question: returns true if the buffer is currently pinned that is , if it has a nonzero pin count . concode_field_sep int modifiedBy concode_elem_sep Block blk concode_elem_sep int logSequenceNumber concode_elem_sep int pins concode_elem_sep int counter concode_elem_sep Page contents concode_field_sep void assignToBlock concode_elem_sep int getInt concode_elem_sep void setString concode_elem_sep void flush concode_elem_sep void pin concode_elem_sep void unpin concode_elem_sep Block block concode_elem_sep String getString concode_elem_sep void setInt concode_elem_sep void setCounter concode_elem_sep boolean isModifiedBy concode_elem_sep void assignToNew
target: boolean function ( ) { return pins > 0 ; }