question: singleton pattern for keymanager concode_field_sep String READ_OBJECT_SQL concode_elem_sep SteadyKey steadykey concode_elem_sep String WRITE_OBJECT_SQL concode_elem_sep KeyManager INSTANCE concode_elem_sep int STEADYKEY_ID concode_elem_sep Logger log concode_field_sep SecretKey getKey concode_elem_sep void readJavaObject concode_elem_sep Object clone concode_elem_sep void writeKeyToDB concode_elem_sep void writeJavaObject
target: KeyManager function ( ) { if ( INSTANCE == null ) { INSTANCE = new KeyManager ( ) ; } return INSTANCE ; }