com.fasterxml.jackson.core

Interface SerializableString

  • All Known Implementing Classes:
    SerializedString


    public interface SerializableString
    Interface that defines how Jackson package can interact with efficient pre-serialized or lazily-serialized and reused String representations. Typically implementations store possible serialized version(s) so that serialization of String can be done more efficiently, especially when used multiple times.

    Note that "quoted" in methods means quoting of 'special' characters using JSON backlash notation (and not use of actual double quotes).

    See Also:
    SerializedString
    • Method Summary

      All Methods Instance Methods Abstract Methods 
      Modifier and Type Method and Description
      int appendQuoted(char[] buffer, int offset)
      Method that will append quoted characters of this String into given buffer.
      int appendQuotedUTF8(byte[] buffer, int offset)
      Method that will append quoted UTF-8 bytes of this String into given buffer, if there is enough room; if not, returns -1.
      int appendUnquoted(char[] buffer, int offset)
      Method that will append unquoted characters of this String into given buffer.
      int appendUnquotedUTF8(byte[] buffer, int offset)
      Method that will append unquoted ('raw') UTF-8 bytes of this String into given buffer.
      char[] asQuotedChars()
      Returns JSON quoted form of the String, as character array.
      byte[] asQuotedUTF8()
      Returns UTF-8 encoded version of JSON-quoted String.
      byte[] asUnquotedUTF8()
      Returns UTF-8 encoded version of unquoted String.
      int charLength()
      Returns length of the (unquoted) String as characters.
      String getValue()
      Returns unquoted String that this object represents (and offers serialized forms for)
      int putQuotedUTF8(ByteBuffer buffer)
      Method for appending JSON-escaped UTF-8 encoded String value into given ByteBuffer, if it fits.
      int putUnquotedUTF8(ByteBuffer buffer)
      Method for appending unquoted ('raw') UTF-8 encoded String value into given ByteBuffer, if it fits.
      int writeQuotedUTF8(OutputStream out)
      Method for writing JSON-escaped UTF-8 encoded String value using given OutputStream.
      int writeUnquotedUTF8(OutputStream out)
      Method for writing unescaped UTF-8 encoded String value using given OutputStream.
    • Method Detail

      • getValue

        String getValue()
        Returns unquoted String that this object represents (and offers serialized forms for)
        Returns:
        Unquoted String
      • charLength

        int charLength()
        Returns length of the (unquoted) String as characters. Functionally equivalent to:
           getValue().length();
        
        Returns:
        Length of the String in characters
      • asQuotedChars

        char[] asQuotedChars()
        Returns JSON quoted form of the String, as character array. Result can be embedded as-is in textual JSON as property name or JSON String.
        Returns:
        JSON quoted form of the String as char[]
      • asUnquotedUTF8

        byte[] asUnquotedUTF8()
        Returns UTF-8 encoded version of unquoted String. Functionally equivalent to (but more efficient than):
         getValue().getBytes("UTF-8");
        
        Returns:
        UTF-8 encoded version of String, without any escaping
      • asQuotedUTF8

        byte[] asQuotedUTF8()
        Returns UTF-8 encoded version of JSON-quoted String. Functionally equivalent to (but more efficient than):
         new String(asQuotedChars()).getBytes("UTF-8");
        
        Returns:
        UTF-8 encoded version of JSON-escaped String
      • appendQuotedUTF8

        int appendQuotedUTF8(byte[] buffer,
                             int offset)
        Method that will append quoted UTF-8 bytes of this String into given buffer, if there is enough room; if not, returns -1. Functionally equivalent to:
          byte[] bytes = str.asQuotedUTF8();
          System.arraycopy(bytes, 0, buffer, offset, bytes.length);
          return bytes.length;
        
        Parameters:
        buffer - Buffer to append JSON-escaped String into
        offset - Offset in buffer to append String at
        Returns:
        Number of bytes appended, if successful, otherwise -1
      • appendQuoted

        int appendQuoted(char[] buffer,
                         int offset)
        Method that will append quoted characters of this String into given buffer. Functionally equivalent to:
          char[] ch = str.asQuotedChars();
          System.arraycopy(ch, 0, buffer, offset, ch.length);
          return ch.length;
        
        Parameters:
        buffer - Buffer to append JSON-escaped String into
        offset - Offset in buffer to append String at
        Returns:
        Number of characters appended, if successful, otherwise -1
      • appendUnquotedUTF8

        int appendUnquotedUTF8(byte[] buffer,
                               int offset)
        Method that will append unquoted ('raw') UTF-8 bytes of this String into given buffer. Functionally equivalent to:
          byte[] bytes = str.asUnquotedUTF8();
          System.arraycopy(bytes, 0, buffer, offset, bytes.length);
          return bytes.length;
        
        Parameters:
        buffer - Buffer to append literal (unescaped) String into
        offset - Offset in buffer to append String at
        Returns:
        Number of bytes appended, if successful, otherwise -1
      • appendUnquoted

        int appendUnquoted(char[] buffer,
                           int offset)
        Method that will append unquoted characters of this String into given buffer. Functionally equivalent to:
          char[] ch = str.getValue().toCharArray();
          System.arraycopy(bytes, 0, buffer, offset, ch.length);
          return ch.length;
        
        Parameters:
        buffer - Buffer to append literal (unescaped) String into
        offset - Offset in buffer to append String at
        Returns:
        Number of characters appended, if successful, otherwise -1
      • writeQuotedUTF8

        int writeQuotedUTF8(OutputStream out)
                     throws IOException
        Method for writing JSON-escaped UTF-8 encoded String value using given OutputStream.
        Parameters:
        out - OutputStream to write String into
        Returns:
        Number of bytes written
        Throws:
        IOException - if underlying stream write fails
      • writeUnquotedUTF8

        int writeUnquotedUTF8(OutputStream out)
                       throws IOException
        Method for writing unescaped UTF-8 encoded String value using given OutputStream.
        Parameters:
        out - OutputStream to write String into
        Returns:
        Number of bytes written
        Throws:
        IOException - if underlying stream write fails
      • putQuotedUTF8

        int putQuotedUTF8(ByteBuffer buffer)
                   throws IOException
        Method for appending JSON-escaped UTF-8 encoded String value into given ByteBuffer, if it fits.
        Parameters:
        buffer - ByteBuffer to append String into
        Returns:
        Number of bytes put, if contents fit, otherwise -1
        Throws:
        IOException - if underlying buffer append operation fails
      • putUnquotedUTF8

        int putUnquotedUTF8(ByteBuffer buffer)
                     throws IOException
        Method for appending unquoted ('raw') UTF-8 encoded String value into given ByteBuffer, if it fits.
        Parameters:
        buffer - ByteBuffer to append String into
        Returns:
        Number of bytes put, if contents fit, otherwise -1
        Throws:
        IOException - if underlying buffer append operation fails

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