Examples of org.apache.derby.iapi.util.ByteArray

org.apache.derby.iapi.util.ByteArray
ByteArray wraps java byte arrays (byte[]) to allow byte arrays to be used as keys in hashtables. This is required because the equals function on byte[] directly uses reference equality.
This class also allows the trio of array, offset and length to be carried around as a single object.

                // column is long.


        if (!(column instanceof InputStream)) 
                {
          // Convert already written object to an InputStream.
          ByteArray fieldData =
            new ByteArray(
                            ((DynamicByteArrayOutputStream)out).getByteArray(),
              (columnBeginPosition), fieldDataLength);


          ByteArrayInputStream columnIn =
            new ByteArrayInputStream(
                            fieldData.getArray(), columnBeginPosition, 
                            fieldDataLength);


          MemByteHolder byteHolder = 
                        new MemByteHolder(fieldDataLength + 1);

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    {
      throw StandardException.newException(
                SQLState.DATA_UNEXPECTED_EXCEPTION, ioe);
    }


    return new ByteArray(array);
  }

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                // column is long.


                if (!(column instanceof InputStream)) 
                {
                    // Convert already written object to an InputStream.
                    ByteArray fieldData =
                        new ByteArray(
                            ((DynamicByteArrayOutputStream)out).getByteArray(),
                            (columnBeginPosition), fieldDataLength);


                    ByteArrayInputStream columnIn =
                        new ByteArrayInputStream(
                            fieldData.getArray(), columnBeginPosition, 
                            fieldDataLength);


                    MemByteHolder byteHolder = 
                        new MemByteHolder(fieldDataLength + 1);

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                // column is long.


        if (!(column instanceof InputStream)) 
                {
          // Convert already written object to an InputStream.
          ByteArray fieldData =
            new ByteArray(
                            ((DynamicByteArrayOutputStream)out).getByteArray(),
              (columnBeginPosition), fieldDataLength);


          ByteArrayInputStream columnIn =
            new ByteArrayInputStream(
                            fieldData.getArray(), columnBeginPosition, 
                            fieldDataLength);


          MemByteHolder byteHolder = 
                        new MemByteHolder(fieldDataLength + 1);

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    {
      throw StandardException.newException(
                SQLState.DATA_UNEXPECTED_EXCEPTION, ioe);
    }


    return new ByteArray(array);
  }

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    {
      throw StandardException.newException(
                SQLState.DATA_UNEXPECTED_EXCEPTION, ioe);
    }


    return new ByteArray(array);
  }

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                // column is long.


        if (!(column instanceof InputStream)) 
                {
          // Convert already written object to an InputStream.
          ByteArray fieldData =
            new ByteArray(
                            ((DynamicByteArrayOutputStream)out).getByteArray(),
              (columnBeginPosition), fieldDataLength);


          ByteArrayInputStream columnIn =
            new ByteArrayInputStream(
                            fieldData.getArray(), columnBeginPosition, 
                            fieldDataLength);


          MemByteHolder byteHolder = 
                        new MemByteHolder(fieldDataLength + 1);

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                // column is long.


        if (!(column instanceof InputStream)) 
                {
          // Convert already written object to an InputStream.
          ByteArray fieldData =
            new ByteArray(
                            ((DynamicByteArrayOutputStream)out).getByteArray(),
              (columnBeginPosition), fieldDataLength);


          ByteArrayInputStream columnIn =
            new ByteArrayInputStream(
                            fieldData.getArray(), columnBeginPosition, 
                            fieldDataLength);


          MemByteHolder byteHolder = 
                        new MemByteHolder(fieldDataLength + 1);

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    {
      throw StandardException.newException(
                SQLState.DATA_UNEXPECTED_EXCEPTION, ioe);
    }


    return new ByteArray(array);
  }

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    }


    // set the position to the beginning of the buffer
    logBuffer.setPosition(optionalDataStart);


    this.preparedLog = new ByteArray(logBuffer.getByteArray(), optionalDataStart,
      optionalDataLength);
  }

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