question: find the _ fields constant that matches fieldid , or null if its not found . concode_field_sep String _fieldName concode_elem_sep ComponentCommon common concode_elem_sep short _thriftId concode_elem_sep Map<_Fields,org.apache.thrift.meta_data.FieldMetaData> metaDataMap concode_elem_sep Map<String,_Fields> byName concode_elem_sep org.apache.thrift.protocol.TStruct STRUCT_DESC concode_elem_sep org.apache.thrift.protocol.TField SPOUT_OBJECT_FIELD_DESC concode_elem_sep org.apache.thrift.protocol.TField COMMON_FIELD_DESC concode_elem_sep ComponentObject spout_object concode_field_sep boolean is_set_spout_object concode_elem_sep void set_spout_object concode_elem_sep boolean is_set_common concode_elem_sep _Fields findByThriftIdOrThrow concode_elem_sep int compareTo concode_elem_sep void unset_spout_object concode_elem_sep _Fields fieldForId concode_elem_sep short getThriftFieldId concode_elem_sep Object getFieldValue concode_elem_sep int hashCode concode_elem_sep void set_common concode_elem_sep void write concode_elem_sep void validate concode_elem_sep void read concode_elem_sep ComponentObject get_spout_object concode_elem_sep void set_common_isSet concode_elem_sep boolean isSet concode_elem_sep void setFieldValue concode_elem_sep void writeObject concode_elem_sep void clear concode_elem_sep _Fields findByName concode_elem_sep void unset_common concode_elem_sep SpoutSpec deepCopy concode_elem_sep void readObject concode_elem_sep void set_spout_object_isSet concode_elem_sep ComponentCommon get_common concode_elem_sep boolean equals concode_elem_sep boolean equals concode_elem_sep String toString concode_elem_sep String getFieldName
target: _Fields function ( int arg0 ) { switch ( arg0 ) { case 1 : return SPOUT_OBJECT ; case 2 : return COMMON ; default : return null ; } }