update docs

Signed-off-by: NAnnie_wang <annie.wangli@huawei.com>

en/application-dev/reference/apis/js-apis-data-distributedobject.md

@@ -2,7 +2,7 @@
 
 The **distributedDataObject** module provides basic data object management, including creating, querying, deleting, modifying, and subscribing to data objects, and distributed data object collaboration for the same application among multiple devices.
 
-> **NOTE**<br/>
+> **NOTE**
 >
 > The initial APIs of this module are supported since API version 8. Newly added APIs will be marked with a superscript to indicate their earliest API version.
 
@@ -13,32 +13,58 @@ The **distributedDataObject** module provides basic data object management, incl
 import distributedObject from '@ohos.data.distributedDataObject';
 ```
 
-## distributedDataObject.createDistributedObject
-
-createDistributedObject(source: object): DistributedObject
+## distributedObject.create<sup>9+</sup>
 
+create(context: Context, source: object): DistributedObjectV9
 
 Creates a distributed data object.
 
 **System capability**: SystemCapability.DistributedDataManager.DataObject.DistributedObject
 
 **Parameters**
+
 | Name| Type| Mandatory| Description|
 | -------- | -------- | -------- | -------- |
-| source | object | Yes| Attribute of the distributed data object to create.|
+| context | Context | Yes| Application context.<br>For details about the application context of the FA model, see [Context](js-apis-inner-app-context.md).<br>For details about the application context of the stage model, see [Context](js-apis-ability-context.md).|
+| source | object | Yes| Attributes of the distributed data object.|
 
 **Return value**
+
 | Type| Description|
 | -------- | -------- |
-| [DistributedObject](#distributedobject) | Distributed data object created.|
+| [DistributedObjectV9](#distributedobjectv9) | Distributed data object created.|
 
 **Example**
+
+FA model:
+
 ```js
+// Import the module.
 import distributedObject from '@ohos.data.distributedDataObject';
-// Create a distributed data object, which contains attributes of four types, namely, string, number, boolean, and object.
-var g_object = distributedObject.createDistributedObject({name:"Amy", age:18, isVis:false, parent:{mother:"jack mom",father:"jack Dad"}});
+import featureAbility from '@ohos.ability.featureAbility';
+// Obtain the context.
+let context = featureAbility.getContext();
+// Create a distributed data object, which contains attributes of the string, number, boolean, and object types.
+let g_object = distributedObject.create(context, {name:"Amy", age:18, isVis:false, parent:{mother:"jack mom",father:"jack Dad"}});
 ```
 
+Stage model:
+
+```ts
+// Import the module.
+import distributedObject from '@ohos.data.distributedDataObject';
+import UIAbility from '@ohos.app.ability.UIAbility';
+
+// Obtain the context.
+let context;
+class EntryAbility extends UIAbility {
+    onWindowStageCreate(windowStage){
+        context = this.context
+    }
+}
+// Create a distributed data object, which contains attributes of the string, number, boolean, and object types.
+let g_object = distributedObject.create(context, {name:"Amy", age:18, isVis:false, parent:{mother:"jack mom",father:"jack Dad"}});
+```
 
 ## distributedObject.genSessionId
 
@@ -49,14 +75,16 @@ Creates a random session ID.
 **System capability**: SystemCapability.DistributedDataManager.DataObject.DistributedObject
 
 **Return value**
+
 | Type| Description|
 | -------- | -------- |
 | string | Session ID created.|
 
 **Example**
+
 ```js
 import distributedObject from '@ohos.data.distributedDataObject';
-var sessionId = distributedObject.genSessionId();
+let sessionId = distributedObject.genSessionId();
 ```
 
 ## SaveSuccessResponse<sup>9+</sup>
@@ -65,11 +93,11 @@ Called when the **Save()** API is successfully called.
 
 **System capability**: SystemCapability.DistributedDataManager.DataObject.DistributedObject
 
-| Name| Type| Description|
-| -------- | -------- | -------- |
-| sessionId | string | Unique ID for multi-device collaboration.|
-| version | number |Version of the distributed data object saved.|
-| deviceId | string | ID of the device where the distributed data object is stored. The default value is **local**, which identifies a local device. You can set it as required.|
+| Name| Type| Mandatory| Description|
+| -------- | -------- | -------- | -------- |
+| sessionId | string | Yes| Unique ID for multi-device collaboration.|
+| version | number | Yes| Version of the distributed data object saved.|
+| deviceId | string | Yes| ID of the device where the distributed data object is stored. The default value is **local**, which identifies a local device. You can set it as required.|
 
 ## RevokeSaveSuccessResponse<sup>9+</sup>
 
@@ -77,17 +105,144 @@ Called when the **revokeSave()** API is successfully called.
 
 **System capability**: SystemCapability.DistributedDataManager.DataObject.DistributedObject
 
-| Name| Type| Description|
-| -------- | -------- | -------- |
-| sessionId | string | Unique ID for multi-device collaboration.|
+| Name| Type| Mandatory| Description|
+| -------- | -------- | -------- | -------- |
+| sessionId | string | Yes| Unique ID for multi-device collaboration.|
 
-## DistributedObject
+## DistributedObjectV9
 
-Represents a distributed data object.
+Provides APIs for managing a distributed data object.
 
-### setSessionId
+### setSessionId<sup>9+</sup>
 
-setSessionId(sessionId?: string): boolean
+setSessionId(sessionId: string, callback: AsyncCallback&lt;void&gt;): void
+
+Sets a session ID for synchronization. Automatic synchronization is performed for multiple devices with the same session ID on a trusted network.
+
+**Required permissions**: ohos.permission.DISTRIBUTED_DATASYNC
+
+**System capability**: SystemCapability.DistributedDataManager.DataObject.DistributedObject
+
+**Parameters**
+
+| Name| Type| Mandatory| Description|
+| -------- | -------- | -------- | -------- |
+| sessionId | string | Yes| ID of a distributed data object on a trusted network.|
+| callback | AsyncCallback&lt;void&gt; | Yes| Asynchronous callback invoked when the session ID is successfully set.|
+
+**Error codes**
+
+  For details about the error codes, see [Distributed Data Object Error Codes] (../errorcodes/errorcode-distributed-dataObject.md).
+
+| ID| Error Message|
+| -------- | -------- |
+| 15400001 | Failed to create the in-memory database.|
+
+**Example**
+
+FA model:
+
+```js
+import distributedObject from '@ohos.data.distributedDataObject';
+import featureAbility from '@ohos.ability.featureAbility';
+// Obtain the context.
+let context = featureAbility.getContext();
+let g_object = distributedObject.create(context, {name:"Amy", age:18, isVis:false, parent:{mother:"jack mom",father:"jack Dad"}});
+// Add g_object to the distributed network.
+g_object.setSessionId(distributedObject.genSessionId(), ()=>{
+    console.log("join session");
+});
+```
+Stage model:
+
+```ts
+import distributedObject from '@ohos.data.distributedDataObject';
+import UIAbility from '@ohos.app.ability.UIAbility';
+
+// Obtain the context.
+let context;
+class EntryAbility extends UIAbility {
+    onWindowStageCreate(windowStage){
+        context = this.context
+    }
+}
+let g_object = distributedObject.create(context, {name:"Amy", age:18, isVis:false, parent:{mother:"jack mom",father:"jack Dad"}});
+// Add g_object to the distributed network.
+g_object.setSessionId(distributedObject.genSessionId(), ()=>{
+    console.log("join session");
+});
+```
+
+### setSessionId<sup>9+</sup>
+
+setSessionId(callback: AsyncCallback&lt;void&gt;): void
+
+Exits all joined sessions.
+
+**Required permissions**: ohos.permission.DISTRIBUTED_DATASYNC
+
+**System capability**: SystemCapability.DistributedDataManager.DataObject.DistributedObject
+
+**Parameters**
+
+| Name| Type| Mandatory| Description|
+| -------- | -------- | -------- | -------- |
+| callback | AsyncCallback&lt;void&gt; | Yes| Asynchronous callback invoked when the distributed data object exits all joined sessions.|
+
+**Error codes**
+
+  For details about the error codes, see [Distributed Data Object Error Codes] (../errorcodes/errorcode-distributed-dataObject.md).
+
+| ID| Error Message|
+| -------- | -------- |
+| 15400001 | Failed to create the in-memory database.|
+
+**Example**
+
+FA model:
+
+```js
+import distributedObject from '@ohos.data.distributedDataObject';
+import featureAbility from '@ohos.ability.featureAbility';
+// Obtain the context.
+let context = featureAbility.getContext();
+let g_object = distributedObject.create(context, {name:"Amy", age:18, isVis:false, parent:{mother:"jack mom",father:"jack Dad"}});
+// Add g_object to the distributed network.
+g_object.setSessionId(distributedObject.genSessionId(), ()=>{
+    console.log("join session");
+});
+// Exit the distributed network.
+g_object.setSessionId(() => {
+    console.log("leave all lession.");
+});
+```
+Stage model:
+
+```ts
+import distributedObject from '@ohos.data.distributedDataObject';
+import UIAbility from '@ohos.app.ability.UIAbility';
+
+// Obtain the context.
+let context;
+class EntryAbility extends UIAbility {
+    onWindowStageCreate(windowStage){
+        context = this.context
+    }
+}
+let g_object = distributedObject.create(context, {name:"Amy", age:18, isVis:false, parent:{mother:"jack mom",father:"jack Dad"}});
+// Add g_object to the distributed network.
+g_object.setSessionId(distributedObject.genSessionId(), ()=>{
+    console.log("join session");
+});
+// Exit the distributed network.
+g_object.setSessionId(() => {
+    console.log("leave all lession.");
+});
+```
+
+### setSessionId<sup>9+</sup>
+
+setSessionId(sessionId?: string): Promise&lt;void&gt;
 
 Sets a session ID for synchronization. Automatic synchronization is performed for multiple devices with the same session ID on a trusted network.
 
@@ -105,38 +260,117 @@ Sets a session ID for synchronization. Automatic synchronization is performed fo
 
 | Type| Description|
 | -------- | -------- |
-| boolean | Returns **true** if the session ID is set successfully;<br>returns **false** otherwise. |
+| Promise&lt;void&gt; | Promise that returns no value.|
+
+**Error codes**
+
+  For details about the error codes, see [Distributed Data Object Error Codes] (../errorcodes/errorcode-distributed-dataObject.md).
+
+| ID| Error Message|
+| -------- | -------- |
+| 15400001 | Failed to create the in-memory database.|
 
 **Example**
 
+FA model:
+
 ```js
 import distributedObject from '@ohos.data.distributedDataObject';
-var g_object = distributedObject.createDistributedObject({name:"Amy", age:18, isVis:false, parent:{mother:"jack mom",father:"jack Dad"}});;
+import featureAbility from '@ohos.ability.featureAbility';
+// Obtain the context.
+let context = featureAbility.getContext();
+let g_object = distributedObject.create(context, {name:"Amy", age:18, isVis:false, parent:{mother:"jack mom",father:"jack Dad"}});
 // Add g_object to the distributed network.
-g_object.setSessionId(distributedObject.genSessionId());
-// Remove g_object from the distributed network.
-g_object.setSessionId("");
+g_object.setSessionId(distributedObject.genSessionId()).then (()=>{
+    console.log("join session.");
+    }).catch((error)=>{
+        console.info("error:" + error.code + error.message);
+});
+// Exit the distributed network.
+g_object.setSessionId().then (()=>{
+    console.log("leave all lession.");
+    }).catch((error)=>{
+        console.info("error:" + error.code + error.message);
+});
 ```
+Stage model:
+
+```ts
+import distributedObject from '@ohos.data.distributedDataObject';
+import UIAbility from '@ohos.app.ability.UIAbility';
 
+// Obtain the context.
+let context;
+class EntryAbility extends UIAbility {
+    onWindowStageCreate(windowStage){
+        context = this.context
+    }
+}
+let g_object = distributedObject.create(context, {name:"Amy", age:18, isVis:false, parent:{mother:"jack mom",father:"jack Dad"}});
+// Add g_object to the distributed network.
+g_object.setSessionId(distributedObject.genSessionId()).then (()=>{
+    console.info("join session.");
+    }).catch((error)=>{
+        console.info("error:" + error.code + error.message);
+});
+// Exit the distributed network.
+g_object.setSessionId().then (()=>{
+    console.log("leave all lession.");
+    }).catch((error)=>{
+        console.info("error:" + error.code + error.message);
+});
+```
 
-### on('change')
+### on('change')<sup>9+</sup>
 
 on(type: 'change', callback: Callback<{ sessionId: string, fields: Array&lt;string&gt; }>): void
 
-Subscribes to the changes of this distributed data object.
+Subscribes to data changes of this distributed data object.
 
 **System capability**: SystemCapability.DistributedDataManager.DataObject.DistributedObject
 
 **Parameters**
+
 | Name| Type| Mandatory| Description|
 | -------- | -------- | -------- | -------- |
 | type | string | Yes| Event type to subscribe to. The value is **change**, which indicates data changes.|
-| callback | Callback<{ sessionId: string, fields: Array&lt;string&gt; }> | Yes| Callback used to return the changes of the distributed data object.<br>**sessionId** indicates the session ID of the distributed data object.<br>**fields** indicates the changed attributes of the distributed data object.|
+| callback | Callback<{ sessionId: string, fields: Array&lt;string&gt; }> | Yes| Callback invoked to return the changes of the distributed data object.<br>**sessionId** indicates the session ID of the distributed data object.<br>**fields** indicates the changed attributes of the distributed data object.|
 
 **Example**
+
+FA model:
+
 ```js
 import distributedObject from '@ohos.data.distributedDataObject';
-var g_object = distributedObject.createDistributedObject({name:"Amy", age:18, isVis:false, parent:{mother:"jack mom",father:"jack Dad"}});
+import featureAbility from '@ohos.ability.featureAbility';
+// Obtain the context.
+let context = featureAbility.getContext();
+let g_object = distributedObject.create(context, {name:"Amy", age:18, isVis:false, parent:{mother:"jack mom",father:"jack Dad"}});
+globalThis.changeCallback = (sessionId, changeData) => {
+    console.info("change" + sessionId);
+    if (changeData != null && changeData != undefined) {
+        changeData.forEach(element => {
+        console.info("changed !" + element + " " + g_object[element]);
+        });
+    }
+}
+g_object.on("change", globalThis.changeCallback);
+```
+
+Stage model:
+
+```ts
+import distributedObject from '@ohos.data.distributedDataObject';
+import UIAbility from '@ohos.app.ability.UIAbility';
+
+// Obtain the context.
+let context;
+class EntryAbility extends UIAbility {
+    onWindowStageCreate(windowStage){
+        context = this.context
+    }
+}
+let g_object = distributedObject.create(context, {name:"Amy", age:18, isVis:false, parent:{mother:"jack mom",father:"jack Dad"}});
 globalThis.changeCallback = (sessionId, changeData) => {
     console.info("change" + sessionId);
     if (changeData != null && changeData != undefined) {
@@ -148,81 +382,164 @@ globalThis.changeCallback = (sessionId, changeData) => {
 g_object.on("change", globalThis.changeCallback);
 ```
 
-### off('change')
+### off('change')<sup>9+</sup>
 
 off(type: 'change', callback?: Callback<{ sessionId: string, fields: Array&lt;string&gt; }>): void
 
-Unsubscribes from the changes of this distributed data object.
+Unsubscribes from the data changes of this distributed data object.
 
 **System capability**: SystemCapability.DistributedDataManager.DataObject.DistributedObject
 
 **Parameters**
+
 | Name| Type| Mandatory| Description|
 | -------- | -------- | -------- | -------- |
-| type | string | Yes| Event type to unsubscribe from. The value is **change**, which indicates data changes.|
-| callback | Callback<{ sessionId: string, fields: Array&lt;string&gt; }> | No| Callback to be unregistered. If this parameter is not set, all data change callbacks of the object will be unregistered.<br>**sessionId** indicates the session ID of the distributed data object.<br>**fields** indicates the changed attributes of the distributed data object.|
+| type | string | Yes| Event type to unsubscribe from. The value is **change**, which indicates data changes. |
+| callback | Callback<{ sessionId: string, fields: Array&lt;string&gt; }> | No| Callback for data changes. If this parameter is not specified, all data change callbacks of this distributed data object will be unregistered.<br>**sessionId** indicates the session ID of the distributed data object.<br>**fields** indicates the changed attributes of the distributed data object.|
 
 
 **Example**
+
+FA model:
+
 ```js
 import distributedObject from '@ohos.data.distributedDataObject';
-var g_object = distributedObject.createDistributedObject({name:"Amy", age:18, isVis:false, parent:{mother:"jack mom",father:"jack Dad"}});
+import featureAbility from '@ohos.ability.featureAbility';
+// Obtain the context.
+let context = featureAbility.getContext();
+let g_object = distributedObject.create(context, {name:"Amy", age:18, isVis:false, parent:{mother:"jack mom",father:"jack Dad"}});
 // Unregister the specified data change callback.
 g_object.off("change", globalThis.changeCallback);
 // Unregister all data change callbacks.
 g_object.off("change");
 ```
 
-### on('status')
+Stage model:
+
+```ts
+import distributedObject from '@ohos.data.distributedDataObject';
+import UIAbility from '@ohos.app.ability.UIAbility';
+
+// Obtain the context.
+let context;
+class EntryAbility extends UIAbility {
+    onWindowStageCreate(windowStage){
+        context = this.context
+    }
+}
+let g_object = distributedObject.create(context, {name:"Amy", age:18, isVis:false, parent:{mother:"jack mom",father:"jack Dad"}});
+// Unregister the specified data change callback.
+g_object.off("change", globalThis.changeCallback);
+// Unregister all data change callbacks.
+g_object.off("change");
+```
+
+### on('status')<sup>9+</sup>
 
 on(type: 'status', callback: Callback<{ sessionId: string, networkId: string, status: 'online' | 'offline' }>): void
 
-Subscribes to the status change (online or offline) of this distributed data object.
+Subscribes to statue changes of this distributed data object.
 
 **System capability**: SystemCapability.DistributedDataManager.DataObject.DistributedObject
 
 **Parameters**
+
 | Name| Type| Mandatory| Description|
 | -------- | -------- | -------- | -------- |
 | type | string | Yes| Event type to subscribe to. The value is **status**, which indicates the status change (online or offline) of the distributed data object.|
-| callback | Callback<{ sessionId: string, networkId: string, status: 'online' \| 'offline' }> | Yes| Callback used to return the status change.<br>**sessionId**: session ID of the distributed data object.<br>**networkId**: object device ID, that is, **deviceId**.<br>**status** indicates the object status, which can be online or offline.|
+| callback | Callback<{ sessionId: string, networkId: string, status: 'online' \| 'offline' }> | Yes| Callback invoked to return the status change.<br>**sessionId** indicates the session ID of the distributed data object.<br>**networkId** indicates the object device ID, that is, **deviceId**.<br>**status** indicates the object status, which can be online or offline.|
 
 **Example**
+
+FA model:
+
 ```js
 import distributedObject from '@ohos.data.distributedDataObject';
+import featureAbility from '@ohos.ability.featureAbility';
+// Obtain the context.
+let context = featureAbility.getContext();
 globalThis.statusCallback = (sessionId, networkId, status) => {
     globalThis.response += "status changed " + sessionId + " " + status + " " + networkId;
 }
-var g_object = distributedObject.createDistributedObject({name:"Amy", age:18, isVis:false, parent:{mother:"jack mom",father:"jack Dad"}});
+let g_object = distributedObject.create(context, {name:"Amy", age:18, isVis:false, parent:{mother:"jack mom",father:"jack Dad"}});
 g_object.on("status", globalThis.statusCallback);
 ```
 
-### off('status')
+Stage model:
 
-off(type: 'status', callback?: Callback<{ sessionId: string, deviceId: string, status: 'online' | 'offline' }>): void
+```ts
+import distributedObject from '@ohos.data.distributedDataObject';
+import UIAbility from '@ohos.app.ability.UIAbility';
 
+// Obtain the context.
+let context;
+class EntryAbility extends UIAbility {
+    onWindowStageCreate(windowStage){
+        context = this.context
+    }
+}
+globalThis.statusCallback = (sessionId, networkId, status) => {
+    globalThis.response += "status changed " + sessionId + " " + status + " " + networkId;
+}
+let g_object = distributedObject.create(context, {name:"Amy", age:18, isVis:false, parent:{mother:"jack mom",father:"jack Dad"}});
+g_object.on("status", globalThis.statusCallback);
+```
+
+### off('status')<sup>9+</sup>
+
+off(type: 'status', callback?: Callback<{ sessionId: string, deviceId: string, status: 'online' | 'offline' }>): void
 
-Unsubscribes from the status change (online or offline) of this distributed data object.
+Unsubscribes from the status change of this distributed data object.
 
 **System capability**: SystemCapability.DistributedDataManager.DataObject.DistributedObject
 
 **Parameters**
+
 | Name| Type| Mandatory| Description|
 | -------- | -------- | -------- | -------- |
 | type | string | Yes| Event type to unsubscribe from. The value is **status**, which indicates the status change (online or offline) of the distributed data object.|
-| callback | Callback<{ sessionId: string, deviceId: string, status: 'online' \| 'offline' }> | No| Callback used to return the status change. If this parameter is not specified, this API unsubscribes from all callbacks of this distributed data object.<br>**sessionId**: session ID of the distributed data object.<br>**deviceId** indicates the device ID of the distributed data object.<br>**status** indicates the status, which can be online or offline.|
+| callback | Callback<{ sessionId: string, deviceId: string, status: 'online' \| 'offline' }> | No| Callback for status changes. If this parameter is not specified, all status change callbacks of this distributed data object will be unsubscribed from.<br>**sessionId** indicates the session ID of the distributed data object.<br>**deviceId** indicates the device ID of the distributed data object.<br>**status** indicates the object status, which can be online or offline.|
 
 
 **Example**
+
+FA model:
+
 ```js
 import distributedObject from '@ohos.data.distributedDataObject'; 
-var g_object = distributedObject.createDistributedObject({name:"Amy", age:18, isVis:false, parent:{mother:"jack mom",father:"jack Dad"}});
+import featureAbility from '@ohos.ability.featureAbility';
+// Obtain the context.
+let context = featureAbility.getContext();
+let g_object = distributedObject.create(context, {name:"Amy", age:18, isVis:false, parent:{mother:"jack mom",father:"jack Dad"}});
+globalThis.statusCallback = (sessionId, networkId, status) => {
+    globalThis.response += "status changed " + sessionId + " " + status + " " + networkId;
+}
+// Unregister the specified status change callback.
+g_object.off("status",globalThis.statusCallback);
+// Unregister all status change callbacks.
+g_object.off("status");
+```
+
+Stage model:
+
+```ts
+import distributedObject from '@ohos.data.distributedDataObject'; 
+import UIAbility from '@ohos.app.ability.UIAbility';
+
+// Obtain the context.
+let context;
+class EntryAbility extends UIAbility {
+    onWindowStageCreate(windowStage){
+        context = this.context
+    }
+}
+let g_object = distributedObject.create(context, {name:"Amy", age:18, isVis:false, parent:{mother:"jack mom",father:"jack Dad"}});
 globalThis.statusCallback = (sessionId, networkId, status) => {
     globalThis.response += "status changed " + sessionId + " " + status + " " + networkId;
 }
-// Unsubscribe from the specified status change callback for the distributed data object.
+// Unregister the specified status change callback.
 g_object.off("status",globalThis.statusCallback);
-// Unsubscribe from all status change callbacks for the distributed data object.
+// Unregister all status change callbacks.
 g_object.off("status");
 ```
 
@@ -243,18 +560,45 @@ The saved data will be released in the following cases:
 **System capability**: SystemCapability.DistributedDataManager.DataObject.DistributedObject
 
 **Parameters**
+
 | Name| Type| Mandatory| Description|
 | -------- | -------- | -------- | -------- |
 | deviceId | string | Yes| ID of the device where data is stored. The value **local** indicates the local device.|
-| callback | AsyncCallback&lt;[SaveSuccessResponse](#savesuccessresponse9)&gt; | Yes| Callback used to return **SaveSuccessResponse**, which contains information such as session ID, version, and device ID.|
+| callback | AsyncCallback&lt;[SaveSuccessResponse](#savesuccessresponse9)&gt; | Yes| Callback invoked to return **SaveSuccessResponse**, which contains information such as session ID, version, and device ID.|
 
 **Example**
-```js
+
+FA model:
+```ts
 import distributedObject from '@ohos.data.distributedDataObject';
-var g_object = distributedObject.createDistributedObject({name:"Amy", age:18, isVis:false});
+import featureAbility from '@ohos.ability.featureAbility';
+// Obtain the context.
+let context = featureAbility.getContext();
+let g_object = distributedObject.create(context, {name:"Amy", age:18, isVis:false});
 g_object.setSessionId("123456");
-g_object.save("local", (status, result)=>{
-    console.log("save status = " + status);
+g_object.save("local", (result) => {
+    console.log("save callback");
+    console.info("save sessionId: " + result.sessionId);
+    console.info("save version: " + result.version);
+    console.info("save deviceId:  " + result.deviceId);
+});
+```
+
+Stage model:
+```ts
+import distributedObject from '@ohos.data.distributedDataObject';
+import UIAbility from '@ohos.app.ability.UIAbility';
+
+// Obtain the context.
+let context;
+class EntryAbility extends UIAbility {
+    onWindowStageCreate(windowStage){
+        context = this.context
+    }
+}
+let g_object = distributedObject.create(context, {name:"Amy", age:18, isVis:false});
+g_object.setSessionId("123456");
+g_object.save("local", (result) => {
     console.log("save callback");
     console.info("save sessionId: " + result.sessionId);
     console.info("save version: " + result.version);
@@ -279,6 +623,7 @@ The saved data will be released in the following cases:
 **System capability**: SystemCapability.DistributedDataManager.DataObject.DistributedObject
 
 **Parameters**
+
 | Name| Type| Mandatory| Description|
 | -------- | -------- | -------- | -------- |
 | deviceId | string | Yes| ID of the device where the data is saved. The default value is **local**, which indicates the local device. |
@@ -293,14 +638,40 @@ The saved data will be released in the following cases:
 
 ```js
 import distributedObject from '@ohos.data.distributedDataObject';
-var g_object = distributedObject.createDistributedObject({name:"Amy", age:18, isVis:false});
+import featureAbility from '@ohos.ability.featureAbility';
+// Obtain the context.
+let context = featureAbility.getContext();
+let g_object = distributedObject.create(context,{name:"Amy", age:18, isVis:false});
 g_object.setSessionId("123456");
-g_object.save("local").then((result)=>{
+g_object.save("local").then((result) => {
     console.log("save callback");
     console.info("save sessionId " + result.sessionId);
     console.info("save version " + result.version);
     console.info("save deviceId " + result.deviceId);
-}, ()=>{
+}, () => {
+    console.error("save failed");
+});
+```
+
+```js
+import distributedObject from '@ohos.data.distributedDataObject';
+import UIAbility from '@ohos.app.ability.UIAbility';
+
+// Obtain the context.
+let context;
+class EntryAbility extends UIAbility {
+    onWindowStageCreate(windowStage){
+        context = this.context
+    }
+}
+let g_object = distributedObject.create(context,{name:"Amy", age:18, isVis:false});
+g_object.setSessionId("123456");
+g_object.save("local").then((result) => {
+    console.log("save callback");
+    console.info("save sessionId " + result.sessionId);
+    console.info("save version " + result.version);
+    console.info("save deviceId " + result.deviceId);
+}, () => {
     console.error("save failed");
 });
 ```
@@ -317,18 +688,62 @@ If the object is stored on another device, the data on the local device will be
 **System capability**: SystemCapability.DistributedDataManager.DataObject.DistributedObject
 
 **Parameters**
+
 | Name| Type| Mandatory| Description|
 | -------- | -------- | -------- | -------- |
-| callback | AsyncCallback&lt;[RevokeSaveSuccessResponse](#revokesavesuccessresponse9)&gt; | No| Callback used to return **RevokeSaveSuccessResponse**, which contains the session ID.|
+| callback | AsyncCallback&lt;[RevokeSaveSuccessResponse](#revokesavesuccessresponse9)&gt; | Yes| Callback invoked to return **RevokeSaveSuccessResponse**, which contains the session ID.|
 
 **Example**
 
+FA model:
+
 ```js
 import distributedObject from '@ohos.data.distributedDataObject';
-var g_object = distributedObject.createDistributedObject({name:"Amy", age:18, isVis:false});
+import featureAbility from '@ohos.ability.featureAbility';
+// Obtain the context.
+let context = featureAbility.getContext();
+let g_object = distributedObject.create(context, {name:"Amy", age:18, isVis:false});
+g_object.setSessionId("123456");
+// Save data for persistence. 
+g_object.save("local", (result) => {
+    console.log("save callback");
+    console.info("save sessionId " + result.sessionId);
+    console.info("save version " + result.version);
+    console.info("save deviceId " + result.deviceId);
+});
+// Delete the persistence data.
+g_object.revokeSave((result) => {
+  console.log("revokeSave callback");
+  console.log("revokeSave sessionId " + result.sessionId);
+});
+```
+
+Stage model:
+
+```ts
+import distributedObject from '@ohos.data.distributedDataObject';
+import UIAbility from '@ohos.app.ability.UIAbility';
+
+// Obtain the context.
+let context;
+class EntryAbility extends UIAbility {
+    onWindowStageCreate(windowStage) {
+        context = this.context
+    }
+}
+let g_object = distributedObject.create(context, {name:"Amy", age:18, isVis:false});
 g_object.setSessionId("123456");
-g_object.revokeSave((result, data) =>{
+// Save data for persistence.
+g_object.save("local", (result) => {
+    console.log("save callback");
+    console.info("save sessionId " + result.sessionId);
+    console.info("save version " + result.version);
+    console.info("save deviceId " + result.deviceId);
+});
+// Delete the persistence data.
+g_object.revokeSave((result) => {
   console.log("revokeSave callback");
+  console.log("revokeSave sessionId " + result.sessionId);
 });
 ```
 
@@ -351,14 +766,266 @@ If the object is stored on another device, the data on the local device will be
 
 **Example**
 
-```js
+FA model:
+
+```ts
+import distributedObject from '@ohos.data.distributedDataObject';
+import featureAbility from '@ohos.ability.featureAbility';
+// Obtain the context.
+let context = featureAbility.getContext();
+let g_object = distributedObject.create(context, {name:"Amy", age:18, isVis:false});
+g_object.setSessionId("123456");
+// Save data for persistence.
+g_object.save("local").then((result) => {
+    console.log("save callback");
+    console.info("save sessionId " + result.sessionId);
+    console.info("save version " + result.version);
+    console.info("save deviceId " + result.deviceId);
+}, () => {
+    console.error("save failed");
+});
+// Delete the persistence data.
+g_object.revokeSave().then((result) => {
+    console.log("revokeSave callback");
+    console.log("sessionId" + result.sessionId);
+}, () => {
+    console.error("revokeSave failed");
+});
+```
+
+Stage model:
+
+```ts
 import distributedObject from '@ohos.data.distributedDataObject';
-var g_object = distributedObject.createDistributedObject({name:"Amy", age:18, isVis:false});
+import UIAbility from '@ohos.app.ability.UIAbility';
+
+// Obtain the context.
+let context;
+class EntryAbility extends UIAbility {
+    onWindowStageCreate(windowStage) {
+        context = this.context
+    }
+}
+let g_object = distributedObject.create(context, {name:"Amy", age:18, isVis:false});
 g_object.setSessionId("123456");
-g_object.revokeSave().then((result)=>{
+g_object.save("local").then((result) => {
+    console.log("save callback");
+    console.info("save sessionId " + result.sessionId);
+    console.info("save version " + result.version);
+    console.info("save deviceId " + result.deviceId);
+}, () => {
+    console.error("save failed");
+});
+
+// Delete the persistence data.
+g_object.revokeSave().then((result) => {
     console.log("revokeSave callback");
     console.log("sessionId" + result.sessionId);
-}, ()=>{
+}, () => {
     console.error("revokeSave failed");
 });
 ```
+
+## distributedObject.createDistributedObject<sup>(deprecated)</sup>
+
+createDistributedObject(source: object): DistributedObject
+
+
+Creates a distributed data object.
+
+> **NOTE**
+>
+> This API is supported since API version 8 and deprecated since API version 9. You are advised to use **distributedObject.create**.
+
+**System capability**: SystemCapability.DistributedDataManager.DataObject.DistributedObject
+
+**Parameters**
+
+| Name| Type| Mandatory| Description|
+| -------- | -------- | -------- | -------- |
+| source | object | Yes| Attributes of the distributed data object.|
+
+**Return value**
+
+| Type| Description|
+| -------- | -------- |
+| [DistributedObject](#distributedobjectdeprecated) | Distributed data object created.|
+
+**Example**
+
+```js
+import distributedObject from '@ohos.data.distributedDataObject';
+// Create a distributed data object, which contains attributes of the string, number, boolean, and object types.
+let g_object = distributedObject.createDistributedObject({name:"Amy", age:18, isVis:false, parent:{mother:"jack mom",father:"jack Dad"}});
+```
+
+## DistributedObject<sup>(deprecated)</sup>
+
+Provides APIs for managing a distributed data object.
+
+### setSessionId<sup>(deprecated)</sup>
+
+setSessionId(sessionId?: string): boolean
+
+Sets a session ID for synchronization. Automatic synchronization is performed for multiple devices with the same session ID on a trusted network.
+
+> **NOTE**
+>
+> This API is supported since API version 8 and deprecated since API version 9. You are advised to use [setSessionId](#setsessionid9).
+
+**Required permissions**: ohos.permission.DISTRIBUTED_DATASYNC
+
+**System capability**: SystemCapability.DistributedDataManager.DataObject.DistributedObject
+
+**Parameters**
+
+| Name| Type| Mandatory| Description|
+| -------- | -------- | -------- | -------- |
+| sessionId | string | No| ID of a distributed data object on a trusted network. To remove a distributed data object from the network, set this parameter to "" or leave it empty.|
+
+**Return value**
+
+| Type| Description|
+| -------- | -------- |
+| boolean | Returns **true** if the session ID is set successfully;<br>returns **false** otherwise. |
+
+**Example**
+
+```js
+import distributedObject from '@ohos.data.distributedDataObject';
+let g_object = distributedObject.createDistributedObject({name:"Amy", age:18, isVis:false, parent:{mother:"jack mom",father:"jack Dad"}});;
+// Add g_object to the distributed network.
+g_object.setSessionId(distributedObject.genSessionId());
+// Remove g_object from the distributed network.
+g_object.setSessionId("");
+```
+
+### on('change')<sup>(deprecated)</sup>
+
+on(type: 'change', callback: Callback<{ sessionId: string, fields: Array&lt;string&gt; }>): void
+
+Subscribes to data changes of this distributed data object.
+
+> **NOTE**
+>
+> This API is supported since API version 8 and deprecated since API version 9. You are advised to use [on('change')](#onchange9).
+
+**System capability**: SystemCapability.DistributedDataManager.DataObject.DistributedObject
+
+**Parameters**
+
+| Name| Type| Mandatory| Description|
+| -------- | -------- | -------- | -------- |
+| type | string | Yes| Event type to subscribe to. The value is **change**, which indicates data changes.|
+| callback | Callback<{ sessionId: string, fields: Array&lt;string&gt; }> | Yes| Callback invoked to return the changes of the distributed data object.<br>**sessionId** indicates the session ID of the distributed data object.<br>**fields** indicates the changed attributes of the distributed data object.|
+
+**Example**
+
+```js
+import distributedObject from '@ohos.data.distributedDataObject';  
+let g_object = distributedObject.createDistributedObject({name:"Amy", age:18, isVis:false, parent:{mother:"jack mom",father:"jack Dad"}});
+globalThis.changeCallback = (sessionId, changeData) => {
+    console.info("change" + sessionId);
+    if (changeData != null && changeData != undefined) {
+        changeData.forEach(element => {
+        console.info("changed !" + element + " " + g_object[element]);
+        });
+    }
+}
+g_object.on("change", globalThis.changeCallback);
+```
+
+### off('change')<sup>(deprecated)</sup>
+
+off(type: 'change', callback?: Callback<{ sessionId: string, fields: Array&lt;string&gt; }>): void
+
+Unsubscribes from the data changes of this distributed data object.
+
+> **NOTE**
+>
+> This API is supported since API version 8 and deprecated since API version 9. You are advised to use [off('change')](#offchange9).
+
+**System capability**: SystemCapability.DistributedDataManager.DataObject.DistributedObject
+
+**Parameters**
+
+| Name| Type| Mandatory| Description|
+| -------- | -------- | -------- | -------- |
+| type | string | Yes| Event type to unsubscribe from. The value is **change**, which indicates data changes. |
+| callback | Callback<{ sessionId: string, fields: Array&lt;string&gt; }> | No| Callback for data changes. If this parameter is not specified, all data change callbacks of this distributed data object will be unregistered.<br>**sessionId** indicates the session ID of the distributed data object.<br>**fields** indicates the changed attributes of the distributed data object.|
+
+
+**Example**
+
+```js
+import distributedObject from '@ohos.data.distributedDataObject';  
+let g_object = distributedObject.createDistributedObject({name:"Amy", age:18, isVis:false, parent:{mother:"jack mom",father:"jack Dad"}});
+// Unregister the specified data change callback.
+g_object.off("change", globalThis.changeCallback);
+// Unregister all data change callbacks.
+g_object.off("change");
+```
+
+### on('status')<sup>(deprecated)</sup>
+
+on(type: 'status', callback: Callback<{ sessionId: string, networkId: string, status: 'online' | 'offline' }>): void
+
+Subscribes to status changes of this distributed data object.
+
+> **NOTE**
+>
+> This API is supported since API version 8 and deprecated since API version 9. You are advised to use [on('status')](#onstatus9).
+
+**System capability**: SystemCapability.DistributedDataManager.DataObject.DistributedObject
+
+**Parameters**
+
+| Name| Type| Mandatory| Description|
+| -------- | -------- | -------- | -------- |
+| type | string | Yes| Event type to subscribe to. The value is **status**, which indicates the status change (online or offline) of the distributed data object.|
+| callback | Callback<{ sessionId: string, networkId: string, status: 'online' \| 'offline' }> | Yes| Callback invoked to return the status change.<br>**sessionId** indicates the session ID of the distributed data object.<br>**networkId** indicates the object device ID, that is, **deviceId**.<br>**status** indicates the object status, which can be online or offline.|
+
+**Example**
+
+```js
+import distributedObject from '@ohos.data.distributedDataObject';
+globalThis.statusCallback = (sessionId, networkId, status) => {
+    globalThis.response += "status changed " + sessionId + " " + status + " " + networkId;
+}
+let g_object = distributedObject.createDistributedObject({name:"Amy", age:18, isVis:false, parent:{mother:"jack mom",father:"jack Dad"}});
+g_object.on("status", globalThis.statusCallback);
+```
+
+### off('status')<sup>(deprecated)</sup>
+
+off(type: 'status', callback?: Callback<{ sessionId: string, deviceId: string, status: 'online' | 'offline' }>): void
+
+Unsubscribes from the status change of this distributed data object.
+
+> **NOTE**
+>
+> This API is supported since API version 8 and deprecated since API version 9. You are advised to use [off('status')](#offstatus9) instead.
+
+**System capability**: SystemCapability.DistributedDataManager.DataObject.DistributedObject
+
+**Parameters**
+
+| Name| Type| Mandatory| Description|
+| -------- | -------- | -------- | -------- |
+| type | string | Yes| Event type to unsubscribe from. The value is **status**, which indicates the status change (online or offline) of the distributed data object. |
+| callback | Callback<{ sessionId: string, deviceId: string, status: 'online' \| 'offline' }> | No| Callback for status changes. If this parameter is not specified, all status change callbacks of this distributed data object will be unregistered.<br>**sessionId** indicates the session ID of the distributed data object.<br>**deviceId** indicates the device ID of the distributed data object.<br>**status** indicates the object status, which can be online or offline.|
+
+
+**Example**
+
+```js
+import distributedObject from '@ohos.data.distributedDataObject'; 
+let g_object = distributedObject.createDistributedObject({name:"Amy", age:18, isVis:false, parent:{mother:"jack mom",father:"jack Dad"}});
+globalThis.statusCallback = (sessionId, networkId, status) => {
+    globalThis.response += "status changed " + sessionId + " " + status + " " + networkId;
+}
+// Unregister the specified status change callback.
+g_object.off("status",globalThis.statusCallback);
+// Unregister all status change callbacks.
+g_object.off("status");
+```