return the mime type string , without the parameters . the returned value is basically the concatenation of the primarytype , the ' / ' character and the secondarytype . concode_field_sep String primaryType concode_elem_sep String subType concode_elem_sep ParameterList list concode_field_sep void setParameterList concode_elem_sep String getPrimaryType concode_elem_sep void setSubType concode_elem_sep void setParameter concode_elem_sep boolean match concode_elem_sep boolean match concode_elem_sep String getSubType concode_elem_sep String toString concode_elem_sep String getParameter concode_elem_sep ParameterList getParameterList concode_elem_sep void setPrimaryType
String function ( ) { return primaryType + '/' + subType ; }