org.apache.ignite.internal.processors.cache.persistence.wal

## Class FileInput.Crc32CheckingFileInput

- java.lang.Object
- - org.apache.ignite.internal.processors.cache.persistence.wal.FileInput.Crc32CheckingFileInput

All Implemented Interfaces:
  DataInput, AutoCloseable, ByteBufferBackedDataInput

Enclosing class:
  FileInput

    public class FileInput.Crc32CheckingFileInput
    extends Object
    implements ByteBufferBackedDataInput, AutoCloseable

Checking of CRC32.

### Constructor Summary

Constructors
Constructor and Description
`Crc32CheckingFileInput(int position, boolean skipCheck)`

### Method Summary

All Methods Instance Methods Concrete Methods
`ByteBuffer` `buffer()`
`void` `close()`
`void` `ensure(int requested)` ensure that requested count of byte is available in data input and will try to load data if not
`boolean` `readBoolean()`
`byte` `readByte()`
`char` `readChar()`
`double` `readDouble()`
`float` `readFloat()`
`void` `readFully(byte[] b)`
`void` `readFully(byte[] b, int off, int len)`
`int` `readInt()`
`String` `readLine()`
`long` `readLong()`
`short` `readShort()`
`int` `readUnsignedByte()`
`int` `readUnsignedShort()`
`String` `readUTF()`
`int` `skipBytes(int n)`

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

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

### Constructor Detail

#### Crc32CheckingFileInput

    public Crc32CheckingFileInput(int position,
                                  boolean skipCheck)

Parameters:
  `position` - Position.

### Method Detail

#### ensure

    public void ensure(int requested)
                throws IOException

ensure that requested count of byte is available in data input and will try to load data if not

Specified by:
  `ensure` in interface `ByteBufferBackedDataInput`
Parameters:
  `requested` - Requested number of bytes.
Throws:
  `IOException` - If failed.

#### close

    public void close()
               throws Exception

Specified by:
  `close` in interface `AutoCloseable`
Throws:
  `Exception`

#### skipBytes

    public int skipBytes(int n)
                  throws IOException

Specified by:
  `skipBytes` in interface `DataInput`
Throws:
  `IOException`

#### readFully

    public void readFully(@NotNull
                          byte[] b)
                   throws IOException

Specified by:
  `readFully` in interface `DataInput`
Throws:
  `IOException`

#### readFully

    public void readFully(@NotNull
                          byte[] b,
                          int off,
                          int len)
                   throws IOException

Specified by:
  `readFully` in interface `DataInput`
Throws:
  `IOException`

#### readBoolean

    public boolean readBoolean()
                        throws IOException

Specified by:
  `readBoolean` in interface `DataInput`
Throws:
  `IOException`

#### readByte

    public byte readByte()
                  throws IOException

Specified by:
  `readByte` in interface `DataInput`
Throws:
  `IOException`

#### readUnsignedByte

    public int readUnsignedByte()
                         throws IOException

Specified by:
  `readUnsignedByte` in interface `DataInput`
Throws:
  `IOException`

#### readShort

    public short readShort()
                    throws IOException

Specified by:
  `readShort` in interface `DataInput`
Throws:
  `IOException`

#### readUnsignedShort

    public int readUnsignedShort()
                          throws IOException

Specified by:
  `readUnsignedShort` in interface `DataInput`
Throws:
  `IOException`

#### readChar

    public char readChar()
                  throws IOException

Specified by:
  `readChar` in interface `DataInput`
Throws:
  `IOException`

#### readInt

    public int readInt()
                throws IOException

Specified by:
  `readInt` in interface `DataInput`
Throws:
  `IOException`

#### readLong

    public long readLong()
                  throws IOException

Specified by:
  `readLong` in interface `DataInput`
Throws:
  `IOException`

#### readFloat

    public float readFloat()
                    throws IOException

Specified by:
  `readFloat` in interface `DataInput`
Throws:
  `IOException`

#### readDouble

    public double readDouble()
                      throws IOException

Specified by:
  `readDouble` in interface `DataInput`
Throws:
  `IOException`

#### readLine

    public String readLine()
                    throws IOException

Specified by:
  `readLine` in interface `DataInput`
Throws:
  `IOException`

#### readUTF

    public String readUTF()
                   throws IOException

Specified by:
  `readUTF` in interface `DataInput`
Throws:
  `IOException`

#### buffer

    public ByteBuffer buffer()

Specified by:
  `buffer` in interface `ByteBufferBackedDataInput`
Returns:
  ByteBuffer hold by data input

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Release Date | : March 5 2018