Class FixedCompositeByteBuf

    • Field Detail

      • EMPTY

        private static final ByteBuf[] EMPTY
      • nioBufferCount

        private final int nioBufferCount
      • capacity

        private final int capacity
      • order

        private final java.nio.ByteOrder order
      • buffers

        private final ByteBuf[] buffers
      • direct

        private final boolean direct
    • Method Detail

      • isWritable

        public boolean isWritable()
        Description copied from class: ByteBuf
        Returns true if and only if (this.capacity - this.writerIndex) is greater than 0.
        Overrides:
        isWritable in class AbstractByteBuf
      • isWritable

        public boolean isWritable​(int size)
        Description copied from class: ByteBuf
        Returns true if and only if this buffer has enough room to allow writing the specified number of elements.
        Overrides:
        isWritable in class AbstractByteBuf
      • discardReadBytes

        public ByteBuf discardReadBytes()
        Description copied from class: ByteBuf
        Discards the bytes between the 0th index and readerIndex. It moves the bytes between readerIndex and writerIndex to the 0th index, and sets readerIndex and writerIndex to 0 and oldWriterIndex - oldReaderIndex respectively.

        Please refer to the class documentation for more detailed explanation.

        Overrides:
        discardReadBytes in class AbstractByteBuf
      • setBytes

        public ByteBuf setBytes​(int index,
                                ByteBuf src,
                                int srcIndex,
                                int length)
        Description copied from class: ByteBuf
        Transfers the specified source buffer's data to this buffer starting at the specified absolute index. This method does not modify readerIndex or writerIndex of both the source (i.e. this) and the destination.
        Specified by:
        setBytes in class ByteBuf
        srcIndex - the first index of the source
        length - the number of bytes to transfer
      • setBytes

        public ByteBuf setBytes​(int index,
                                byte[] src,
                                int srcIndex,
                                int length)
        Description copied from class: ByteBuf
        Transfers the specified source array's data to this buffer starting at the specified absolute index. This method does not modify readerIndex or writerIndex of this buffer.
        Specified by:
        setBytes in class ByteBuf
      • setBytes

        public ByteBuf setBytes​(int index,
                                java.nio.ByteBuffer src)
        Description copied from class: ByteBuf
        Transfers the specified source buffer's data to this buffer starting at the specified absolute index until the source buffer's position reaches its limit. This method does not modify readerIndex or writerIndex of this buffer.
        Specified by:
        setBytes in class ByteBuf
      • setByte

        public ByteBuf setByte​(int index,
                               int value)
        Description copied from class: ByteBuf
        Sets the specified byte at the specified absolute index in this buffer. The 24 high-order bits of the specified value are ignored. This method does not modify readerIndex or writerIndex of this buffer.
        Overrides:
        setByte in class AbstractByteBuf
      • setShort

        public ByteBuf setShort​(int index,
                                int value)
        Description copied from class: ByteBuf
        Sets the specified 16-bit short integer at the specified absolute index in this buffer. The 16 high-order bits of the specified value are ignored. This method does not modify readerIndex or writerIndex of this buffer.
        Overrides:
        setShort in class AbstractByteBuf
      • setMedium

        public ByteBuf setMedium​(int index,
                                 int value)
        Description copied from class: ByteBuf
        Sets the specified 24-bit medium integer at the specified absolute index in this buffer. Please note that the most significant byte is ignored in the specified value. This method does not modify readerIndex or writerIndex of this buffer.
        Overrides:
        setMedium in class AbstractByteBuf
      • setInt

        public ByteBuf setInt​(int index,
                              int value)
        Description copied from class: ByteBuf
        Sets the specified 32-bit integer at the specified absolute index in this buffer. This method does not modify readerIndex or writerIndex of this buffer.
        Overrides:
        setInt in class AbstractByteBuf
      • _setInt

        protected void _setInt​(int index,
                               int value)
        Specified by:
        _setInt in class AbstractByteBuf
      • setLong

        public ByteBuf setLong​(int index,
                               long value)
        Description copied from class: ByteBuf
        Sets the specified 64-bit long integer at the specified absolute index in this buffer. This method does not modify readerIndex or writerIndex of this buffer.
        Overrides:
        setLong in class AbstractByteBuf
      • setBytes

        public int setBytes​(int index,
                            java.io.InputStream in,
                            int length)
        Description copied from class: ByteBuf
        Transfers the content of the specified source stream to this buffer starting at the specified absolute index. This method does not modify readerIndex or writerIndex of this buffer.
        Specified by:
        setBytes in class ByteBuf
        length - the number of bytes to transfer
        Returns:
        the actual number of bytes read in from the specified channel. -1 if the specified InputStream reached EOF.
      • setBytes

        public int setBytes​(int index,
                            java.nio.channels.ScatteringByteChannel in,
                            int length)
        Description copied from class: ByteBuf
        Transfers the content of the specified source channel to this buffer starting at the specified absolute index. This method does not modify readerIndex or writerIndex of this buffer.
        Specified by:
        setBytes in class ByteBuf
        length - the maximum number of bytes to transfer
        Returns:
        the actual number of bytes read in from the specified channel. -1 if the specified channel is closed or it reached EOF.
      • setBytes

        public int setBytes​(int index,
                            java.nio.channels.FileChannel in,
                            long position,
                            int length)
        Description copied from class: ByteBuf
        Transfers the content of the specified source channel starting at the given file position to this buffer starting at the specified absolute index. This method does not modify readerIndex or writerIndex of this buffer. This method does not modify the channel's position.
        Specified by:
        setBytes in class ByteBuf
        position - the file position at which the transfer is to begin
        length - the maximum number of bytes to transfer
        Returns:
        the actual number of bytes read in from the specified channel. -1 if the specified channel is closed or it reached EOF.
      • capacity

        public int capacity()
        Description copied from class: ByteBuf
        Returns the number of bytes (octets) this buffer can contain.
        Specified by:
        capacity in class ByteBuf
      • capacity

        public ByteBuf capacity​(int newCapacity)
        Description copied from class: ByteBuf
        Adjusts the capacity of this buffer. If the newCapacity is less than the current capacity, the content of this buffer is truncated. If the newCapacity is greater than the current capacity, the buffer is appended with unspecified data whose length is (newCapacity - currentCapacity).
        Specified by:
        capacity in class ByteBuf
      • order

        public java.nio.ByteOrder order()
        Description copied from class: ByteBuf
        Returns the endianness of this buffer.
        Specified by:
        order in class ByteBuf
      • unwrap

        public ByteBuf unwrap()
        Description copied from class: ByteBuf
        Return the underlying buffer instance if this buffer is a wrapper of another buffer.
        Specified by:
        unwrap in class ByteBuf
        Returns:
        null if this buffer is not a wrapper
      • isDirect

        public boolean isDirect()
        Description copied from class: ByteBuf
        Returns true if and only if this buffer is backed by an NIO direct buffer.
        Specified by:
        isDirect in class ByteBuf
      • buffer

        private ByteBuf buffer​(int i)
        Return the ByteBuf stored at the given index of the array.
      • getByte

        public byte getByte​(int index)
        Description copied from class: ByteBuf
        Gets a byte at the specified absolute index in this buffer. This method does not modify readerIndex or writerIndex of this buffer.
        Overrides:
        getByte in class AbstractByteBuf
      • getBytes

        public ByteBuf getBytes​(int index,
                                byte[] dst,
                                int dstIndex,
                                int length)
        Description copied from class: ByteBuf
        Transfers this buffer's data to the specified destination starting at the specified absolute index. This method does not modify readerIndex or writerIndex of this buffer.
        Specified by:
        getBytes in class ByteBuf
        dstIndex - the first index of the destination
        length - the number of bytes to transfer
      • getBytes

        public ByteBuf getBytes​(int index,
                                java.nio.ByteBuffer dst)
        Description copied from class: ByteBuf
        Transfers this buffer's data to the specified destination starting at the specified absolute index until the destination's position reaches its limit. This method does not modify readerIndex or writerIndex of this buffer while the destination's position will be increased.
        Specified by:
        getBytes in class ByteBuf
      • getBytes

        public ByteBuf getBytes​(int index,
                                ByteBuf dst,
                                int dstIndex,
                                int length)
        Description copied from class: ByteBuf
        Transfers this buffer's data to the specified destination starting at the specified absolute index. This method does not modify readerIndex or writerIndex of both the source (i.e. this) and the destination.
        Specified by:
        getBytes in class ByteBuf
        dstIndex - the first index of the destination
        length - the number of bytes to transfer
      • getBytes

        public int getBytes​(int index,
                            java.nio.channels.GatheringByteChannel out,
                            int length)
                     throws java.io.IOException
        Description copied from class: ByteBuf
        Transfers this buffer's data to the specified channel starting at the specified absolute index. This method does not modify readerIndex or writerIndex of this buffer.
        Specified by:
        getBytes in class ByteBuf
        length - the maximum number of bytes to transfer
        Returns:
        the actual number of bytes written out to the specified channel
        Throws:
        java.io.IOException - if the specified channel threw an exception during I/O
      • getBytes

        public int getBytes​(int index,
                            java.nio.channels.FileChannel out,
                            long position,
                            int length)
                     throws java.io.IOException
        Description copied from class: ByteBuf
        Transfers this buffer's data starting at the specified absolute index to the specified channel starting at the given file position. This method does not modify readerIndex or writerIndex of this buffer. This method does not modify the channel's position.
        Specified by:
        getBytes in class ByteBuf
        position - the file position at which the transfer is to begin
        length - the maximum number of bytes to transfer
        Returns:
        the actual number of bytes written out to the specified channel
        Throws:
        java.io.IOException - if the specified channel threw an exception during I/O
      • getBytes

        public ByteBuf getBytes​(int index,
                                java.io.OutputStream out,
                                int length)
                         throws java.io.IOException
        Description copied from class: ByteBuf
        Transfers this buffer's data to the specified stream starting at the specified absolute index. This method does not modify readerIndex or writerIndex of this buffer.
        Specified by:
        getBytes in class ByteBuf
        length - the number of bytes to transfer
        Throws:
        java.io.IOException - if the specified stream threw an exception during I/O
      • copy

        public ByteBuf copy​(int index,
                            int length)
        Description copied from class: ByteBuf
        Returns a copy of this buffer's sub-region. Modifying the content of the returned buffer or this buffer does not affect each other at all. This method does not modify readerIndex or writerIndex of this buffer.
        Specified by:
        copy in class ByteBuf
      • nioBuffer

        public java.nio.ByteBuffer nioBuffer​(int index,
                                             int length)
        Description copied from class: ByteBuf
        Exposes this buffer's sub-region as an NIO ByteBuffer. The returned buffer either share or contains the copied content of this buffer, while changing the position and limit of the returned NIO buffer does not affect the indexes and marks of this buffer. This method does not modify readerIndex or writerIndex of this buffer. Please note that the returned NIO buffer will not see the changes of this buffer if this buffer is a dynamic buffer and it adjusted its capacity.
        Specified by:
        nioBuffer in class ByteBuf
        See Also:
        ByteBuf.nioBufferCount(), ByteBuf.nioBuffers(), ByteBuf.nioBuffers(int, int)
      • internalNioBuffer

        public java.nio.ByteBuffer internalNioBuffer​(int index,
                                                     int length)
        Description copied from class: ByteBuf
        Internal use only: Exposes the internal NIO buffer.
        Specified by:
        internalNioBuffer in class ByteBuf
      • nioBuffers

        public java.nio.ByteBuffer[] nioBuffers​(int index,
                                                int length)
        Description copied from class: ByteBuf
        Exposes this buffer's bytes as an NIO ByteBuffer's for the specified index and length The returned buffer either share or contains the copied content of this buffer, while changing the position and limit of the returned NIO buffer does not affect the indexes and marks of this buffer. This method does not modify readerIndex or writerIndex of this buffer. Please note that the returned NIO buffer will not see the changes of this buffer if this buffer is a dynamic buffer and it adjusted its capacity.
        Specified by:
        nioBuffers in class ByteBuf
        See Also:
        ByteBuf.nioBufferCount(), ByteBuf.nioBuffer(), ByteBuf.nioBuffer(int, int)
      • array

        public byte[] array()
        Description copied from class: ByteBuf
        Returns the backing byte array of this buffer.
        Specified by:
        array in class ByteBuf
      • arrayOffset

        public int arrayOffset()
        Description copied from class: ByteBuf
        Returns the offset of the first byte within the backing byte array of this buffer.
        Specified by:
        arrayOffset in class ByteBuf
      • hasMemoryAddress

        public boolean hasMemoryAddress()
        Description copied from class: ByteBuf
        Returns true if and only if this buffer has a reference to the low-level memory address that points to the backing data.
        Specified by:
        hasMemoryAddress in class ByteBuf
      • memoryAddress

        public long memoryAddress()
        Description copied from class: ByteBuf
        Returns the low-level memory address that point to the first byte of ths backing data.
        Specified by:
        memoryAddress in class ByteBuf