code: public void copyFromPagesToView(
  			AbstractPagedInputView source, DataOutputView target) throws IOException {
  		checkSkipReadForFixLengthPart(source);
  		int length = source.readInt();
  		target.writeInt(length);
  		target.write(source, length);
  	}
docs: Copy a binaryRow which stored in paged input view to output view.
  
  @param source source paged input view where the binary row stored
  @param target the target output view.