Uses of Interface
io.vertx.core.buffer.Buffer

Packages that use Buffer

Package	Description
io.vertx.core.buffer	== Buffers :toc: left Most data is shuffled around inside Vert.x using buffers.
io.vertx.core.datagram	== Datagram sockets (UDP) Using User Datagram Protocol (UDP) with Vert.x is a piece of cake.
io.vertx.core.dns	== DNS client Often you will find yourself in situations where you need to obtain DNS informations in an asynchronous fashion.
io.vertx.core.eventbus	== The Event Bus :toc: left The event bus is the *nervous system* of Vert.x.
io.vertx.core.file	== Using the file system with Vert.x The Vert.x FileSystem object provides many operations for manipulating the file system.
io.vertx.core.http	== Writing HTTP servers and clients Vert.x allows you to easily write non blocking HTTP clients and servers.
io.vertx.core.json
io.vertx.core.net	== Writing TCP servers and clients Vert.x allows you to easily write non blocking TCP clients and servers.
io.vertx.core.parsetools	== Record Parser The record parser allows you to easily parse protocols which are delimited by a sequence of bytes, or fixed size records.
io.vertx.core.spi

Uses of Buffer in io.vertx.core.buffer

Methods in io.vertx.core.buffer that return Buffer

Modifier and Type	Method and Description
Buffer	Buffer.appendBuffer(Buffer buff) Appends the specified Buffer to the end of this Buffer.
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	Buffer.appendByte(byte b) Appends the specified byte to the end of the Buffer.
Buffer	Buffer.appendBytes(byte[] bytes) Appends the specified byte[] to the end of the Buffer.
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	Buffer.appendDouble(double d) Appends the specified double to the end of the Buffer.
Buffer	Buffer.appendFloat(float f) Appends the specified float to the end of the Buffer.
Buffer	Buffer.appendInt(int i) Appends the specified int to the end of the Buffer.
Buffer	Buffer.appendIntLE(int i) Appends the specified int to the end of the Buffer in the Little Endian Byte Order.
Buffer	Buffer.appendLong(long l) Appends the specified long to the end of the Buffer.
Buffer	Buffer.appendLongLE(long l) Appends the specified long to the end of the Buffer in the Little Endian Byte Order.
Buffer	Buffer.appendMedium(int i) Appends the specified 24bit int to the end of the Buffer.
Buffer	Buffer.appendMediumLE(int i) Appends the specified 24bit int to the end of the Buffer in the Little Endian Byte Order.
Buffer	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	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	Buffer.appendString(String str) Appends the specified String str to the end of the Buffer with UTF-8 encoding.
Buffer	Buffer.appendString(String str, String enc) Appends the specified String to the end of the Buffer with the encoding as specified by enc.
Buffer	Buffer.appendUnsignedByte(short b) Appends the specified unsigned byte to the end of the Buffer.
Buffer	Buffer.appendUnsignedInt(long i) Appends the specified unsigned int to the end of the Buffer.
Buffer	Buffer.appendUnsignedIntLE(long i) Appends the specified unsigned int to the end of the Buffer in the Little Endian Byte Order.
Buffer	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	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.buffer() Create a new, empty buffer.
static Buffer	Buffer.buffer(byte[] bytes) Create a new buffer from a byte[].
static Buffer	Buffer.buffer(io.netty.buffer.ByteBuf byteBuf) Create a new buffer from a Netty ByteBuf.
static Buffer	Buffer.buffer(int initialSizeHint) Create a new buffer given the initial size hint.
static Buffer	Buffer.buffer(String string) Create a new buffer from a string.
static Buffer	Buffer.buffer(String string, String enc) Create a new buffer from a string and using the specified encoding.
Buffer	Buffer.copy() Returns a copy of the entire Buffer.
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
Buffer	Buffer.getBytes(byte[] dst) Transfers the content of the Buffer into a byte[].
Buffer	Buffer.getBytes(byte[] dst, int dstIndex) Transfers the content of the Buffer into a byte[] at the specific destination.
Buffer	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	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.
Buffer	Buffer.setBuffer(int pos, Buffer b) Sets the bytes at position pos in the Buffer to the bytes represented by the Buffer b.
Buffer	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	Buffer.setByte(int pos, byte b) Sets the byte at position pos in the Buffer to the value b.
Buffer	Buffer.setBytes(int pos, byte[] b) Sets the bytes at position pos in the Buffer to the bytes represented by the byte[] b.
Buffer	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	Buffer.setBytes(int pos, ByteBuffer b) Sets the bytes at position pos in the Buffer to the bytes represented by the ByteBuffer b.
Buffer	Buffer.setDouble(int pos, double d) Sets the double at position pos in the Buffer to the value d.
Buffer	Buffer.setFloat(int pos, float f) Sets the float at position pos in the Buffer to the value f.
Buffer	Buffer.setInt(int pos, int i) Sets the int at position pos in the Buffer to the value i.
Buffer	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	Buffer.setLong(int pos, long l) Sets the long at position pos in the Buffer to the value l.
Buffer	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	Buffer.setMedium(int pos, int i) Sets the 24bit int at position pos in the Buffer to the value i.
Buffer	Buffer.setMediumLE(int pos, int i) Sets the 24bit int at position pos in the Buffer to the value i.
Buffer	Buffer.setShort(int pos, short s) Sets the short at position pos in the Buffer to the value s.
Buffer	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	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	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	Buffer.setUnsignedByte(int pos, short b) Sets the unsigned byte at position pos in the Buffer to the value b.
Buffer	Buffer.setUnsignedInt(int pos, long i) Sets the unsigned int at position pos in the Buffer to the value i.
Buffer	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	Buffer.setUnsignedShort(int pos, int s) Sets the unsigned short at position pos in the Buffer to the value s.
Buffer	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	Buffer.slice() Returns a slice of this buffer.
Buffer	Buffer.slice(int start, int end) Returns a slice of this buffer.

Methods in io.vertx.core.buffer with parameters of type Buffer

Modifier and Type	Method and Description
Buffer	Buffer.appendBuffer(Buffer buff) Appends the specified Buffer to the end of this Buffer.
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	Buffer.setBuffer(int pos, Buffer b) Sets the bytes at position pos in the Buffer to the bytes represented by the Buffer b.
Buffer	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.

Uses of Buffer in io.vertx.core.datagram

Methods in io.vertx.core.datagram that return Buffer

Modifier and Type	Method and Description
Buffer	DatagramPacket.data() Returns the data of the DatagramPacket

Methods in io.vertx.core.datagram with parameters of type Buffer

Modifier and Type	Method and Description
DatagramSocket	DatagramSocket.send(Buffer packet, int port, String host, Handler<AsyncResult<DatagramSocket>> handler) Write the given Buffer to the SocketAddress.
PacketWritestream	PacketWritestream.write(Buffer data)

Uses of Buffer in io.vertx.core.dns

Methods in io.vertx.core.dns that return Buffer

Modifier and Type	Method and Description
Buffer	AddressResolverOptions.getHostsValue()

Methods in io.vertx.core.dns with parameters of type Buffer

Modifier and Type	Method and Description
AddressResolverOptions	AddressResolverOptions.setHostsValue(Buffer hostsValue) Set an alternate hosts configuration file to use instead of the one provided by the os.

Uses of Buffer in io.vertx.core.eventbus

Methods in io.vertx.core.eventbus with parameters of type Buffer

Modifier and Type	Method and Description
EventBusOptions	EventBusOptions.addCrlValue(Buffer crlValue)
R	MessageCodec.decodeFromWire(int pos, Buffer buffer) Called by Vert.x when a message is decoded from the wire.
void	MessageCodec.encodeToWire(Buffer buffer, S s) Called by Vert.x when marshalling a message to the wire.

Uses of Buffer in io.vertx.core.file

Methods in io.vertx.core.file that return Buffer

Modifier and Type	Method and Description
Buffer	FileSystem.readFileBlocking(String path) Blocking version of FileSystem.readFile(String, Handler)

Methods in io.vertx.core.file with parameters of type Buffer

Modifier and Type	Method and Description
AsyncFile	AsyncFile.read(Buffer buffer, int offset, long position, int length, Handler<AsyncResult<Buffer>> handler) Reads length bytes of data from the file at position position in the file, asynchronously.
AsyncFile	AsyncFile.write(Buffer data)
AsyncFile	AsyncFile.write(Buffer buffer, long position, Handler<AsyncResult<Void>> handler) Write a Buffer to the file at position position in the file, asynchronously.
FileSystem	FileSystem.writeFile(String path, Buffer data, Handler<AsyncResult<Void>> handler) Creates the file, and writes the specified Buffer data to the file represented by the path path, asynchronously.
FileSystem	FileSystem.writeFileBlocking(String path, Buffer data) Blocking version of FileSystem.writeFile(String, Buffer, Handler)

Method parameters in io.vertx.core.file with type arguments of type Buffer

Modifier and Type	Method and Description
AsyncFile	AsyncFile.handler(Handler<Buffer> handler)
AsyncFile	AsyncFile.read(Buffer buffer, int offset, long position, int length, Handler<AsyncResult<Buffer>> handler) Reads length bytes of data from the file at position position in the file, asynchronously.
FileSystem	FileSystem.readFile(String path, Handler<AsyncResult<Buffer>> handler) Reads the entire file as represented by the path path as a Buffer, asynchronously.

Uses of Buffer in io.vertx.core.http

Methods in io.vertx.core.http that return Buffer

Modifier and Type	Method and Description
Buffer	WebSocketFrame.binaryData()
Buffer	GoAway.getDebugData()
Buffer	HttpFrame.payload()

Methods in io.vertx.core.http with parameters of type Buffer

Modifier and Type	Method and Description
HttpServerOptions	HttpServerOptions.addCrlValue(Buffer crlValue)
HttpClientOptions	HttpClientOptions.addCrlValue(Buffer crlValue)
static WebSocketFrame	WebSocketFrame.binaryFrame(Buffer data, boolean isFinal) Create a binary WebSocket frame.
static WebSocketFrame	WebSocketFrame.continuationFrame(Buffer data, boolean isFinal) Create a continuation frame
void	HttpServerResponse.end(Buffer chunk) Same as HttpServerResponse.end() but writes some data to the response body before ending.
void	HttpClientRequest.end(Buffer chunk) Same as HttpClientRequest.end() but writes some data to the request body before ending.
HttpConnection	HttpConnection.goAway(long errorCode, int lastStreamId, Buffer debugData) Send a go away frame to the remote endpoint of the connection.
HttpConnection	HttpConnection.ping(Buffer data, Handler<AsyncResult<Buffer>> pongHandler) Send a PING frame to the remote endpoint.
GoAway	GoAway.setDebugData(Buffer debugData) Set the additional debug data
WebSocketBase	WebSocketBase.write(Buffer data)
WebSocket	WebSocket.write(Buffer data)
ServerWebSocket	ServerWebSocket.write(Buffer data)
HttpServerResponse	HttpServerResponse.write(Buffer data)
HttpClientRequest	HttpClientRequest.write(Buffer data)
WebSocketBase	WebSocketBase.writeBinaryMessage(Buffer data) Writes a (potentially large) piece of binary data to the connection.
WebSocket	WebSocket.writeBinaryMessage(Buffer data)
ServerWebSocket	ServerWebSocket.writeBinaryMessage(Buffer data)
HttpServerResponse	HttpServerResponse.writeCustomFrame(int type, int flags, Buffer payload) Write an HTTP/2 frame to the response, allowing to extend the HTTP/2 protocol.
HttpClientRequest	HttpClientRequest.writeCustomFrame(int type, int flags, Buffer payload) Write an HTTP/2 frame to the request, allowing to extend the HTTP/2 protocol.
WebSocketBase	WebSocketBase.writeFinalBinaryFrame(Buffer data) Write a final WebSocket binary frame to the connection
WebSocket	WebSocket.writeFinalBinaryFrame(Buffer data)
ServerWebSocket	ServerWebSocket.writeFinalBinaryFrame(Buffer data)

Method parameters in io.vertx.core.http with type arguments of type Buffer

Modifier and Type	Method and Description
HttpClientResponse	HttpClientResponse.bodyHandler(Handler<Buffer> bodyHandler) Convenience method for receiving the entire request body in one piece.
WebSocketBase	WebSocketBase.handler(Handler<Buffer> handler)
WebSocket	WebSocket.handler(Handler<Buffer> handler)
ServerWebSocket	ServerWebSocket.handler(Handler<Buffer> handler)
HttpServerRequest	HttpServerRequest.handler(Handler<Buffer> handler)
HttpServerFileUpload	HttpServerFileUpload.handler(Handler<Buffer> handler)
HttpClientResponse	HttpClientResponse.handler(Handler<Buffer> handler)
HttpConnection	HttpConnection.ping(Buffer data, Handler<AsyncResult<Buffer>> pongHandler) Send a PING frame to the remote endpoint.

Uses of Buffer in io.vertx.core.json

Methods in io.vertx.core.json with parameters of type Buffer

Modifier and Type	Method and Description
int	JsonObject.readFromBuffer(int pos, Buffer buffer)
int	JsonArray.readFromBuffer(int pos, Buffer buffer)
void	JsonObject.writeToBuffer(Buffer buffer)
void	JsonArray.writeToBuffer(Buffer buffer)

Uses of Buffer in io.vertx.core.net

Methods in io.vertx.core.net that return Buffer

Modifier and Type	Method and Description
Buffer	PemKeyCertOptions.getCertValue() Get the certificate as a buffer
Buffer	PemKeyCertOptions.getKeyValue() Get the key as a buffer
Buffer	PfxOptions.getValue() Get the store as a buffer
Buffer	JksOptions.getValue() Get the key store as a buffer

Methods in io.vertx.core.net that return types with arguments of type Buffer

Modifier and Type	Method and Description
List<Buffer>	PemTrustOptions.getCertValues()
List<Buffer>	TCPSSLOptions.getCrlValues() Get the CRL values

Methods in io.vertx.core.net with parameters of type Buffer

Modifier and Type	Method and Description
PemTrustOptions	PemTrustOptions.addCertValue(Buffer certValue) Add a certificate value
TCPSSLOptions	TCPSSLOptions.addCrlValue(Buffer crlValue) Add a CRL value
NetServerOptions	NetServerOptions.addCrlValue(Buffer crlValue)
NetClientOptions	NetClientOptions.addCrlValue(Buffer crlValue)
PemKeyCertOptions	PemKeyCertOptions.setCertValue(Buffer certValue) Set the certificate as a buffer
PemKeyCertOptions	PemKeyCertOptions.setKeyValue(Buffer keyValue) Set the key a a buffer
PfxOptions	PfxOptions.setValue(Buffer value) Set the store as a buffer
JksOptions	JksOptions.setValue(Buffer value) Set the key store as a buffer
NetSocket	NetSocket.write(Buffer data)

Method parameters in io.vertx.core.net with type arguments of type Buffer

Modifier and Type	Method and Description
NetSocket	NetSocket.handler(Handler<Buffer> handler)

Uses of Buffer in io.vertx.core.parsetools

Methods in io.vertx.core.parsetools with parameters of type Buffer

Modifier and Type	Method and Description
void	RecordParser.delimitedMode(Buffer delim) Flip the parser into delimited mode, and where the delimiter can be represented by the delimiter delim.
void	RecordParser.handle(Buffer buffer) This method is called to provide the parser with data.
static RecordParser	RecordParser.newDelimited(Buffer delim, Handler<Buffer> output) Create a new RecordParser instance, initially in delimited mode, and where the delimiter can be represented by the Buffer delim.

Method parameters in io.vertx.core.parsetools with type arguments of type Buffer

Modifier and Type	Method and Description
static RecordParser	RecordParser.newDelimited(Buffer delim, Handler<Buffer> output) Create a new RecordParser instance, initially in delimited mode, and where the delimiter can be represented by the Buffer delim.
static RecordParser	RecordParser.newDelimited(String delim, Handler<Buffer> output) Create a new RecordParser instance, initially in delimited mode, and where the delimiter can be represented by the String delim endcoded in latin-1 .
static RecordParser	RecordParser.newFixed(int size, Handler<Buffer> output) Create a new RecordParser instance, initially in fixed size mode, and where the record size is specified by the size parameter.
void	RecordParser.setOutput(Handler<Buffer> output)

Uses of Buffer in io.vertx.core.spi

Methods in io.vertx.core.spi that return Buffer

Modifier and Type	Method and Description
Buffer	BufferFactory.buffer()
Buffer	BufferFactory.buffer(byte[] bytes)
Buffer	BufferFactory.buffer(io.netty.buffer.ByteBuf byteBuffer)
Buffer	BufferFactory.buffer(int initialSizeHint)
Buffer	BufferFactory.buffer(String str)
Buffer	BufferFactory.buffer(String str, String enc)

Methods in io.vertx.core.spi with parameters of type Buffer

Modifier and Type	Method and Description
WebSocketFrame	WebSocketFrameFactory.binaryFrame(Buffer data, boolean isFinal)
WebSocketFrame	WebSocketFrameFactory.continuationFrame(Buffer data, boolean isFinal)