retrieve the schema set to this metadatumdto . returns null of no schema is set concode_field_sep String schema concode_elem_sep String qualifier concode_elem_sep String value concode_elem_sep String element concode_field_sep String getValue concode_elem_sep String getElement concode_elem_sep void setQualifier concode_elem_sep void setValue concode_elem_sep void setElement concode_elem_sep void setSchema concode_elem_sep String getQualifier
String function ( ) { return schema ; }