Package org.h2.mvstore

Class WriteBuffer

java.lang.Object
org.h2.mvstore.WriteBuffer
public class WriteBuffer extends Object
An auto-resize buffer to write data into a ByteBuffer.

  • Constructor Details

    • WriteBuffer

      public WriteBuffer(int initialSize)

    • WriteBuffer

      public WriteBuffer()

  • Method Details

    • putVarInt

      public WriteBuffer putVarInt(int x)
      Write a variable size integer.
      Parameters:
      x - the value
      Returns:
      this

    • putVarLong

      public WriteBuffer putVarLong(long x)
      Write a variable size long.
      Parameters:
      x - the value
      Returns:
      this

    • putStringData

      public WriteBuffer putStringData(String s, int len)
      Write the characters of a string in a format similar to UTF-8.
      Parameters:
      s - the string
      len - the number of characters to write
      Returns:
      this

    • put

      public WriteBuffer put(byte x)
      Put a byte.
      Parameters:
      x - the value
      Returns:
      this

    • putChar

      public WriteBuffer putChar(char x)
      Put a character.
      Parameters:
      x - the value
      Returns:
      this

    • putShort

      public WriteBuffer putShort(short x)
      Put a short.
      Parameters:
      x - the value
      Returns:
      this

    • putInt

      public WriteBuffer putInt(int x)
      Put an integer.
      Parameters:
      x - the value
      Returns:
      this

    • putLong

      public WriteBuffer putLong(long x)
      Put a long.
      Parameters:
      x - the value
      Returns:
      this

    • putFloat

      public WriteBuffer putFloat(float x)
      Put a float.
      Parameters:
      x - the value
      Returns:
      this

    • putDouble

      public WriteBuffer putDouble(double x)
      Put a double.
      Parameters:
      x - the value
      Returns:
      this

    • put

      public WriteBuffer put(byte[] bytes)
      Put a byte array.
      Parameters:
      bytes - the value
      Returns:
      this

    • put

      public WriteBuffer put(byte[] bytes, int offset, int length)
      Put a byte array.
      Parameters:
      bytes - the value
      offset - the source offset
      length - the number of bytes
      Returns:
      this

    • put

      public WriteBuffer put(ByteBuffer src)
      Put the contents of a byte buffer.
      Parameters:
      src - the source buffer
      Returns:
      this

    • limit

      public WriteBuffer limit(int newLimit)
      Set the limit, possibly growing the buffer.
      Parameters:
      newLimit - the new limit
      Returns:
      this

    • capacity

      public int capacity()
      Get the capacity.
      Returns:
      the capacity

    • position

      public WriteBuffer position(int newPosition)
      Set the position.
      Parameters:
      newPosition - the new position
      Returns:
      the new position

    • limit

      public int limit()
      Get the limit.
      Returns:
      the limit

    • position

      public int position()
      Get the current position.
      Returns:
      the position

    • get

      public WriteBuffer get(byte[] dst)
      Copy the data into the destination array.
      Parameters:
      dst - the destination array
      Returns:
      this

    • putInt

      public WriteBuffer putInt(int index, int value)
      Update an integer at the given index.
      Parameters:
      index - the index
      value - the value
      Returns:
      this

    • putShort

      public WriteBuffer putShort(int index, short value)
      Update a short at the given index.
      Parameters:
      index - the index
      value - the value
      Returns:
      this

    • clear

      public WriteBuffer clear()
      Clear the buffer after use.
      Returns:
      this

    • getBuffer

      public ByteBuffer getBuffer()
      Get the byte buffer.
      Returns:
      the byte buffer