Package org.apache.lucene.store

# Class ByteArrayDataInput

java.lang.Object
org.apache.lucene.store.DataInput
org.apache.lucene.store.ByteArrayDataInput

All Implemented Interfaces:
  `Cloneable`

public final class ByteArrayDataInput extends DataInput
DataInput backed by a byte array. WARNING: This class omits all low-level checks.

WARNING: This API is experimental and might change in incompatible ways in the next release.

- ## Constructor Summary

  Constructors
  Constructor
  Description
  `ByteArrayDataInput()`
  `ByteArrayDataInput(byte[] bytes)`
  `ByteArrayDataInput(byte[] bytes, int offset, int len)`

- ## Method Summary

  Modifier and Type
  Method
  Description
  `boolean`
  `eof()`
  `int`
  `getPosition()`
  `int`
  `length()`
  `byte`
  `readByte()`
  Reads and returns a single byte.
  `void`
  `readBytes(byte[] b, int offset, int len)`
  Reads a specified number of bytes into an array at the specified offset.
  `int`
  `readInt()`
  Reads four bytes and returns an int (LE byte order).
  `long`
  `readLong()`
  Reads eight bytes and returns a long (LE byte order).
  `short`
  `readShort()`
  Reads two bytes and returns a short (LE byte order).
  `int`
  `readVInt()`
  Reads an int stored in variable-length format.
  `long`
  `readVLong()`
  Reads a long stored in variable-length format.
  `void`
  `reset(byte[] bytes)`
  `void`
  `reset(byte[] bytes, int offset, int len)`
  `void`
  `rewind()`
  `void`
  `setPosition(int pos)`
  `void`
  `skipBytes(long count)`
  Skip over `numBytes` bytes.

  ### Methods inherited from class org.apache.lucene.store.DataInput

  `clone, readBytes, readFloats, readGroupVInt, readInts, readLongs, readMapOfStrings, readSetOfStrings, readString, readZInt, readZLong`

  ### Methods inherited from class java.lang.Object

  `equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

- ## Constructor Details

  - ### ByteArrayDataInput

    public ByteArrayDataInput(byte[] bytes)

  - ### ByteArrayDataInput

    public ByteArrayDataInput(byte[] bytes, int offset, int len)

  - ### ByteArrayDataInput

    public ByteArrayDataInput()

- ## Method Details

  - ### reset

    public void reset(byte[] bytes)

  - ### rewind

    public void rewind()

  - ### getPosition

    public int getPosition()

  - ### setPosition

    public void setPosition(int pos)

  - ### reset

    public void reset(byte[] bytes, int offset, int len)

  - ### length

    public int length()

  - ### eof

    public boolean eof()

  - ### skipBytes

    public void skipBytes(long count)
    Description copied from class: `DataInput`
    Skip over `numBytes` bytes. This method may skip bytes in whatever way is most optimal, and may not have the same behavior as reading the skipped bytes. In general, negative `numBytes` are not supported.
    Specified by:
      `skipBytes` in class `DataInput`

  - ### readShort

    public short readShort()
    Description copied from class: `DataInput`
    Reads two bytes and returns a short (LE byte order).
    Overrides:
      `readShort` in class `DataInput`
    See Also:
      - `DataOutput.writeShort(short)`
      - `BitUtil.VH_LE_SHORT`

  - ### readInt

    public int readInt()
    Description copied from class: `DataInput`
    Reads four bytes and returns an int (LE byte order).
    Overrides:
      `readInt` in class `DataInput`
    See Also:
      - `DataOutput.writeInt(int)`
      - `BitUtil.VH_LE_INT`

  - ### readLong

    public long readLong()
    Description copied from class: `DataInput`
    Reads eight bytes and returns a long (LE byte order).
    Overrides:
      `readLong` in class `DataInput`
    See Also:
      - `DataOutput.writeLong(long)`
      - `BitUtil.VH_LE_LONG`

  - ### readVInt

    public int readVInt()
    Description copied from class: `DataInput`
    Reads an int stored in variable-length format. Reads between one and five bytes. Smaller values take fewer bytes. Negative numbers are supported, but should be avoided.

    The format is described further in `DataOutput.writeVInt(int)`.

    Overrides:
      `readVInt` in class `DataInput`
    See Also:
      - `DataOutput.writeVInt(int)`

  - ### readVLong

    public long readVLong()
    Description copied from class: `DataInput`
    Reads a long stored in variable-length format. Reads between one and nine bytes. Smaller values take fewer bytes. Negative numbers are not supported.

    The format is described further in `DataOutput.writeVInt(int)`.

    Overrides:
      `readVLong` in class `DataInput`
    See Also:
      - `DataOutput.writeVLong(long)`

  - ### readByte

    public byte readByte()
    Description copied from class: `DataInput`
    Reads and returns a single byte.
    Specified by:
      `readByte` in class `DataInput`
    See Also:
      - `DataOutput.writeByte(byte)`

  - ### readBytes

    public void readBytes(byte[] b, int offset, int len)
    Description copied from class: `DataInput`
    Reads a specified number of bytes into an array at the specified offset.
    Specified by:
      `readBytes` in class `DataInput`
    Parameters:
      `b` - the array to read bytes into
      `offset` - the offset in the array to start storing bytes
      `len` - the number of bytes to read
    See Also:
      - `DataOutput.writeBytes(byte[],int)`