Buffer (Vert.x Stack - Docs 4.5.12 API)

All Superinterfaces:

io.vertx.core.shareddata.impl.ClusterSerializable, Shareable
```
public interface Buffer
extends ClusterSerializable, Shareable
```
Most data is shuffled around inside Vert.x using buffers.
A buffer is a sequence of zero or more bytes that can read from or written to and which expands automatically as necessary to accommodate any bytes written to it. You can perhaps think of a buffer as smart byte array.
Please consult the documentation for more information on buffers.

Author:

Tim Fox

Method Summary

All Methods Static Methods Instance Methods Abstract Methods Default Methods Deprecated Methods
Modifier and Type	Method and Description
`Buffer`	`appendBuffer(Buffer buff)` Appends the specified `Buffer` to the end of this Buffer.
`Buffer`	`appendBuffer(Buffer buff, int offset, int len)` Appends the specified `Buffer` starting at the `offset` using `len` to the end of this Buffer.
`Buffer`	`appendByte(byte b)` Appends the specified `byte` to the end of the Buffer.
`Buffer`	`appendBytes(byte[] bytes)` Appends the specified `byte[]` to the end of the Buffer.
`Buffer`	`appendBytes(byte[] bytes, int offset, int len)` Appends the specified number of bytes from `byte[]` to the end of the Buffer, starting at the given offset.
`Buffer`	`appendDouble(double d)` Appends the specified `double` to the end of the Buffer.
`Buffer`	`appendFloat(float f)` Appends the specified `float` to the end of the Buffer.
`Buffer`	`appendInt(int i)` Appends the specified `int` to the end of the Buffer.
`Buffer`	`appendIntLE(int i)` Appends the specified `int` to the end of the Buffer in the Little Endian Byte Order.
`Buffer`	`appendLong(long l)` Appends the specified `long` to the end of the Buffer.
`Buffer`	`appendLongLE(long l)` Appends the specified `long` to the end of the Buffer in the Little Endian Byte Order.
`Buffer`	`appendMedium(int i)` Appends the specified 24bit `int` to the end of the Buffer.
`Buffer`	`appendMediumLE(int i)` Appends the specified 24bit `int` to the end of the Buffer in the Little Endian Byte Order.
`Buffer`	`appendShort(short s)` Appends the specified `short` to the end of the Buffer.The buffer will expand as necessary to accommodate any bytes written.
`Buffer`	`appendShortLE(short s)` Appends the specified `short` to the end of the Buffer in the Little Endian Byte Order.The buffer will expand as necessary to accommodate any bytes written.
`Buffer`	`appendString(String str)` Appends the specified `String str` to the end of the Buffer with UTF-8 encoding.
`Buffer`	`appendString(String str, String enc)` Appends the specified `String` to the end of the Buffer with the encoding as specified by `enc`.
`Buffer`	`appendUnsignedByte(short b)` Appends the specified unsigned `byte` to the end of the Buffer.
`Buffer`	`appendUnsignedInt(long i)` Appends the specified unsigned `int` to the end of the Buffer.
`Buffer`	`appendUnsignedIntLE(long i)` Appends the specified unsigned `int` to the end of the Buffer in the Little Endian Byte Order.
`Buffer`	`appendUnsignedShort(int s)` Appends the specified unsigned `short` to the end of the Buffer.The buffer will expand as necessary to accommodate any bytes written.
`Buffer`	`appendUnsignedShortLE(int s)` Appends the specified unsigned `short` to the end of the Buffer in the Little Endian Byte Order.The buffer will expand as necessary to accommodate any bytes written.
`static Buffer`	`buffer()` Create a new, empty buffer.
`static Buffer`	`buffer(byte[] bytes)` Create a new buffer from a byte[].
`static Buffer`	`buffer(ByteBuf byteBuf)` Deprecated. removed from public API in Vert.x 5
`static Buffer`	`buffer(int initialSizeHint)` Create a new buffer given the initial size hint.
`static Buffer`	`buffer(String string)` Create a new buffer from a string.
`static Buffer`	`buffer(String string, String enc)` Create a new buffer from a string and using the specified encoding.
`Buffer`	`copy()` Returns a copy of the entire Buffer.
`Buffer`	`getBuffer(int start, int end)` Returns a copy of a sub-sequence the Buffer as a `Buffer` starting at position `start` and ending at position `end - 1`
`byte`	`getByte(int pos)` Returns the `byte` at position `pos` in the Buffer.
`ByteBuf`	`getByteBuf()` Deprecated. removed from public API in Vert.x 5
`byte[]`	`getBytes()` Returns a copy of the entire Buffer as a `byte[]`
`Buffer`	`getBytes(byte[] dst)` Transfers the content of the Buffer into a `byte[]`.
`Buffer`	`getBytes(byte[] dst, int dstIndex)` Transfers the content of the Buffer into a `byte[]` at the specific destination.
`byte[]`	`getBytes(int start, int end)` Returns a copy of a sub-sequence the Buffer as a `byte[]` starting at position `start` and ending at position `end - 1`
`Buffer`	`getBytes(int start, int end, byte[] dst)` Transfers the content of the Buffer starting at position `start` and ending at position `end - 1` into a `byte[]`.
`Buffer`	`getBytes(int start, int end, byte[] dst, int dstIndex)` Transfers the content of the Buffer starting at position `start` and ending at position `end - 1` into a `byte[]` at the specific destination.
`double`	`getDouble(int pos)` Returns the `double` at position `pos` in the Buffer.
`float`	`getFloat(int pos)` Returns the `float` at position `pos` in the Buffer.
`int`	`getInt(int pos)` Returns the `int` at position `pos` in the Buffer.
`int`	`getIntLE(int pos)` Gets a 32-bit integer at the specified absolute `index` in this buffer with Little Endian Byte Order.
`long`	`getLong(int pos)` Returns the `long` at position `pos` in the Buffer.
`long`	`getLongLE(int pos)` Gets a 64-bit long integer at the specified absolute `index` in this buffer in Little Endian Byte Order.
`int`	`getMedium(int pos)` Gets a 24-bit medium integer at the specified absolute `index` in this buffer.
`int`	`getMediumLE(int pos)` Gets a 24-bit medium integer at the specified absolute `index` in this buffer in the Little Endian Byte Order.
`short`	`getShort(int pos)` Returns the `short` at position `pos` in the Buffer.
`short`	`getShortLE(int pos)` Gets a 16-bit short integer at the specified absolute `index` in this buffer in Little Endian Byte Order.
`String`	`getString(int start, int end)` Returns a copy of a sub-sequence the Buffer as a `String` starting at position `start` and ending at position `end - 1` interpreted as a String in UTF-8 encoding
`String`	`getString(int start, int end, String enc)` Returns a copy of a sub-sequence the Buffer as a `String` starting at position `start` and ending at position `end - 1` interpreted as a String in the specified encoding
`short`	`getUnsignedByte(int pos)` Returns the unsigned `byte` at position `pos` in the Buffer, as a `short`.
`long`	`getUnsignedInt(int pos)` Returns the unsigned `int` at position `pos` in the Buffer, as a `long`.
`long`	`getUnsignedIntLE(int pos)` Returns the unsigned `int` at position `pos` in the Buffer, as a `long` in Little Endian Byte Order.
`int`	`getUnsignedMedium(int pos)` Gets an unsigned 24-bit medium integer at the specified absolute `index` in this buffer.
`int`	`getUnsignedMediumLE(int pos)` Gets an unsigned 24-bit medium integer at the specified absolute `index` in this buffer in Little Endian Byte Order.
`int`	`getUnsignedShort(int pos)` Returns the unsigned `short` at position `pos` in the Buffer, as an `int`.
`int`	`getUnsignedShortLE(int pos)` Gets an unsigned 16-bit short integer at the specified absolute `index` in this buffer in Little Endian Byte Order.
`int`	`length()` Returns the length of the buffer, measured in bytes.
`Buffer`	`setBuffer(int pos, Buffer b)` Sets the bytes at position `pos` in the Buffer to the bytes represented by the `Buffer b`.
`Buffer`	`setBuffer(int pos, Buffer b, int offset, int len)` Sets the bytes at position `pos` in the Buffer to the bytes represented by the `Buffer b` on the given `offset` and `len`.
`Buffer`	`setByte(int pos, byte b)` Sets the `byte` at position `pos` in the Buffer to the value `b`.
`Buffer`	`setBytes(int pos, byte[] b)` Sets the bytes at position `pos` in the Buffer to the bytes represented by the `byte[] b`.
`Buffer`	`setBytes(int pos, byte[] b, int offset, int len)` Sets the given number of bytes at position `pos` in the Buffer to the bytes represented by the `byte[] b`.
`Buffer`	`setBytes(int pos, ByteBuffer b)` Sets the bytes at position `pos` in the Buffer to the bytes represented by the `ByteBuffer b`.
`Buffer`	`setDouble(int pos, double d)` Sets the `double` at position `pos` in the Buffer to the value `d`.
`Buffer`	`setFloat(int pos, float f)` Sets the `float` at position `pos` in the Buffer to the value `f`.
`Buffer`	`setInt(int pos, int i)` Sets the `int` at position `pos` in the Buffer to the value `i`.
`Buffer`	`setIntLE(int pos, int i)` Sets the `int` at position `pos` in the Buffer to the value `i` in the Little Endian Byte Order.
`Buffer`	`setLong(int pos, long l)` Sets the `long` at position `pos` in the Buffer to the value `l`.
`Buffer`	`setLongLE(int pos, long l)` Sets the `long` at position `pos` in the Buffer to the value `l` in the Little Endian Byte Order.
`Buffer`	`setMedium(int pos, int i)` Sets the 24bit `int` at position `pos` in the Buffer to the value `i`.
`Buffer`	`setMediumLE(int pos, int i)` Sets the 24bit `int` at position `pos` in the Buffer to the value `i`.
`Buffer`	`setShort(int pos, short s)` Sets the `short` at position `pos` in the Buffer to the value `s`.
`Buffer`	`setShortLE(int pos, short s)` Sets the `short` at position `pos` in the Buffer to the value `s` in the Little Endian Byte Order.
`Buffer`	`setString(int pos, String str)` Sets the bytes at position `pos` in the Buffer to the value of `str` encoded in UTF-8.
`Buffer`	`setString(int pos, String str, String enc)` Sets the bytes at position `pos` in the Buffer to the value of `str` encoded in encoding `enc`.
`Buffer`	`setUnsignedByte(int pos, short b)` Sets the unsigned `byte` at position `pos` in the Buffer to the value `b`.
`Buffer`	`setUnsignedInt(int pos, long i)` Sets the unsigned `int` at position `pos` in the Buffer to the value `i`.
`Buffer`	`setUnsignedIntLE(int pos, long i)` Sets the unsigned `int` at position `pos` in the Buffer to the value `i` in the Little Endian Byte Order.
`Buffer`	`setUnsignedShort(int pos, int s)` Sets the unsigned `short` at position `pos` in the Buffer to the value `s`.
`Buffer`	`setUnsignedShortLE(int pos, int s)` Sets the unsigned `short` at position `pos` in the Buffer to the value `s` in the Little Endian Byte Order.
`Buffer`	`slice()` Returns a slice of this buffer.
`Buffer`	`slice(int start, int end)` Returns a slice of this buffer.
`default Object`	`toJson()` Deprecated. instead use `toJsonValue()`
`JsonArray`	`toJsonArray()` Returns a `JsonArray` representation of this buffer's content.
`JsonObject`	`toJsonObject()` Returns a `JsonObject` representation of this buffer's content.
`default Object`	`toJsonValue()` Returns a Json value representation of this buffer's content.
`String`	`toString()` Returns a `String` representation of the Buffer with the `UTF-8` encoding
`String`	`toString(Charset enc)` Returns a `String` representation of the Buffer with the encoding specified by `enc`
`String`	`toString(String enc)` Returns a `String` representation of the Buffer with the encoding specified by `enc`

Methods inherited from interface io.vertx.core.shareddata.ClusterSerializable
readFromBuffer, writeToBuffer

- Method Detail
  - buffer
```
static Buffer buffer()
```
    Create a new, empty buffer.
    
    Returns:
    
    the buffer
  - buffer
```
static Buffer buffer(int initialSizeHint)
```
    Create a new buffer given the initial size hint.
    If you know the buffer will require a certain size, providing the hint can prevent unnecessary re-allocations as the buffer is written to and resized.
    
    Parameters:
    
    initialSizeHint - the hint, in bytes
    
    Returns:
    
    the buffer
  - buffer
```
static Buffer buffer(String string)
```
    Create a new buffer from a string. The string will be UTF-8 encoded into the buffer.
    
    Parameters:
    
    string - the string
    
    Returns:
    
    the buffer
  - buffer
```
static Buffer buffer(String string,
                     String enc)
```
    Create a new buffer from a string and using the specified encoding. The string will be encoded into the buffer using the specified encoding.
    
    Parameters:
    
    string - the string
    
    Returns:
    
    the buffer
  - buffer
```
static Buffer buffer(byte[] bytes)
```
    Create a new buffer from a byte[]. The byte[] will be copied to form the buffer.
    
    Parameters:
    
    bytes - the byte array
    
    Returns:
    
    the buffer
  - buffer
```
@Deprecated
static Buffer buffer(ByteBuf byteBuf)
```
    Deprecated. removed from public API in Vert.x 5
    Create a new buffer from a Netty ByteBuf. Note that the returned buffer is backed by given Netty ByteBuf, so changes in the returned buffer are reflected in given Netty ByteBuf, and vice-versa.
    
    For example, both buffers in the code below share their data:
```
   Buffer src = Buffer.buffer();
   Buffer clone = Buffer.buffer(src.getByteBuf());
 
```
    Parameters:
    
    byteBuf - the Netty ByteBuf
    
    Returns:
    
    the buffer
  - toString
```
String toString()
```
    Returns a String representation of the Buffer with the UTF-8 encoding
    
    Overrides:
    
    toString in class Object
  - toString
```
String toString(String enc)
```
    Returns a String representation of the Buffer with the encoding specified by enc
  - toString
```
String toString(Charset enc)
```
    Returns a String representation of the Buffer with the encoding specified by enc
  - toJsonObject
```
JsonObject toJsonObject()
```
    Returns a JsonObject representation of this buffer's content.
  - toJsonArray
```
JsonArray toJsonArray()
```
    Returns a JsonArray representation of this buffer's content.
  - toJsonValue
```
default Object toJsonValue()
```
    Returns a Json value representation of this buffer's content.
    
    Returns:
    
    a Json value which can be a JsonArray, JsonObject, String, ... if the buffer contains an array, object, string, ...etc
  - toJson
```
@Deprecated
default Object toJson()
```
    Deprecated. instead use toJsonValue()
  - getByte
```
byte getByte(int pos)
```
    Returns the byte at position pos in the Buffer.
    
    Throws:
    
    IndexOutOfBoundsException - if the specified pos is less than 0 or pos + 1 is greater than the length of the Buffer.
  - getUnsignedByte
```
short getUnsignedByte(int pos)
```
    Returns the unsigned byte at position pos in the Buffer, as a short.
    
    Throws:
    
    IndexOutOfBoundsException - if the specified pos is less than 0 or pos + 1 is greater than the length of the Buffer.
  - getInt
```
int getInt(int pos)
```
    Returns the int at position pos in the Buffer.
    
    Throws:
    
    IndexOutOfBoundsException - if the specified pos is less than 0 or pos + 4 is greater than the length of the Buffer.
  - getIntLE
```
int getIntLE(int pos)
```
    Gets a 32-bit integer at the specified absolute index in this buffer with Little Endian Byte Order.
    
    Throws:
    
    IndexOutOfBoundsException - if the specified index is less than 0 or index + 4 is greater than this.capacity
  - getUnsignedInt
```
long getUnsignedInt(int pos)
```
    Returns the unsigned int at position pos in the Buffer, as a long.
    
    Throws:
    
    IndexOutOfBoundsException - if the specified pos is less than 0 or pos + 4 is greater than the length of the Buffer.
  - getUnsignedIntLE
```
long getUnsignedIntLE(int pos)
```
    Returns the unsigned int at position pos in the Buffer, as a long in Little Endian Byte Order.
    
    Throws:
    
    IndexOutOfBoundsException - if the specified pos is less than 0 or pos + 4 is greater than the length of the Buffer.
  - getLong
```
long getLong(int pos)
```
    Returns the long at position pos in the Buffer.
    
    Throws:
    
    IndexOutOfBoundsException - if the specified pos is less than 0 or pos + 8 is greater than the length of the Buffer.
  - getLongLE
```
long getLongLE(int pos)
```
    Gets a 64-bit long integer at the specified absolute index in this buffer in Little Endian Byte Order.
    
    Throws:
    
    IndexOutOfBoundsException - if the specified index is less than 0 or index + 8 is greater than the length of the Buffer.
  - getDouble
```
double getDouble(int pos)
```
    Returns the double at position pos in the Buffer.
    
    Throws:
    
    IndexOutOfBoundsException - if the specified pos is less than 0 or pos + 8 is greater than the length of the Buffer.
  - getFloat
```
float getFloat(int pos)
```
    Returns the float at position pos in the Buffer.
    
    Throws:
    
    IndexOutOfBoundsException - if the specified pos is less than 0 or pos + 4 is greater than the length of the Buffer.
  - getShort
```
short getShort(int pos)
```
    Returns the short at position pos in the Buffer.
    
    Throws:
    
    IndexOutOfBoundsException - if the specified pos is less than 0 or pos + 2 is greater than the length of the Buffer.
  - getShortLE
```
short getShortLE(int pos)
```
    Gets a 16-bit short integer at the specified absolute index in this buffer in Little Endian Byte Order.
    
    Throws:
    
    IndexOutOfBoundsException - if the specified index is less than 0 or index + 2 is greater than the length of the Buffer.
  - getUnsignedShort
```
int getUnsignedShort(int pos)
```
    Returns the unsigned short at position pos in the Buffer, as an int.
    
    Throws:
    
    IndexOutOfBoundsException - if the specified pos is less than 0 or pos + 2 is greater than the length of the Buffer.
  - getUnsignedShortLE
```
int getUnsignedShortLE(int pos)
```
    Gets an unsigned 16-bit short integer at the specified absolute index in this buffer in Little Endian Byte Order.
    
    Throws:
    
    IndexOutOfBoundsException - if the specified index is less than 0 or index + 2 is greater than the length of the Buffer.
  - getMedium
```
int getMedium(int pos)
```
    Gets a 24-bit medium integer at the specified absolute index in this buffer.
    
    Throws:
    
    IndexOutOfBoundsException - if the specified index is less than 0 or index + 3 is greater than the length of the Buffer.
  - getMediumLE
```
int getMediumLE(int pos)
```
    Gets a 24-bit medium integer at the specified absolute index in this buffer in the Little Endian Byte Order.
    
    Throws:
    
    IndexOutOfBoundsException - if the specified index is less than 0 or index + 3 is greater than the length of the Buffer.
  - getUnsignedMedium
```
int getUnsignedMedium(int pos)
```
    Gets an unsigned 24-bit medium integer at the specified absolute index in this buffer.
    
    Throws:
    
    IndexOutOfBoundsException - if the specified index is less than 0 or index + 3 is greater than the length of the Buffer.
  - getUnsignedMediumLE
```
int getUnsignedMediumLE(int pos)
```
    Gets an unsigned 24-bit medium integer at the specified absolute index in this buffer in Little Endian Byte Order.
    
    Throws:
    
    IndexOutOfBoundsException - if the specified index is less than 0 or index + 3 is greater than the length of the Buffer.
  - getBytes
```
byte[] getBytes()
```
    Returns a copy of the entire Buffer as a byte[]
  - getBytes
```
byte[] getBytes(int start,
                int end)
```
    Returns a copy of a sub-sequence the Buffer as a byte[] starting at position start and ending at position end - 1
  - getBytes
```
Buffer getBytes(byte[] dst)
```
    Transfers the content of the Buffer into a byte[].
    
    Parameters:
    
    dst - the destination byte array
    
    Throws:
    
    IndexOutOfBoundsException - if the content of the Buffer cannot fit into the destination byte array
  - getBytes
```
Buffer getBytes(byte[] dst,
                int dstIndex)
```
    Transfers the content of the Buffer into a byte[] at the specific destination.
    
    Parameters:
    
    dst - the destination byte array
    
    Throws:
    
    IndexOutOfBoundsException - if the content of the Buffer cannot fit into the destination byte array
  - getBytes
```
Buffer getBytes(int start,
                int end,
                byte[] dst)
```
    Transfers the content of the Buffer starting at position start and ending at position end - 1 into a byte[].
    
    Parameters:
    
    dst - the destination byte array
    
    Throws:
    
    IndexOutOfBoundsException - if the content of the Buffer cannot fit into the destination byte array
  - getBytes
```
Buffer getBytes(int start,
                int end,
                byte[] dst,
                int dstIndex)
```
    Transfers the content of the Buffer starting at position start and ending at position end - 1 into a byte[] at the specific destination.
    
    Parameters:
    
    dst - the destination byte array
    
    Throws:
    
    IndexOutOfBoundsException - if the content of the Buffer cannot fit into the destination byte array
  - getBuffer
```
Buffer getBuffer(int start,
                 int end)
```
    Returns a copy of a sub-sequence the Buffer as a Buffer starting at position start and ending at position end - 1
  - getString
```
String getString(int start,
                 int end,
                 String enc)
```
    Returns a copy of a sub-sequence the Buffer as a String starting at position start and ending at position end - 1 interpreted as a String in the specified encoding
  - getString
```
String getString(int start,
                 int end)
```
    Returns a copy of a sub-sequence the Buffer as a String starting at position start and ending at position end - 1 interpreted as a String in UTF-8 encoding
  - appendBuffer
```
Buffer appendBuffer(Buffer buff)
```
    Appends the specified Buffer to the end of this Buffer. The buffer will expand as necessary to accommodate any bytes written.
    Returns a reference to this so multiple operations can be appended together.
  - appendBuffer
```
Buffer appendBuffer(Buffer buff,
                    int offset,
                    int len)
```
    Appends the specified Buffer starting at the offset using len to the end of this Buffer. The buffer will expand as necessary to accommodate any bytes written.
    Returns a reference to this so multiple operations can be appended together.
  - appendBytes
```
Buffer appendBytes(byte[] bytes)
```
    Appends the specified byte[] to the end of the Buffer. The buffer will expand as necessary to accommodate any bytes written.
    Returns a reference to this so multiple operations can be appended together.
  - appendBytes
```
Buffer appendBytes(byte[] bytes,
                   int offset,
                   int len)
```
    Appends the specified number of bytes from byte[] to the end of the Buffer, starting at the given offset. The buffer will expand as necessary to accommodate any bytes written.
    Returns a reference to this so multiple operations can be appended together.
  - appendByte
```
Buffer appendByte(byte b)
```
    Appends the specified byte to the end of the Buffer. The buffer will expand as necessary to accommodate any bytes written.
    Returns a reference to this so multiple operations can be appended together.
  - appendUnsignedByte
```
Buffer appendUnsignedByte(short b)
```
    Appends the specified unsigned byte to the end of the Buffer. The buffer will expand as necessary to accommodate any bytes written.
    Returns a reference to this so multiple operations can be appended together.
  - appendInt
```
Buffer appendInt(int i)
```
    Appends the specified int to the end of the Buffer. The buffer will expand as necessary to accommodate any bytes written.
    Returns a reference to this so multiple operations can be appended together.
  - appendIntLE
```
Buffer appendIntLE(int i)
```
    Appends the specified int to the end of the Buffer in the Little Endian Byte Order. The buffer will expand as necessary to accommodate any bytes written.
    Returns a reference to this so multiple operations can be appended together.
  - appendUnsignedInt
```
Buffer appendUnsignedInt(long i)
```
    Appends the specified unsigned int to the end of the Buffer. The buffer will expand as necessary to accommodate any bytes written.
    Returns a reference to this so multiple operations can be appended together.
  - appendUnsignedIntLE
```
Buffer appendUnsignedIntLE(long i)
```
    Appends the specified unsigned int to the end of the Buffer in the Little Endian Byte Order. The buffer will expand as necessary to accommodate any bytes written.
    Returns a reference to this so multiple operations can be appended together.
  - appendMedium
```
Buffer appendMedium(int i)
```
    Appends the specified 24bit int to the end of the Buffer. The buffer will expand as necessary to accommodate any bytes written.
    Returns a reference to this so multiple operations can be appended together.
  - appendMediumLE
```
Buffer appendMediumLE(int i)
```
    Appends the specified 24bit int to the end of the Buffer in the Little Endian Byte Order. The buffer will expand as necessary to accommodate any bytes written.
    Returns a reference to this so multiple operations can be appended together.
  - appendLong
```
Buffer appendLong(long l)
```
    Appends the specified long to the end of the Buffer. The buffer will expand as necessary to accommodate any bytes written.
    Returns a reference to this so multiple operations can be appended together.
  - appendLongLE
```
Buffer appendLongLE(long l)
```
    Appends the specified long to the end of the Buffer in the Little Endian Byte Order. The buffer will expand as necessary to accommodate any bytes written.
    Returns a reference to this so multiple operations can be appended together.
  - appendShort
```
Buffer appendShort(short s)
```
    Appends the specified short to the end of the Buffer.The buffer will expand as necessary to accommodate any bytes written.
    Returns a reference to this so multiple operations can be appended together.
  - appendShortLE
```
Buffer appendShortLE(short s)
```
    Appends the specified short to the end of the Buffer in the Little Endian Byte Order.The buffer will expand as necessary to accommodate any bytes written.
    Returns a reference to this so multiple operations can be appended together.
  - appendUnsignedShort
```
Buffer appendUnsignedShort(int s)
```
    Appends the specified unsigned short to the end of the Buffer.The buffer will expand as necessary to accommodate any bytes written.
    Returns a reference to this so multiple operations can be appended together.
  - appendUnsignedShortLE
```
Buffer appendUnsignedShortLE(int s)
```
    Appends the specified unsigned short to the end of the Buffer in the Little Endian Byte Order.The buffer will expand as necessary to accommodate any bytes written.
    Returns a reference to this so multiple operations can be appended together.
  - appendFloat
```
Buffer appendFloat(float f)
```
    Appends the specified float to the end of the Buffer. The buffer will expand as necessary to accommodate any bytes written.
    Returns a reference to this so multiple operations can be appended together.
  - appendDouble
```
Buffer appendDouble(double d)
```
    Appends the specified double to the end of the Buffer. The buffer will expand as necessary to accommodate any bytes written.
    Returns a reference to this so multiple operations can be appended together.
  - appendString
```
Buffer appendString(String str,
                    String enc)
```
    Appends the specified String to the end of the Buffer with the encoding as specified by enc.
    The buffer will expand as necessary to accommodate any bytes written.
    Returns a reference to this so multiple operations can be appended together.
  - appendString
```
Buffer appendString(String str)
```
    Appends the specified String str to the end of the Buffer with UTF-8 encoding.
    The buffer will expand as necessary to accommodate any bytes written.
    Returns a reference to this so multiple operations can be appended together
  - setByte
```
Buffer setByte(int pos,
               byte b)
```
    Sets the byte at position pos in the Buffer to the value b.
    The buffer will expand as necessary to accommodate any value written.
  - setUnsignedByte
```
Buffer setUnsignedByte(int pos,
                       short b)
```
    Sets the unsigned byte at position pos in the Buffer to the value b.
    The buffer will expand as necessary to accommodate any value written.
  - setInt
```
Buffer setInt(int pos,
              int i)
```
    Sets the int at position pos in the Buffer to the value i.
    The buffer will expand as necessary to accommodate any value written.
  - setIntLE
```
Buffer setIntLE(int pos,
                int i)
```
    Sets the int at position pos in the Buffer to the value i in the Little Endian Byte Order.
    The buffer will expand as necessary to accommodate any value written.
  - setUnsignedInt
```
Buffer setUnsignedInt(int pos,
                      long i)
```
    Sets the unsigned int at position pos in the Buffer to the value i.
    The buffer will expand as necessary to accommodate any value written.
  - setUnsignedIntLE
```
Buffer setUnsignedIntLE(int pos,
                        long i)
```
    Sets the unsigned int at position pos in the Buffer to the value i in the Little Endian Byte Order.
    The buffer will expand as necessary to accommodate any value written.
  - setMedium
```
Buffer setMedium(int pos,
                 int i)
```
    Sets the 24bit int at position pos in the Buffer to the value i.
    The buffer will expand as necessary to accommodate any value written.
  - setMediumLE
```
Buffer setMediumLE(int pos,
                   int i)
```
    Sets the 24bit int at position pos in the Buffer to the value i. in the Little Endian Byte Order
    The buffer will expand as necessary to accommodate any value written.
  - setLong
```
Buffer setLong(int pos,
               long l)
```
    Sets the long at position pos in the Buffer to the value l.
    The buffer will expand as necessary to accommodate any value written.
  - setLongLE
```
Buffer setLongLE(int pos,
                 long l)
```
    Sets the long at position pos in the Buffer to the value l in the Little Endian Byte Order.
    The buffer will expand as necessary to accommodate any value written.
  - setDouble
```
Buffer setDouble(int pos,
                 double d)
```
    Sets the double at position pos in the Buffer to the value d.
    The buffer will expand as necessary to accommodate any value written.
  - setFloat
```
Buffer setFloat(int pos,
                float f)
```
    Sets the float at position pos in the Buffer to the value f.
    The buffer will expand as necessary to accommodate any value written.
  - setShort
```
Buffer setShort(int pos,
                short s)
```
    Sets the short at position pos in the Buffer to the value s.
    The buffer will expand as necessary to accommodate any value written.
  - setShortLE
```
Buffer setShortLE(int pos,
                  short s)
```
    Sets the short at position pos in the Buffer to the value s in the Little Endian Byte Order.
    The buffer will expand as necessary to accommodate any value written.
  - setUnsignedShort
```
Buffer setUnsignedShort(int pos,
                        int s)
```
    Sets the unsigned short at position pos in the Buffer to the value s.
    The buffer will expand as necessary to accommodate any value written.
  - setUnsignedShortLE
```
Buffer setUnsignedShortLE(int pos,
                          int s)
```
    Sets the unsigned short at position pos in the Buffer to the value s in the Little Endian Byte Order.
    The buffer will expand as necessary to accommodate any value written.
  - setBuffer
```
Buffer setBuffer(int pos,
                 Buffer b)
```
    Sets the bytes at position pos in the Buffer to the bytes represented by the Buffer b.
    The buffer will expand as necessary to accommodate any value written.
  - setBuffer
```
Buffer setBuffer(int pos,
                 Buffer b,
                 int offset,
                 int len)
```
    Sets the bytes at position pos in the Buffer to the bytes represented by the Buffer b on the given offset and len.
    The buffer will expand as necessary to accommodate any value written.
  - setBytes
```
Buffer setBytes(int pos,
                ByteBuffer b)
```
    Sets the bytes at position pos in the Buffer to the bytes represented by the ByteBuffer b.
    The buffer will expand as necessary to accommodate any value written.
  - setBytes
```
Buffer setBytes(int pos,
                byte[] b)
```
    Sets the bytes at position pos in the Buffer to the bytes represented by the byte[] b.
    The buffer will expand as necessary to accommodate any value written.
  - setBytes
```
Buffer setBytes(int pos,
                byte[] b,
                int offset,
                int len)
```
    Sets the given number of bytes at position pos in the Buffer to the bytes represented by the byte[] b.
    The buffer will expand as necessary to accommodate any value written.
  - setString
```
Buffer setString(int pos,
                 String str)
```
    Sets the bytes at position pos in the Buffer to the value of str encoded in UTF-8.
    The buffer will expand as necessary to accommodate any value written.
  - setString
```
Buffer setString(int pos,
                 String str,
                 String enc)
```
    Sets the bytes at position pos in the Buffer to the value of str encoded in encoding enc.
    The buffer will expand as necessary to accommodate any value written.
  - length
```
int length()
```
    Returns the length of the buffer, measured in bytes. All positions are indexed from zero.
  - copy
```
Buffer copy()
```
    Returns a copy of the entire Buffer.
    
    Specified by:
    
    copy in interface Shareable
  - slice
```
Buffer slice()
```
    Returns a slice of this buffer. Modifying the content of the returned buffer or this buffer affects each other's content while they maintain separate indexes and marks.
  - slice
```
Buffer slice(int start,
             int end)
```
    Returns a slice of this buffer. Modifying the content of the returned buffer or this buffer affects each other's content while they maintain separate indexes and marks.
  - getByteBuf
```
@Deprecated
ByteBuf getByteBuf()
```
    Deprecated. removed from public API in Vert.x 5
    
    Returns the Buffer as a Netty ByteBuf.
    The returned buffer is a duplicate that maintain its own indices.

Interface Buffer

Method Summary

Methods inherited from interface io.vertx.core.shareddata.ClusterSerializable

Method Detail

buffer

buffer

buffer

buffer

buffer

buffer

toString

toString

toString

toJsonObject

toJsonArray

toJsonValue

toJson

getByte

getUnsignedByte

getInt

getIntLE

getUnsignedInt

getUnsignedIntLE

getLong

getLongLE

getDouble

getFloat

getShort

getShortLE

getUnsignedShort

getUnsignedShortLE

getMedium

getMediumLE

getUnsignedMedium

getUnsignedMediumLE

getBytes

getBytes

getBytes

getBytes

getBytes

getBytes

getBuffer

getString

getString

appendBuffer

appendBuffer

appendBytes

appendBytes

appendByte

appendUnsignedByte

appendInt

appendIntLE

appendUnsignedInt

appendUnsignedIntLE

appendMedium

appendMediumLE

appendLong

appendLongLE

appendShort

appendShortLE

appendUnsignedShort

appendUnsignedShortLE

appendFloat

appendDouble

appendString

appendString

setByte

setUnsignedByte

setInt

setIntLE

setUnsignedInt

setUnsignedIntLE

setMedium

setMediumLE

setLong

setLongLE

setDouble

setFloat

setShort

setShortLE