而类C的内存布局如下: 可见,派生类C中依其继承的基类的顺序,存放了各个基类subobject及各自的vptr,然后才是Class C自己的数据成员。...同时也可以想到,随着base class的数量增多,派生类里也会首先顺序存放各个基类subobject。而派生类中也会记录其到各个base subobject的offset。...接下来看类D的内存布局: 如上图,D中依次存放基类B subobject和基类C subobject。其中B和C中均存放一份class A subobject。 3.3....只需要有一份subobject A即够了。...而共享区域所表现的就是virtual base class subobject。这部分数据的位置会因为每次的派生操作而发生变化,所以它们只可以被间接存取。
成功获取到天气数据 json解析 static int cJSON_NowWeatherParse(char *JSON) { cJSON *json,*arrayItem,*object,*subobject...Begin------------------------------\r\n"); /* 匹配子对象1 */ if((subobject...-------------------------------\r\n"); if((item = cJSON_GetObjectItem(subobject...-------------------------------\r\n"); if((item = cJSON_GetObjectItem(subobject...->string,subobject->valuestring); } rt_kprintf("-------------
dutyPerson = subObject.get("dPerson").getAsString(); dutyPhone = subObject.get("dPhone...").getAsString(); dutyEmail = subObject.get("dEmail").getAsString(); ...dutyDate = subObject.get("startDate").getAsString() .substring(0, 10); ...dPerson = subObject.get("dPerson").getAsString(); dPhone = subObject.get("dPhone").getAsString...(); dEmail = subObject.get("dEmail").getAsString(); dDate = subObject.get
谓词评估 在上面表中,字段SUBOBJECT_NAME中不存在空值,但也没有非空约束,再看以下查询,查找该字段的空值记录: 统计信息如下: 我们看到,需要对表进行全表扫描(关于索引,随后再讨论)。...我们先去掉subobject_name上的非空约束,并在上面建立索引: HELLODBA.COM>alter table t_test1 modify subobject_name null;...执行以下语句,以获取subobject_name最小的10条记录。...再将subobject_name的非空约束去掉。...HELLODBA.COM>alter table t_test1 modify subobject_name null; Table altered.
php class SubObject { static $instances = 0; public $instance; public function __construct...(); $obj->object2 = new SubObject(); $obj2 = clone $obj; print("Original Object:\n"); print_r($obj...> 以上例程会输出: Original Object: MyCloneable Object ( [object1] => SubObject Object (...) ) Cloned Object: MyCloneable Object ( [object1] => SubObject Object ( [instance...] => 3 ) [object2] => SubObject Object ( [instance] => 2 )
ExampleObject> SERIALIZER = new ExampleObjectSerializer(); public final int num; public final SubObject...obj; public ExampleObject(int num, @NotNull SubObject obj) { this.num = num; this.obj...IOException, ClassNotFoundException { final int num = input.readInt(); final SubObject...obj = input.readObject(SubObject.SERIALIZER); return new ExampleObject(num, obj);...如果在上面的例子中你也想删除obj字段并删除SubObject: @Override @NotNull protected ExampleObject deserializeObject(@NotNull
*************************/ int cJSON_WeatherParse(char *JSON) { cJSON *json,*arrayItem,*object,*subobject...--------\n"); //匹配子对象1成员"id" if((item = cJSON_GetObjectItem(subobject...//匹配子对象1成员"timezone_offset" if((item = cJSON_GetObjectItem(subobject...------\n"); //匹配子对象2成员"text" if((item = cJSON_GetObjectItem(subobject...->string,subobject->valuestring); } } } } cJSON_Delete(
$this->object1 = clone $this->object1; } } $obj = new MyCloneable(); $obj->object1 = new SubObject...(); $obj->object2 = new SubObject(); $obj2 = clone $obj; print("__clone, Original Object:\n"); print_r...Object ( [instance] => 1 ) [object2] => SubObject Object ( [instance] => 2 )) __clone,...Cloned Object: MyCloneable Object ( [object1] => SubObject Object ( [instance] => 3 ) [object2...] => SubObject Object ( [instance] => 2 )) */ 本文由来源 21aspnet,由 javajgs_com 整理编辑,其版权均为 21aspnet
50 feedback off verify off heading on echo off col owner format a20 col object_name format a30 col subobject_name...format a10 set linesize 150 break on object_name select object_name,owner,subobject_name,object_type...******************************************* OBJECT_NAME OWNER SUBOBJECT...format a10 set linesize 150 break on object_name select object_name,owner,subobject_name,object_type...******************************************* OBJECT_NAME OWNER SUBOBJECT
: SubObject @Inject lateinit var subObject2: SubObject override fun onCreate(savedInstanceState..."SubActivity singleton hashcode: ${singleton.hashCode()}") Log.i("aruba_log", "SubActivity subObject1...hashcode: ${subObject1.hashCode()}") Log.i("aruba_log", "SubActivity subObject2 hashcode: ${...subObject2.hashCode()}") } } 日志结果: 2021-12-04/com.aruba.daggerapplication I/aruba_log: MainActivity...hashcode: 44284508 2021-12-04/com.aruba.daggerapplication I/aruba_log: SubActivity subObject2 hashcode
vptr.Base = 0x400a90 , a = 0, b = 0} (gdb) info vtbl b vtable for 'Base' @ 0x400a90 (subobject...0x400a50 , a = 0, b = 0}, c = 1} (gdb) info vtbl d vtable for 'Derive' @ 0x400a50 (subobject...0x400a00 , vv = 0}, d2 = 0} (gdb) info vtbl d2 vtable for 'Derive2' @ 0x4009d0 (subobject...2]: 0x4008f8 [3]: 0x400902 vtable for 'Test' @ 0x400a00 (subobject
#### $1 dba conn details #### $2 table owner #### $3 table_name #### $4 subobject_name #### $5 parallel_no...unbounded preceding AND unbounded following) hi_block, SUM(blocks) over (partition BY DOI,grp) sum_blocks,SUBOBJECT_NAME...FROM( SELECT obj.OBJECT_ID, obj.SUBOBJECT_NAME, obj.DATA_OBJECT_ID...FROM( SELECT obj.OBJECT_ID, obj.SUBOBJECT_NAME, obj.DATA_OBJECT_ID...AND obj.object_name = ext.segment_name AND obj.DATA_OBJECT_ID IS NOT NULL AND obj.subobject_name
for (int i =0;i < array.size();i++){ System.out.println("-----------"); JsonObject subObject...= array.get(i).getAsJsonObject(); System.out.println("id=" + subobject.get("id").getAsInt()...); System.out.println("name=" + subobject.get("name").getAsString()); System.out.println...("ide=" + subobject.get("ide").getAsString()); } }catch (JsonIOException e){ e.printStackTrace
例如在Oracle中,类型转换如下, 字符串类型转换关系, 测试表test的object_name是varchar2类型,subobject_name是nvarchar2类型,都创建了索引, SQL...SQL> alter table test modify subobject_name nvarchar2(30); Table altered....SQL> create index idx_test_02 on test(subobject_name); Index created....----------------- OWNER VARCHAR2(30) OBJECT_NAME VARCHAR2(128) SUBOBJECT_NAME...SQL> select * from test where subobject_name = :q; no rows selected ---------------------------------
SYS_TEMP_0FD9D6609_2B3F4ED" ("OWNER" VARCHAR2(30), "OBJECT_NAME" VARCHAR2(128),"SUBOBJECT_NAME" VARCHAR2...SYS_TEMP_0FD9D6609_2B3F4ED" ("OWNER" VARCHAR2(30),"OBJECT_NAME" VARCHAR2(128),"SUBOBJECT_NAME" VARCHAR2...SYS_TEMP_0FD9D6609_2B3F4ED" ("OWNER" VARCHAR2(30),"OBJECT_NAME" VARCHAR2(128),"SUBOBJECT_NAME" V ARCHAR2...SYS_TEMP_0FD9D6609_2B3F4ED" ("OWNER" VARCHAR2(30),"OBJECT_NAME" VARCHAR2(128),"SUBOBJECT_NAME" V ARCHAR2...VARCHAR2(30) OBJECT_NAME VARCHAR2(128) SUBOBJECT_NAME
VARCHAR2(30) Y OBJECT_NAME VARCHAR2(128) Y SUBOBJECT_NAME...VARCHAR2(30) Y OBJECT_NAME VARCHAR2(128) Y SUBOBJECT_NAME
nb.CREATED FROM dba_objects nb WHERE nb.OWNER = d.table_owner AND nb.SUBOBJECT_NAME...nb.LAST_DDL_TIME FROM dba_objects nb WHERE nb.OWNER = d.table_owner AND nb.SUBOBJECT_NAME...OUTER JOIN (SELECT DO.OWNER, DO.OBJECT_NAME, DO.SUBOBJECT_NAME...WHERE t.obj# = do.OBJECT_ID) TT ON (D.TABLE_NAME = TT.OBJECT_NAME AND D.PARTITION_NAME = TT.SUBOBJECT_NAME...OUTER JOIN (SELECT DO.OWNER, DO.OBJECT_NAME, DO.SUBOBJECT_NAME
test_objects as select * from all_objects; create index idx_test_objects_1 on test_objects(owner, object_name, subobject_name...VARCHAR2(30) OBJECT_NAME NOT NULL VARCHAR2(30) SUBOBJECT_NAME...OBJECT_NAME 2 IDX_TEST_OBJECTS_1 SUBOBJECT_NAME
------ OBJECT_NAME -------------------------------------------------------------------------------- SUBOBJECT_NAME...------ OBJECT_NAME -------------------------------------------------------------------------------- SUBOBJECT_NAME...------ OBJECT_NAME -------------------------------------------------------------------------------- SUBOBJECT_NAME...------ OBJECT_NAME -------------------------------------------------------------------------------- SUBOBJECT_NAME...------ OBJECT_NAME -------------------------------------------------------------------------------- SUBOBJECT_NAME
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