Package org.bson.io

Interface BsonInput

  • All Superinterfaces:
    AutoCloseable, Closeable
    All Known Implementing Classes:
    ByteBufferBsonInput
    public interface BsonInput
extends Closeable
    An input stream that is optimized for reading BSON values directly from the underlying stream.
    Since:
    3.0

    • Method Summary

      All Methods Instance Methods Abstract Methods 
      Modifier and Type Method Description
      void close()  
      BsonInputMark getMark​(int readLimit)
      Gets a mark for the current position in the stream.
      int getPosition()
      Gets the current position in the stream
      boolean hasRemaining()
      Returns true if there are more bytes left in the stream.
      byte readByte()
      Reads a single byte from the stream
      void readBytes​(byte[] bytes)
      Reads the specified number of bytes into the given byte array.
      void readBytes​(byte[] bytes, int offset, int length)
      Reads the specified number of bytes into the given byte array starting at the specified offset.
      String readCString()
      Reads a BSON CString value from the stream.
      double readDouble()
      Reads a BSON Double value from the stream.
      int readInt32()
      Reads a BSON Int32 value from the stream.
      long readInt64()
      Reads a BSON Int64 value from the stream.
      ObjectId readObjectId()
      Reads a BSON ObjectId value from the stream.
      String readString()
      Reads a BSON String value from the stream.
      void skip​(int numBytes)
      Skips the specified number of bytes in the stream.
      void skipCString()
      Skips a BSON CString value from the stream.

    • Method Detail

      • getPosition

        int getPosition()
        Gets the current position in the stream
        Returns:
        the current position

      • readByte

        byte readByte()
        Reads a single byte from the stream
        Returns:
        the byte value

      • readBytes

        void readBytes​(byte[] bytes)
        Reads the specified number of bytes into the given byte array. This is equivalent to to readBytes(bytes, 0, bytes.length).
        Parameters:
        bytes - the byte array to write into

      • readBytes

        void readBytes​(byte[] bytes,
               int offset,
               int length)
        Reads the specified number of bytes into the given byte array starting at the specified offset.
        Parameters:
        bytes - the byte array to write into
        offset - the offset to start writing
        length - the number of bytes to write

      • readInt64

        long readInt64()
        Reads a BSON Int64 value from the stream.
        Returns:
        the Int64 value

      • readDouble

        double readDouble()
        Reads a BSON Double value from the stream.
        Returns:
        the double value

      • readInt32

        int readInt32()
        Reads a BSON Int32 value from the stream.
        Returns:
        the Int32 value

      • readString

        String readString()
        Reads a BSON String value from the stream.
        Returns:
        the string

      • readObjectId

        ObjectId readObjectId()
        Reads a BSON ObjectId value from the stream.
        Returns:
        the ObjectId

      • readCString

        String readCString()
        Reads a BSON CString value from the stream.
        Returns:
        the CString

      • skipCString

        void skipCString()
        Skips a BSON CString value from the stream.

      • skip

        void skip​(int numBytes)
        Skips the specified number of bytes in the stream.
        Parameters:
        numBytes - the number of bytes to skip

      • getMark

        BsonInputMark getMark​(int readLimit)
        Gets a mark for the current position in the stream.
        Parameters:
        readLimit - the maximum limit of bytes that can be read before the mark position becomes invalid
        Returns:
        the mark
        Since:
        3.7

      • hasRemaining

        boolean hasRemaining()
        Returns true if there are more bytes left in the stream.
        Returns:
        true if there are more bytes left in the stream.