedByteRange`	`putInt(int val)` Store int `val` at the next position in this range.
`PositionedByteRange`	`putInt(int index, int val)` Store the int value at `index`
`PositionedByteRange`	`putLong(int index, long val)` Store the long value at `index`
`PositionedByteRange`	`putLong(long val)` Store long `val` at the next position in this range.
`PositionedByteRange`	`putShort(int index, short val)` Store the short value at `index`
`PositionedByteRange`	`putShort(short val)` Store short `val` at the next position in this range.
`int`	`putVLong(long val)` Store the long `val` at the next position as a VLong
`PositionedByteRange`	`set(byte[] bytes)` Reuse this `ByteRange` over a new byte[].
`PositionedByteRange`	`set(byte[] bytes, int offset, int length)` Reuse this `ByteRange` over a new byte[].
`PositionedByteRange`	`set(int capacity)` Reuse this `ByteRange` over a new byte[].
`PositionedByteRange`	`setLength(int length)` Update the length of this range.
`PositionedByteRange`	`setLimit(int limit)` Limits the byte range upto a specified value.
`PositionedByteRange`	`setOffset(int offset)` Update the beginning of this range.
`PositionedByteRange`	`setPosition(int position)` Update the `position` index.
`PositionedByteRange`	`shallowCopy()` Create a new `ByteRange` that points at this range's byte[].
`PositionedByteRange`	`shallowCopySubRange(int innerOffset, int copyLength)` Create a new `ByteRange` that points at this range's byte[].
`PositionedByteRange`	`unset()` Nullifies this ByteRange.

Methods inherited from interface org.apache.hadoop.hbase.util.ByteRange
deepCopySubRangeTo, deepCopyTo, deepCopyToNewArray, get, getBytes, getInt, getLength, getLong, getOffset, getShort, getVLong, isEmpty, putVLong

Methods inherited from interface java.lang.Comparable
compareTo

- Method Detail
  - getPosition
```
int getPosition()
```
    The current position marker. This valuae is 0-indexed, relative to the beginning of the range.
  - setPosition
```
PositionedByteRange setPosition(int position)
```
    Update the position index. May not be greater than length.
    
    Parameters:
    
    position - the new position in this range.
    
    Returns:
    
    this.
  - getRemaining
```
int getRemaining()
```
    The number of bytes remaining between position and the end of the range.
  - peek
```
byte peek()
```
    Retrieve the next byte from this range without incrementing position.
  - get
```
byte get()
```
    Retrieve the next byte from this range.
  - getShort
```
short getShort()
```
    Retrieve the next short value from this range.
  - getInt
```
int getInt()
```
    Retrieve the next int value from this range.
  - getLong
```
long getLong()
```
    Retrieve the next long value from this range.
  - getVLong
```
long getVLong()
```
    Retrieve the next long value, which is stored as VLong, from this range
    
    Returns:
    
    the long value which is stored as VLong
  - get
```
PositionedByteRange get(byte[] dst)
```
    Fill dst with bytes from the range, starting from position. This range's position is incremented by the length of dst, the number of bytes copied.
    
    Parameters:
    
    dst - the destination of the copy.
    
    Returns:
    
    this.
  - get
```
PositionedByteRange get(byte[] dst,
                        int offset,
                        int length)
```
    Fill dst with bytes from the range, starting from the current position. length bytes are copied into dst, starting at offset. This range's position is incremented by the number of bytes copied.
    
    Parameters:
    
    dst - the destination of the copy.
    
    offset - the offset into dst to start the copy.
    
    length - the number of bytes to copy into dst.
    
    Returns:
    
    this.
  - put
```
PositionedByteRange put(byte val)
```
    Store val at the next position in this range.
    
    Parameters:
    
    val - the new value.
    
    Returns:
    
    this.
  - putShort
```
PositionedByteRange putShort(short val)
```
    Store short val at the next position in this range.
    
    Parameters:
    
    val - the new value.
    
    Returns:
    
    this.
  - putInt
```
PositionedByteRange putInt(int val)
```
    Store int val at the next position in this range.
    
    Parameters:
    
    val - the new value.
    
    Returns:
    
    this.
  - putLong
```
PositionedByteRange putLong(long val)
```
    Store long val at the next position in this range.
    
    Parameters:
    
    val - the new value.
    
    Returns:
    
    this.
  - putVLong
```
int putVLong(long val)
```
    Store the long val at the next position as a VLong
    
    Parameters:
    
    val - the value to store
    
    Returns:
    
    number of bytes written
  - put
```
PositionedByteRange put(byte[] val)
```
    Store the content of val in this range, starting at the next position.
    
    Parameters:
    
    val - the new value.
    
    Returns:
    
    this.
  - put
```
PositionedByteRange put(byte[] val,
                        int offset,
                        int length)
```
    Store length bytes from val into this range. Bytes from val are copied starting at offset into the range, starting at the current position.
    
    Parameters:
    
    val - the new value.
    
    offset - the offset in val from which to start copying.
    
    length - the number of bytes to copy from val.
    
    Returns:
    
    this.
  - setLimit
```
PositionedByteRange setLimit(int limit)
```
    Limits the byte range upto a specified value. Limit cannot be greater than capacity
    
    Parameters:
    
    limit -
    
    Returns:
    
    PositionedByteRange
  - getLimit
```
int getLimit()
```
    Return the current limit
    
    Returns:
    
    limit
  - unset
```
PositionedByteRange unset()
```
    Description copied from interface: ByteRange
    
    Nullifies this ByteRange. That is, it becomes a husk, being a range over no byte[] whatsoever.
    
    Specified by:
    
    unset in interface ByteRange
    
    Returns:
    
    this
  - set
```
PositionedByteRange set(int capacity)
```
    Description copied from interface: ByteRange
    
    Reuse this ByteRange over a new byte[]. offset is set to 0 and length is set to capacity.
    
    Specified by:
    
    set in interface ByteRange
    
    Parameters:
    
    capacity - the size of a new byte[].
    
    Returns:
    
    this
  - set
```
PositionedByteRange set(byte[] bytes)
```
    Description copied from interface: ByteRange
    
    Reuse this ByteRange over a new byte[]. offset is set to 0 and length is set to bytes.length. A null bytes IS supported, in which case this method will behave equivalently to ByteRange.unset().
    
    Specified by:
    
    set in interface ByteRange
    
    Parameters:
    
    bytes - the array to wrap.
    
    Returns:
    
    this
  - set
```
PositionedByteRange set(byte[] bytes,
                        int offset,
                        int length)
```
    Description copied from interface: ByteRange
    
    Reuse this ByteRange over a new byte[]. A null bytes IS supported, in which case this method will behave equivalently to ByteRange.unset(), regardless of the values of offset and length.
    
    Specified by:
    
    set in interface ByteRange
    
    Parameters:
    
    bytes - The array to wrap.
    
    offset - The offset into bytes considered the beginning of this range.
    
    length - The length of this range.
    
    Returns:
    
    this.
  - setOffset
```
PositionedByteRange setOffset(int offset)
```
    Description copied from interface: ByteRange
    
    Update the beginning of this range. offset + length may not be greater than bytes.length.
    
    Specified by:
    
    setOffset in interface ByteRange
    
    Parameters:
    
    offset - the new start of this range.
    
    Returns:
    
    this.
  - setLength
```
PositionedByteRange setLength(int length)
```
    Description copied from interface: ByteRange
    
    Update the length of this range. offset + length should not be greater than bytes.length.
    
    Specified by:
    
    setLength in interface ByteRange
    
    Parameters:
    
    length - The new length of this range.
    
    Returns:
    
    this.
  - get
```
PositionedByteRange get(int index,
                        byte[] dst)
```
    Description copied from interface: ByteRange
    
    Fill dst with bytes from the range, starting from index.
    
    Specified by:
    
    get in interface ByteRange
    
    Parameters:
    
    index - zero-based index into this range.
    
    dst - the destination of the copy.
    
    Returns:
    
    this.
  - get
```
PositionedByteRange get(int index,
                        byte[] dst,
                        int offset,
                        int length)
```
    Description copied from interface: ByteRange
    
    Fill dst with bytes from the range, starting from index. length bytes are copied into dst, starting at offset.
    
    Specified by:
    
    get in interface ByteRange
    
    Parameters:
    
    index - zero-based index into this range.
    
    dst - the destination of the copy.
    
    offset - the offset into dst to start the copy.
    
    length - the number of bytes to copy into dst.
    
    Returns:
    
    this.
  - put
```
PositionedByteRange put(int index,
                        byte val)
```
    Description copied from interface: ByteRange
    
    Store val at index.
    
    Specified by:
    
    put in interface ByteRange
    
    Parameters:
    
    index - the index in the range where val is stored.
    
    val - the value to store.
    
    Returns:
    
    this.
  - putShort
```
PositionedByteRange putShort(int index,
                             short val)
```
    Description copied from interface: ByteRange
    
    Store the short value at index
    
    Specified by:
    
    putShort in interface ByteRange
    
    Parameters:
    
    index - the index in the range where val is stored
    
    val - the value to store
    
    Returns:
    
    this
  - putInt
```
PositionedByteRange putInt(int index,
                           int val)
```
    Description copied from interface: ByteRange
    
    Store the int value at index
    
    Specified by:
    
    putInt in interface ByteRange
    
    Parameters:
    
    index - the index in the range where val is stored
    
    val - the value to store
    
    Returns:
    
    this
  - putLong
```
PositionedByteRange putLong(int index,
                            long val)
```
    Description copied from interface: ByteRange
    
    Store the long value at index
    
    Specified by:
    
    putLong in interface ByteRange
    
    Parameters:
    
    index - the index in the range where val is stored
    
    val - the value to store
    
    Returns:
    
    this
  - put
```
PositionedByteRange put(int index,
                        byte[] val)
```
    Description copied from interface: ByteRange
    
    Store val at index.
    
    Specified by:
    
    put in interface ByteRange
    
    Parameters:
    
    index - the index in the range where val is stored.
    
    val - the value to store.
    
    Returns:
    
    this.
  - put
```
PositionedByteRange 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.
    
    Specified by:
    
    put in interface ByteRange
    
    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.
  - deepCopy
```
PositionedByteRange 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.
    
    Specified by:
    
    deepCopy in interface ByteRange
    
    Returns:
    
    Deep copy
  - shallowCopy
```
PositionedByteRange 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.
    
    Specified by:
    
    shallowCopy in interface ByteRange
    
    Returns:
    
    new ByteRange object referencing this range's byte[].
  - shallowCopySubRange
```
PositionedByteRange 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.
    
    Specified by:
    
    shallowCopySubRange in interface ByteRange
    
    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[].

Interface PositionedByteRange

Method Summary

Methods inherited from interface org.apache.hadoop.hbase.util.ByteRange

Methods inherited from interface java.lang.Comparable

Method Detail

getPosition

setPosition

getRemaining

peek

get

getShort

getInt

getLong

getVLong

get

get

put

putShort

putInt

putLong

putVLong

put

put

setLimit

getLimit

unset

set

set

set

setOffset

setLength

get

get

put

putShort

putInt

putLong

put

put

deepCopy

shallowCopy

shallowCopySubRange