question: find the _ fields constant that matches fieldid , throwing an exception if it is not found . concode_field_sep String _fieldName concode_elem_sep ByteBuffer super_column concode_elem_sep String column_family concode_elem_sep short _thriftId concode_elem_sep Map<_Fields,FieldMetaData> metaDataMap concode_elem_sep TField COLUMN_FAMILY_FIELD_DESC concode_elem_sep Map<String,_Fields> byName concode_elem_sep TStruct STRUCT_DESC concode_elem_sep TField SUPER_COLUMN_FIELD_DESC concode_field_sep ColumnParent setColumn_family concode_elem_sep byte[] getSuper_column concode_elem_sep int compareTo concode_elem_sep void setSuper_columnIsSet concode_elem_sep void unsetColumn_family concode_elem_sep _Fields fieldForId concode_elem_sep short getThriftFieldId concode_elem_sep Object getFieldValue concode_elem_sep int hashCode concode_elem_sep void unsetSuper_column concode_elem_sep ByteBuffer BufferForSuper_column concode_elem_sep void write concode_elem_sep void validate concode_elem_sep void read concode_elem_sep boolean isSet concode_elem_sep void setFieldValue concode_elem_sep void clear concode_elem_sep _Fields findByName concode_elem_sep ColumnParent deepCopy concode_elem_sep void setColumn_familyIsSet concode_elem_sep boolean equals concode_elem_sep boolean equals concode_elem_sep ColumnParent setSuper_column concode_elem_sep ColumnParent setSuper_column concode_elem_sep boolean isSetSuper_column concode_elem_sep String toString concode_elem_sep String getFieldName concode_elem_sep _Fields findByThriftId concode_elem_sep String getColumn_family concode_elem_sep boolean isSetColumn_family
target: _Fields function ( int arg0 ) { _Fields loc0 = findByThriftId ( arg0 ) ; if ( loc0 == null ) throw new IllegalArgumentException ( "srini_string" + arg0 + "srini_string" ) ; return loc0 ; }