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提交 70130a55 编写于 作者: A Annie_wang
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update docs 

Signed-off-by: NAnnie_wang <annie.wangli@huawei.com>
上级 088349fd
隐藏空白更改
内联 并排
Showing with 208 addition and 209 deletion
en/application-dev/reference/apis/js-apis-data-preferences.md
浏览文件 @ 70130a55
...@@ -55,14 +55,14 @@ let preferences = null; ...@@ -55,14 +55,14 @@ let preferences = null;
try { try {
data_preferences.getPreferences(context, 'mystore', function (err, val) { data_preferences.getPreferences(context, 'mystore', function (err, val) {
if (err) { if (err) {
console.info("Failed to obtain the preferences. code =" + err.code + ", message =" + err.message); console.error("Failed to get preferences. code =" + err.code + ", message =" + err.message);
return; return;
} }
preferences = val; preferences = val;
console.info("Obtained the preferences successfully."); console.info("Succeeded in getting preferences.");
}) })
} catch (err) { } catch (err) {
console.info("Failed to obtain the preferences. code =" + err.code + ", message =" + err.message); console.error("Failed to get preferences. code =" + err.code + ", message =" + err.message);
} }
``` ```
...@@ -78,14 +78,14 @@ class EntryAbility extends UIAbility { ...@@ -78,14 +78,14 @@ class EntryAbility extends UIAbility {
try { try {
data_preferences.getPreferences(this.context, 'mystore', function (err, val) { data_preferences.getPreferences(this.context, 'mystore', function (err, val) {
if (err) { if (err) {
console.info("Failed to obtain the preferences. code =" + err.code + ", message =" + err.message); console.error("Failed to get preferences. code =" + err.code + ", message =" + err.message);
return; return;
} }
preferences = val; preferences = val;
console.info("Obtained the preferences successfully."); console.info("Succeeded in getting preferences.");
}) })
} catch (err) { } catch (err) {
console.info("Failed to obtain the preferences. code =" + err.code + ", message =" + err.message); console.error("Failed to get preferences. code =" + err.code + ", message =" + err.message);
} }
} }
} }
...@@ -126,12 +126,12 @@ try { ...@@ -126,12 +126,12 @@ try {
let promise = data_preferences.getPreferences(context, 'mystore'); let promise = data_preferences.getPreferences(context, 'mystore');
promise.then((object) => { promise.then((object) => {
preferences = object; preferences = object;
console.info("Obtained the preferences successfully."); console.info("Succeeded in getting preferences.");
}).catch((err) => { }).catch((err) => {
console.info("Failed to obtain the preferences. code =" + err.code + ", message =" + err.message); console.error("Failed to get preferences. code =" + err.code + ", message =" + err.message);
}) })
} catch(err) { } catch(err) {
console.info("Failed to obtain the preferences. code =" + err.code + ", message =" + err.message); console.error("Failed to get preferences. code =" + err.code + ", message =" + err.message);
} }
``` ```
...@@ -148,12 +148,12 @@ class EntryAbility extends UIAbility { ...@@ -148,12 +148,12 @@ class EntryAbility extends UIAbility {
let promise = data_preferences.getPreferences(this.context, 'mystore'); let promise = data_preferences.getPreferences(this.context, 'mystore');
promise.then((object) => { promise.then((object) => {
preferences = object; preferences = object;
console.info("Obtained the preferences successfully."); console.info("Succeeded in getting preferences.");
}).catch((err) => { }).catch((err) => {
console.info("Failed to obtain the preferences. code =" + err.code + ", message =" + err.message); console.error("Failed to get preferences. code =" + err.code + ", message =" + err.message);
}) })
} catch(err) { } catch(err) {
console.info("Failed to obtain the preferences. code =" + err.code + ", message =" + err.message); console.error("Failed to get preferences. code =" + err.code + ", message =" + err.message);
} }
} }
} }
...@@ -195,16 +195,16 @@ let context = featureAbility.getContext(); ...@@ -195,16 +195,16 @@ let context = featureAbility.getContext();
let preferences = null; let preferences = null;
try { try {
data_preferences.getPreferences(context, {name: 'mystore'}, function (err, val) { data_preferences.getPreferences(context, { name: 'mystore' }, function (err, val) {
if (err) { if (err) {
console.info("Failed to obtain the preferences. code =" + err.code + ", message =" + err.message); console.error("Failed to get preferences. code =" + err.code + ", message =" + err.message);
return; return;
} }
preferences = val; preferences = val;
console.info("Obtained the preferences successfully."); console.info("Succeeded in getting preferences.");
}) })
} catch (err) { } catch (err) {
console.info("Failed to obtain the preferences. code =" + err.code + ", message =" + err.message); console.error("Failed to get preferences. code =" + err.code + ", message =" + err.message);
} }
``` ```
...@@ -219,16 +219,16 @@ let preferences = null; ...@@ -219,16 +219,16 @@ let preferences = null;
class EntryAbility extends UIAbility { class EntryAbility extends UIAbility {
onWindowStageCreate(windowStage) { onWindowStageCreate(windowStage) {
try { try {
data_preferences.getPreferences(this.context, {name: 'mystore', dataGroupId:'myId'}, function (err, val) { data_preferences.getPreferences(this.context, { name: 'mystore', dataGroupId:'myId' }, function (err, val) {
if (err) { if (err) {
console.info("Failed to obtain the preferences. code =" + err.code + ", message =" + err.message); console.error("Failed to get preferences. code =" + err.code + ", message =" + err.message);
return; return;
} }
preferences = val; preferences = val;
console.info("Obtained the preferences successfully."); console.info("Succeeded in getting preferences.");
}) })
} catch (err) { } catch (err) {
console.info("Failed to obtain the preferences. code =" + err.code + ", message =" + err.message); console.error("Failed to get preferences. code =" + err.code + ", message =" + err.message);
} }
} }
} }
...@@ -275,15 +275,15 @@ let context = featureAbility.getContext(); ...@@ -275,15 +275,15 @@ let context = featureAbility.getContext();
let preferences = null; let preferences = null;
try { try {
let promise = data_preferences.getPreferences(context, {name: 'mystore'}); let promise = data_preferences.getPreferences(context, { name: 'mystore' });
promise.then((object) => { promise.then((object) => {
preferences = object; preferences = object;
console.info("Obtained the preferences successfully."); console.info("Succeeded in getting preferences.");
}).catch((err) => { }).catch((err) => {
console.info("Failed to obtain the preferences. code =" + err.code + ", message =" + err.message); console.error("Failed to get preferences. code =" + err.code + ", message =" + err.message);
}) })
} catch(err) { } catch(err) {
console.info("Failed to obtain the preferences. code =" + err.code + ", message =" + err.message); console.error("Failed to get preferences. code =" + err.code + ", message =" + err.message);
} }
``` ```
...@@ -297,15 +297,15 @@ let preferences = null; ...@@ -297,15 +297,15 @@ let preferences = null;
class EntryAbility extends UIAbility { class EntryAbility extends UIAbility {
onWindowStageCreate(windowStage) { onWindowStageCreate(windowStage) {
try { try {
let promise = data_preferences.getPreferences(this.context, {name: 'mystore', dataGroupId:'myId'}); let promise = data_preferences.getPreferences(this.context, { name: 'mystore', dataGroupId:'myId' });
promise.then((object) => { promise.then((object) => {
preferences = object; preferences = object;
console.info("Obtained the preferences successfully."); console.info("Succeeded in getting preferences.");
}).catch((err) => { }).catch((err) => {
console.info("Failed to obtain the preferences. code =" + err.code + ", message =" + err.message); console.error("Failed to get preferences. code =" + err.code + ", message =" + err.message);
}) })
} catch(err) { } catch(err) {
console.info("Failed to obtain the preferences. code =" + err.code + ", message =" + err.message); console.error("Failed to get preferences. code =" + err.code + ", message =" + err.message);
} }
} }
} }
...@@ -350,13 +350,13 @@ let context = featureAbility.getContext(); ...@@ -350,13 +350,13 @@ let context = featureAbility.getContext();
try { try {
data_preferences.deletePreferences(context, 'mystore', function (err) { data_preferences.deletePreferences(context, 'mystore', function (err) {
if (err) { if (err) {
console.info("Failed to delete the preferences. code =" + err.code + ", message =" + err.message); console.error("Failed to delete preferences. code =" + err.code + ", message =" + err.message);
return; return;
} }
console.info("Deleted the preferences successfully." ); console.info("Succeeded in deleting preferences." );
}) })
} catch (err) { } catch (err) {
console.info("Failed to delete the preferences. code =" + err.code + ", message =" + err.message); console.error("Failed to delete preferences. code =" + err.code + ", message =" + err.message);
} }
``` ```
...@@ -370,13 +370,13 @@ class EntryAbility extends UIAbility { ...@@ -370,13 +370,13 @@ class EntryAbility extends UIAbility {
try { try {
data_preferences.deletePreferences(this.context, 'mystore', function (err) { data_preferences.deletePreferences(this.context, 'mystore', function (err) {
if (err) { if (err) {
console.info("Failed to delete the preferences. code =" + err.code + ", message =" + err.message); console.error("Failed to delete preferences. code =" + err.code + ", message =" + err.message);
return; return;
} }
console.info("Deleted the preferences successfully." ); console.info("Succeeded in deleting preferences." );
}) })
} catch (err) { } catch (err) {
console.info("Failed to delete the preferences. code =" + err.code + ", message =" + err.message); console.error("Failed to delete preferences. code =" + err.code + ", message =" + err.message);
} }
} }
} }
...@@ -425,12 +425,12 @@ let context = featureAbility.getContext(); ...@@ -425,12 +425,12 @@ let context = featureAbility.getContext();
try { try {
let promise = data_preferences.deletePreferences(context, 'mystore'); let promise = data_preferences.deletePreferences(context, 'mystore');
promise.then(() => { promise.then(() => {
console.info("Deleted the preferences successfully."); console.info("Succeeded in deleting preferences.");
}).catch((err) => { }).catch((err) => {
console.info("Failed to delete the preferences. code =" + err.code + ", message =" + err.message); console.error("Failed to delete preferences. code =" + err.code + ", message =" + err.message);
}) })
} catch(err) { } catch(err) {
console.info("Failed to delete the preferences. code =" + err.code + ", message =" + err.message); console.error("Failed to delete preferences. code =" + err.code + ", message =" + err.message);
} }
``` ```
...@@ -444,12 +444,12 @@ class EntryAbility extends UIAbility { ...@@ -444,12 +444,12 @@ class EntryAbility extends UIAbility {
try{ try{
let promise = data_preferences.deletePreferences(this.context, 'mystore'); let promise = data_preferences.deletePreferences(this.context, 'mystore');
promise.then(() => { promise.then(() => {
console.info("Deleted the preferences successfully."); console.info("Succeeded in deleting preferences.");
}).catch((err) => { }).catch((err) => {
console.info("Failed to delete the preferences. code =" + err.code + ", message =" + err.message); console.error("Failed to delete preferences. code =" + err.code + ", message =" + err.message);
}) })
} catch(err) { } catch(err) {
console.info("Failed to delete the preferences. code =" + err.code + ", message =" + err.message); console.error("Failed to delete preferences. code =" + err.code + ", message =" + err.message);
} }
} }
} }
...@@ -493,15 +493,15 @@ import featureAbility from '@ohos.ability.featureAbility'; ...@@ -493,15 +493,15 @@ import featureAbility from '@ohos.ability.featureAbility';
let context = featureAbility.getContext(); let context = featureAbility.getContext();
try { try {
data_preferences.deletePreferences(context, {name: 'mystore'}, function (err) { data_preferences.deletePreferences(context, { name: 'mystore' }, function (err) {
if (err) { if (err) {
console.info("Failed to delete the preferences. code =" + err.code + ", message =" + err.message); console.error("Failed to delete preferences. code =" + err.code + ", message =" + err.message);
return; return;
} }
console.info("Deleted the preferences successfully." ); console.info("Succeeded in deleting preferences." );
}) })
} catch (err) { } catch (err) {
console.info("Failed to delete the preferences. code =" + err.code + ", message =" + err.message); console.error("Failed to delete preferences. code =" + err.code + ", message =" + err.message);
} }
``` ```
...@@ -513,15 +513,15 @@ import UIAbility from '@ohos.app.ability.UIAbility'; ...@@ -513,15 +513,15 @@ import UIAbility from '@ohos.app.ability.UIAbility';
class EntryAbility extends UIAbility { class EntryAbility extends UIAbility {
onWindowStageCreate(windowStage) { onWindowStageCreate(windowStage) {
try { try {
data_preferences.deletePreferences(this.context, {name: 'mystore', dataGroupId:'myId'}, function (err) { data_preferences.deletePreferences(this.context, { name: 'mystore', dataGroupId:'myId' }, function (err) {
if (err) { if (err) {
console.info("Failed to delete the preferences. code =" + err.code + ", message =" + err.message); console.error("Failed to delete preferences. code =" + err.code + ", message =" + err.message);
return; return;
} }
console.info("Deleted the preferences successfully." ); console.info("Succeeded in deleting preferences." );
}) })
} catch (err) { } catch (err) {
console.info("Failed to delete the preferences. code =" + err.code + ", message =" + err.message); console.error("Failed to delete preferences. code =" + err.code + ", message =" + err.message);
} }
} }
} }
...@@ -571,14 +571,14 @@ import featureAbility from '@ohos.ability.featureAbility'; ...@@ -571,14 +571,14 @@ import featureAbility from '@ohos.ability.featureAbility';
let context = featureAbility.getContext(); let context = featureAbility.getContext();
try { try {
let promise = data_preferences.deletePreferences(context, {name: 'mystore'}); let promise = data_preferences.deletePreferences(context, { name: 'mystore' });
promise.then(() => { promise.then(() => {
console.info("Deleted the preferences successfully."); console.info("Succeeded in deleting preferences.");
}).catch((err) => { }).catch((err) => {
console.info("Failed to delete the preferences. code =" + err.code + ", message =" + err.message); console.error("Failed to delete preferences. code =" + err.code + ", message =" + err.message);
}) })
} catch(err) { } catch(err) {
console.info("Failed to delete the preferences. code =" + err.code + ", message =" + err.message); console.error("Failed to delete preferences. code =" + err.code + ", message =" + err.message);
} }
``` ```
...@@ -590,14 +590,14 @@ import UIAbility from '@ohos.app.ability.UIAbility'; ...@@ -590,14 +590,14 @@ import UIAbility from '@ohos.app.ability.UIAbility';
class EntryAbility extends UIAbility { class EntryAbility extends UIAbility {
onWindowStageCreate(windowStage) { onWindowStageCreate(windowStage) {
try{ try{
let promise = data_preferences.deletePreferences(this.context, {name: 'mystore', dataGroupId:'myId'}); let promise = data_preferences.deletePreferences(this.context, { name: 'mystore', dataGroupId:'myId' });
promise.then(() => { promise.then(() => {
console.info("Deleted the preferences successfully."); console.info("Succeeded in deleting preferences.");
}).catch((err) => { }).catch((err) => {
console.info("Failed to delete the preferences. code =" + err.code + ", message =" + err.message); console.error("Failed to delete preferences. code =" + err.code + ", message =" + err.message);
}) })
} catch(err) { } catch(err) {
console.info("Failed to delete the preferences. code =" + err.code + ", message =" + err.message); console.error("Failed to delete preferences. code =" + err.code + ", message =" + err.message);
} }
} }
} }
...@@ -635,13 +635,13 @@ let context = featureAbility.getContext(); ...@@ -635,13 +635,13 @@ let context = featureAbility.getContext();
try { try {
data_preferences.removePreferencesFromCache(context, 'mystore', function (err) { data_preferences.removePreferencesFromCache(context, 'mystore', function (err) {
if (err) { if (err) {
console.info("Failed to remove preferences. code =" + err.code + ", message =" + err.message); console.error("Failed to remove preferences. code =" + err.code + ", message =" + err.message);
return; return;
} }
console.info("Removed the preferences successfully."); console.info("Succeeded in removing preferences.");
}) })
} catch (err) { } catch (err) {
console.info("Failed to remove preferences. code =" + err.code + ", message =" + err.message); console.error("Failed to remove preferences. code =" + err.code + ", message =" + err.message);
} }
``` ```
...@@ -655,13 +655,13 @@ class EntryAbility extends UIAbility { ...@@ -655,13 +655,13 @@ class EntryAbility extends UIAbility {
try { try {
data_preferences.removePreferencesFromCache(this.context, 'mystore', function (err) { data_preferences.removePreferencesFromCache(this.context, 'mystore', function (err) {
if (err) { if (err) {
console.info("Failed to remove preferences. code =" + err.code + ", message =" + err.message); console.error("Failed to remove preferences. code =" + err.code + ", message =" + err.message);
return; return;
} }
console.info("Removed the preferences successfully."); console.info("Succeeded in removing preferences.");
}) })
} catch (err) { } catch (err) {
console.info("Failed to remove preferences. code =" + err.code + ", message =" + err.message); console.error("Failed to remove preferences. code =" + err.code + ", message =" + err.message);
} }
} }
} }
...@@ -702,13 +702,13 @@ import featureAbility from '@ohos.ability.featureAbility'; ...@@ -702,13 +702,13 @@ import featureAbility from '@ohos.ability.featureAbility';
let context = featureAbility.getContext(); let context = featureAbility.getContext();
try { try {
let promise = data_preferences.removePreferencesFromCache(context, 'mystore'); let promise = data_preferences.removePreferencesFromCache(context, 'mystore');
promise.then(() => { promise.then(() => {
console.info("Removed the preferences successfully."); console.info("Succeeded in removing preferences.");
}).catch((err) => { }).catch((err) => {
console.info("Failed to remove preferences. code =" + err.code + ", message =" + err.message); console.error("Failed to remove preferences. code =" + err.code + ", message =" + err.message);
}) })
} catch(err) { } catch(err) {
console.info("Failed to remove preferences. code =" + err.code + ", message =" + err.message); console.error("Failed to remove preferences. code =" + err.code + ", message =" + err.message);
} }
``` ```
...@@ -722,12 +722,12 @@ class EntryAbility extends UIAbility { ...@@ -722,12 +722,12 @@ class EntryAbility extends UIAbility {
try { try {
let promise = data_preferences.removePreferencesFromCache(this.context, 'mystore'); let promise = data_preferences.removePreferencesFromCache(this.context, 'mystore');
promise.then(() => { promise.then(() => {
console.info("Removed the preferences successfully."); console.info("Succeeded in removing preferences.");
}).catch((err) => { }).catch((err) => {
console.info("Failed to remove preferences. code =" + err.code + ", message =" + err.message); console.error("Failed to remove preferences. code =" + err.code + ", message =" + err.message);
}) })
} catch(err) { } catch(err) {
console.info("Failed to remove preferences. code =" + err.code + ", message =" + err.message); console.error("Failed to remove preferences. code =" + err.code + ", message =" + err.message);
} }
} }
} }
...@@ -763,7 +763,7 @@ let context = featureAbility.getContext(); ...@@ -763,7 +763,7 @@ let context = featureAbility.getContext();
try { try {
data_preferences.removePreferencesFromCacheSync(context, 'mystore'); data_preferences.removePreferencesFromCacheSync(context, 'mystore');
} catch(err) { } catch(err) {
console.info("Failed to remove preferences. code =" + err.code + ", message =" + err.message); console.error("Failed to remove preferences. code =" + err.code + ", message =" + err.message);
} }
``` ```
...@@ -777,7 +777,7 @@ class EntryAbility extends UIAbility { ...@@ -777,7 +777,7 @@ class EntryAbility extends UIAbility {
try { try {
data_preferences.removePreferencesFromCacheSync(this.context, 'mystore'); data_preferences.removePreferencesFromCacheSync(this.context, 'mystore');
} catch(err) { } catch(err) {
console.info("Failed to remove preferences. code =" + err.code + ", message =" + err.message); console.error("Failed to remove preferences. code =" + err.code + ", message =" + err.message);
} }
} }
} }
...@@ -821,15 +821,15 @@ FA model: ...@@ -821,15 +821,15 @@ FA model:
import featureAbility from '@ohos.ability.featureAbility'; import featureAbility from '@ohos.ability.featureAbility';
let context = featureAbility.getContext(); let context = featureAbility.getContext();
try { try {
data_preferences.removePreferencesFromCache(context, {name: 'mystore'}, function (err) { data_preferences.removePreferencesFromCache(context, { name: 'mystore' }, function (err) {
if (err) { if (err) {
console.info("Failed to remove preferences. code =" + err.code + ", message =" + err.message); console.error("Failed to remove preferences. code =" + err.code + ", message =" + err.message);
return; return;
} }
console.info("Removed the preferences successfully."); console.info("Succeeded in removing preferences.");
}) })
} catch (err) { } catch (err) {
console.info("Failed to remove preferences. code =" + err.code + ", message =" + err.message); console.error("Failed to remove preferences. code =" + err.code + ", message =" + err.message);
} }
``` ```
...@@ -841,15 +841,15 @@ import UIAbility from '@ohos.app.ability.UIAbility'; ...@@ -841,15 +841,15 @@ import UIAbility from '@ohos.app.ability.UIAbility';
class EntryAbility extends UIAbility { class EntryAbility extends UIAbility {
onWindowStageCreate(windowStage) { onWindowStageCreate(windowStage) {
try { try {
data_preferences.removePreferencesFromCache(this.context, {name: 'mystore', dataGroupId:'myId'}, function (err) { data_preferences.removePreferencesFromCache(this.context, { name: 'mystore', dataGroupId:'myId' }, function (err) {
if (err) { if (err) {
console.info("Failed to remove preferences. code =" + err.code + ", message =" + err.message); console.error("Failed to remove preferences. code =" + err.code + ", message =" + err.message);
return; return;
} }
console.info("Removed the preferences successfully."); console.info("Succeeded in removing preferences.");
}) })
} catch (err) { } catch (err) {
console.info("Failed to remove preferences. code =" + err.code + ", message =" + err.message); console.error("Failed to remove preferences. code =" + err.code + ", message =" + err.message);
} }
} }
} }
...@@ -898,14 +898,14 @@ FA model: ...@@ -898,14 +898,14 @@ FA model:
import featureAbility from '@ohos.ability.featureAbility'; import featureAbility from '@ohos.ability.featureAbility';
let context = featureAbility.getContext(); let context = featureAbility.getContext();
try { try {
let promise = data_preferences.removePreferencesFromCache(context, {name: 'mystore'}); let promise = data_preferences.removePreferencesFromCache(context, { name: 'mystore' });
promise.then(() => { promise.then(() => {
console.info("Removed the preferences successfully."); console.info("Succeeded in removing preferences.");
}).catch((err) => { }).catch((err) => {
console.info("Failed to remove preferences. code =" + err.code + ", message =" + err.message); console.error("Failed to remove preferences. code =" + err.code + ", message =" + err.message);
}) })
} catch(err) { } catch(err) {
console.info("Failed to remove preferences. code =" + err.code + ", message =" + err.message); console.error("Failed to remove preferences. code =" + err.code + ", message =" + err.message);
} }
``` ```
...@@ -917,14 +917,14 @@ import UIAbility from '@ohos.app.ability.UIAbility'; ...@@ -917,14 +917,14 @@ import UIAbility from '@ohos.app.ability.UIAbility';
class EntryAbility extends UIAbility { class EntryAbility extends UIAbility {
onWindowStageCreate(windowStage) { onWindowStageCreate(windowStage) {
try { try {
let promise = data_preferences.removePreferencesFromCache(this.context, {name: 'mystore', dataGroupId:'myId'}); let promise = data_preferences.removePreferencesFromCache(this.context, { name: 'mystore', dataGroupId:'myId' });
promise.then(() => { promise.then(() => {
console.info("Removed the preferences successfully."); console.info("Succeeded in removing preferences.");
}).catch((err) => { }).catch((err) => {
console.info("Failed to remove preferences. code =" + err.code + ", message =" + err.message); console.error("Failed to remove preferences. code =" + err.code + ", message =" + err.message);
}) })
} catch(err) { } catch(err) {
console.info("Failed to remove preferences. code =" + err.code + ", message =" + err.message); console.error("Failed to remove preferences. code =" + err.code + ", message =" + err.message);
} }
} }
} }
...@@ -970,13 +970,13 @@ Obtains the value corresponding to the specified key from the cached **Preferenc ...@@ -970,13 +970,13 @@ Obtains the value corresponding to the specified key from the cached **Preferenc
try { try {
preferences.get('startup', 'default', function (err, val) { preferences.get('startup', 'default', function (err, val) {
if (err) { if (err) {
console.info("Failed to obtain value of 'startup'. code =" + err.code + ", message =" + err.message); console.error("Failed to get value of 'startup'. code =" + err.code + ", message =" + err.message);
return; return;
} }
console.info("Obtained the value of 'startup' successfully. val: " + val); console.info("Obtained the value of 'startup' successfully. val: " + val);
}) })
} catch (err) { } catch (err) {
console.info("Failed to obtain value of 'startup'. code =" + err.code + ", message =" + err.message); console.error("Failed to get value of 'startup'. code =" + err.code + ", message =" + err.message);
} }
``` ```
...@@ -1010,10 +1010,10 @@ try { ...@@ -1010,10 +1010,10 @@ try {
promise.then((data) => { promise.then((data) => {
console.info("Got the value of 'startup'. Data: " + data); console.info("Got the value of 'startup'. Data: " + data);
}).catch((err) => { }).catch((err) => {
console.info("Failed to obtain value of 'startup'. code =" + err.code + ", message =" + err.message); console.error("Failed to get value of 'startup'. code =" + err.code + ", message =" + err.message);
}) })
} catch(err) { } catch(err) {
console.info("Failed to obtain value of 'startup'. code =" + err.code + ", message =" + err.message); console.error("Failed to get value of 'startup'. code =" + err.code + ", message =" + err.message);
} }
``` ```
...@@ -1043,9 +1043,9 @@ Synchronously obtains the value corresponding to the specified key from the cach ...@@ -1043,9 +1043,9 @@ Synchronously obtains the value corresponding to the specified key from the cach
```js ```js
try { try {
let value = preferences.getSync('startup', 'default'); let value = preferences.getSync('startup', 'default');
console.info("Obtained the value of 'startup'. Data: " + value); console.info("Succeeded in getting value of 'startup'. Data: " + value);
} catch(err) { } catch(err) {
console.info("Failed to obtain value of 'startup'. code =" + err.code + ", message =" + err.message); console.error("Failed to get value of 'startup'. code =" + err.code + ", message =" + err.message);
} }
``` ```
...@@ -1069,7 +1069,7 @@ Obtains all KV pairs from the cached **Preferences** instance. This API uses an ...@@ -1069,7 +1069,7 @@ Obtains all KV pairs from the cached **Preferences** instance. This API uses an
try { try {
preferences.getAll(function (err, value) { preferences.getAll(function (err, value) {
if (err) { if (err) {
console.info("Failed to obtain all KV pairs. code =" + err.code + ", message =" + err.message); console.error("Failed to get all key-values. code =" + err.code + ", message =" + err.message);
return; return;
} }
let allKeys = Object.keys(value); let allKeys = Object.keys(value);
...@@ -1077,7 +1077,7 @@ try { ...@@ -1077,7 +1077,7 @@ try {
console.info("getAll object = " + JSON.stringify(value)); console.info("getAll object = " + JSON.stringify(value));
}) })
} catch (err) { } catch (err) {
console.info("Failed to obtain all KV pairs. code =" + err.code + ", message =" + err.message); console.error("Failed to get all key-values. code =" + err.code + ", message =" + err.message);
} }
``` ```
...@@ -1106,10 +1106,10 @@ try { ...@@ -1106,10 +1106,10 @@ try {
console.info('getAll keys = ' + allKeys); console.info('getAll keys = ' + allKeys);
console.info("getAll object = " + JSON.stringify(value)); console.info("getAll object = " + JSON.stringify(value));
}).catch((err) => { }).catch((err) => {
console.info("Failed to obtain all KV pairs. code =" + err.code + ", message =" + err.message); console.error("Failed to get all key-values. code =" + err.code + ", message =" + err.message);
}) })
} catch (err) { } catch (err) {
console.info("Failed to obtain all KV pairs. code =" + err.code + ", message =" + err.message); console.error("Failed to get all key-values. code =" + err.code + ", message =" + err.message);
} }
``` ```
...@@ -1136,7 +1136,7 @@ try { ...@@ -1136,7 +1136,7 @@ try {
console.info('getAll keys = ' + allKeys); console.info('getAll keys = ' + allKeys);
console.info("getAll object = " + JSON.stringify(value)); console.info("getAll object = " + JSON.stringify(value));
} catch (err) { } catch (err) {
console.info("Failed to obtain all KV pairs. code =" + err.code + ", message =" + err.message); console.error("Failed to get all key-values. code =" + err.code + ", message =" + err.message);
} }
``` ```
...@@ -1162,13 +1162,13 @@ Writes data to the cached **Preferences** instance. This API uses an asynchronou ...@@ -1162,13 +1162,13 @@ Writes data to the cached **Preferences** instance. This API uses an asynchronou
try { try {
preferences.put('startup', 'auto', function (err) { preferences.put('startup', 'auto', function (err) {
if (err) { if (err) {
console.info("Failed to put the value of 'startup'. code =" + err.code + ", message =" + err.message); console.error("Failed to put value of 'startup'. code =" + err.code + ", message =" + err.message);
return; return;
} }
console.info("Successfully put the value of 'startup'."); console.info("Successfully put the value of 'startup'.");
}) })
} catch (err) { } catch (err) {
console.info("Failed to put the value of 'startup'. code =" + err.code + ", message =" + err.message); console.error("Failed to put value of 'startup'. code =" + err.code + ", message =" + err.message);
} }
``` ```
...@@ -1202,10 +1202,10 @@ try { ...@@ -1202,10 +1202,10 @@ try {
promise.then(() => { promise.then(() => {
console.info("Successfully put the value of 'startup'."); console.info("Successfully put the value of 'startup'.");
}).catch((err) => { }).catch((err) => {
console.info("Failed to put the value of 'startup'. code =" + err.code +", message =" + err.message); console.error("Failed to put value of 'startup'. code =" + err.code +", message =" + err.message);
}) })
} catch(err) { } catch(err) {
console.info("Failed to put the value of 'startup'. code =" + err.code +", message =" + err.message); console.error("Failed to put value of 'startup'. code =" + err.code +", message =" + err.message);
} }
``` ```
...@@ -1231,7 +1231,7 @@ Synchronously writes data to the cached **Preferences** instance. You can use [f ...@@ -1231,7 +1231,7 @@ Synchronously writes data to the cached **Preferences** instance. You can use [f
try { try {
preferences.putSync('startup', 'auto'); preferences.putSync('startup', 'auto');
} catch(err) { } catch(err) {
console.info("Failed to put the value of 'startup'. code =" + err.code +", message =" + err.message); console.error("Failed to put value of 'startup'. code =" + err.code +", message =" + err.message);
} }
``` ```
...@@ -1257,7 +1257,7 @@ Checks whether the cached **Preferences** instance contains the KV pair of the g ...@@ -1257,7 +1257,7 @@ Checks whether the cached **Preferences** instance contains the KV pair of the g
try { try {
preferences.has('startup', function (err, val) { preferences.has('startup', function (err, val) {
if (err) { if (err) {
console.info("Failed to check the key 'startup'. code =" + err.code + ", message =" + err.message); console.error("Failed to check the key 'startup'. code =" + err.code + ", message =" + err.message);
return; return;
} }
if (val) { if (val) {
...@@ -1267,7 +1267,7 @@ try { ...@@ -1267,7 +1267,7 @@ try {
} }
}) })
} catch (err) { } catch (err) {
console.info("Failed to check the key 'startup'. code =" + err.code + ", message =" + err.message); console.error("Failed to check the key 'startup'. code =" + err.code + ", message =" + err.message);
} }
``` ```
...@@ -1304,10 +1304,10 @@ try { ...@@ -1304,10 +1304,10 @@ try {
console.info("The key 'startup' is not contained."); console.info("The key 'startup' is not contained.");
} }
}).catch((err) => { }).catch((err) => {
console.info("Failed to check the key 'startup'. code =" + err.code + ", message =" + err.message); console.error("Failed to check the key 'startup'. code =" + err.code + ", message =" + err.message);
}) })
} catch(err) { } catch(err) {
console.info("Failed to check the key 'startup'. code =" + err.code + ", message =" + err.message); console.error("Failed to check the key 'startup'. code =" + err.code + ", message =" + err.message);
} }
``` ```
...@@ -1343,7 +1343,7 @@ try { ...@@ -1343,7 +1343,7 @@ try {
console.info("The key 'startup' is not contained."); console.info("The key 'startup' is not contained.");
} }
} catch(err) { } catch(err) {
console.info("Failed to check the key 'startup'. code =" + err.code + ", message =" + err.message); console.error("Failed to check the key 'startup'. code =" + err.code + ", message =" + err.message);
} }
``` ```
...@@ -1369,13 +1369,13 @@ Deletes a KV pair from the cached **Preferences** instance based on the specifie ...@@ -1369,13 +1369,13 @@ Deletes a KV pair from the cached **Preferences** instance based on the specifie
try { try {
preferences.delete('startup', function (err) { preferences.delete('startup', function (err) {
if (err) { if (err) {
console.info("Failed to delete the key 'startup'. code =" + err.code + ", message =" + err.message); console.error("Failed to delete the key 'startup'. code =" + err.code + ", message =" + err.message);
return; return;
} }
console.info("Deleted the key 'startup'."); console.info("Deleted the key 'startup'.");
}) })
} catch (err) { } catch (err) {
console.info("Failed to delete the key 'startup'. code =" + err.code + ", message =" + err.message); console.error("Failed to delete the key 'startup'. code =" + err.code + ", message =" + err.message);
} }
``` ```
...@@ -1405,13 +1405,13 @@ Deletes a KV pair from the cached **Preferences** instance based on the specifie ...@@ -1405,13 +1405,13 @@ Deletes a KV pair from the cached **Preferences** instance based on the specifie
```js ```js
try { try {
let promise = preferences.delete('startup'); let promise = preferences.delete('startup');
promise.then(() => { promise.then(() => {
console.info("Deleted the key 'startup'."); console.info("Deleted the key 'startup'.");
}).catch((err) => { }).catch((err) => {
console.info("Failed to delete the key 'startup'. code =" + err.code +", message =" + err.message); console.error("Failed to delete the key 'startup'. code =" + err.code +", message =" + err.message);
}) })
} catch(err) { } catch(err) {
console.info("Failed to delete the key 'startup'. code =" + err.code +", message =" + err.message); console.error("Failed to delete the key 'startup'. code =" + err.code +", message =" + err.message);
} }
``` ```
...@@ -1436,7 +1436,7 @@ Synchronously deletes a KV pair from the cached **Preferences** instance based o ...@@ -1436,7 +1436,7 @@ Synchronously deletes a KV pair from the cached **Preferences** instance based o
try { try {
preferences.deleteSync('startup'); preferences.deleteSync('startup');
} catch(err) { } catch(err) {
console.info("Failed to delete the key 'startup'. code =" + err.code +", message =" + err.message); console.error("Failed to delete the key 'startup'. code =" + err.code +", message =" + err.message);
} }
``` ```
...@@ -1461,13 +1461,13 @@ Flushes the data in the cached **Preferences** instance to the persistent file. ...@@ -1461,13 +1461,13 @@ Flushes the data in the cached **Preferences** instance to the persistent file.
try { try {
preferences.flush(function (err) { preferences.flush(function (err) {
if (err) { if (err) {
console.info("Failed to flush data. code =" + err.code + ", message =" + err.message); console.error("Failed to flush. code =" + err.code + ", message =" + err.message);
return; return;
} }
console.info("Successfully flushed data."); console.info("Successfully flushed data.");
}) })
} catch (err) { } catch (err) {
console.info("Failed to flush data. code =" + err.code + ", message =" + err.message); console.error("Failed to flush. code =" + err.code + ", message =" + err.message);
} }
``` ```
...@@ -1494,10 +1494,10 @@ try { ...@@ -1494,10 +1494,10 @@ try {
promise.then(() => { promise.then(() => {
console.info("Successfully flushed data."); console.info("Successfully flushed data.");
}).catch((err) => { }).catch((err) => {
console.info("Failed to flush data. code =" + err.code + ", message =" + err.message); console.error("Failed to flush. code =" + err.code + ", message =" + err.message);
}) })
} catch (err) { } catch (err) {
console.info("Failed to flush data. code =" + err.code + ", message =" + err.message); console.error("Failed to flush. code =" + err.code + ", message =" + err.message);
} }
``` ```
...@@ -1520,15 +1520,15 @@ Clears all data in the cached **Preferences** instance. This API uses an asynchr ...@@ -1520,15 +1520,15 @@ Clears all data in the cached **Preferences** instance. This API uses an asynchr
```js ```js
try { try {
preferences.clear(function (err) { preferences.clear(function (err) {
if (err) { if (err) {
console.info("Failed to clear data. code =" + err.code + ", message =" + err.message); console.error("Failed to clear. code =" + err.code + ", message =" + err.message);
return; return;
} }
console.info("Successfully cleared data."); console.info("Successfully cleared data.");
}) })
} catch (err) { } catch (err) {
console.info("Failed to clear data. code =" + err.code + ", message =" + err.message); console.error("Failed to clear. code =" + err.code + ", message =" + err.message);
} }
``` ```
...@@ -1552,13 +1552,13 @@ Clears all data in the cached **Preferences** instance. This API uses a promise ...@@ -1552,13 +1552,13 @@ Clears all data in the cached **Preferences** instance. This API uses a promise
```js ```js
try { try {
let promise = preferences.clear(); let promise = preferences.clear();
promise.then(() => { promise.then(() => {
console.info("Successfully cleared data."); console.info("Successfully cleared data.");
}).catch((err) => { }).catch((err) => {
console.info("Failed to clear data. code =" + err.code + ", message =" + err.message); console.error("Failed to clear. code =" + err.code + ", message =" + err.message);
}) })
} catch(err) { } catch(err) {
console.info("Failed to clear data. code =" + err.code + ", message =" + err.message); console.error("Failed to clear. code =" + err.code + ", message =" + err.message);
} }
``` ```
...@@ -1577,7 +1577,7 @@ Synchronously clears all data in the cached **Preferences** instance. You can us ...@@ -1577,7 +1577,7 @@ Synchronously clears all data in the cached **Preferences** instance. You can us
try { try {
preferences.clearSync(); preferences.clearSync();
} catch(err) { } catch(err) {
console.info("Failed to clear data. code =" + err.code + ", message =" + err.message); console.error("Failed to clear. code =" + err.code + ", message =" + err.message);
} }
``` ```
...@@ -1601,33 +1601,33 @@ Subscribes to data changes. A callback will be triggered to return the new value ...@@ -1601,33 +1601,33 @@ Subscribes to data changes. A callback will be triggered to return the new value
```js ```js
try { try {
data_preferences.getPreferences(this.context, 'mystore', function (err, preferences) { data_preferences.getPreferences(this.context, 'mystore', function (err, preferences) {
if (err) { if (err) {
console.info("Failed to obtain the preferences."); console.error("Failed to get preferences.");
return; return;
} }
let observer = function (key) { let observer = function (key) {
console.info("The key " + key + " changed."); console.info("The key " + key + " changed.");
} }
preferences.on('change', observer); preferences.on('change', observer);
preferences.put('startup', 'manual', function (err) { preferences.put('startup', 'manual', function (err) {
if (err) { if (err) {
console.info("Failed to put the value of 'startup'. Cause: " + err); console.error("Failed to put the value of 'startup'. Cause: " + err);
return; return;
} }
console.info("Successfully put the value of 'startup'."); console.info("Successfully put the value of 'startup'.");
preferences.flush(function (err) { preferences.flush(function (err) {
if (err) { if (err) {
console.info("Failed to flush data. Cause: " + err); console.error("Failed to flush. Cause: " + err);
return; return;
} }
console.info("Successfully flushed data."); console.info("Successfully flushed data.");
}) })
}) })
}) })
} catch (err) { } catch (err) {
console.info("Failed to flush data. code =" + err.code + ", message =" + err.message); console.error("Failed to flush. code =" + err.code + ", message =" + err.message);
} }
``` ```
...@@ -1660,86 +1660,85 @@ For details about the error codes, see [User Preference Error Codes](../errorcod ...@@ -1660,86 +1660,85 @@ For details about the error codes, see [User Preference Error Codes](../errorcod
```js ```js
try { try {
data_preferences.getPreferences(this.context, {name: 'mystore', dataGroupId:'myId'}, function (err, preferences) { data_preferences.getPreferences(this.context, { name: 'mystore', dataGroupId:'myId' }, function (err, preferences) {
if (err) { if (err) {
console.info("Failed to obtain the preferences."); console.error("Failed to get preferences.");
return; return;
} }
let observer = function (key) { let observer = function (key) {
console.info("The key " + key + " changed."); console.info("The key " + key + " changed.");
} }
preferences.on('multiProcessChange', observer); preferences.on('multiProcessChange', observer);
preferences.put('startup', 'manual', function (err) { preferences.put('startup', 'manual', function (err) {
if (err) { if (err) {
console.info("Failed to put the value of 'startup'. Cause: " + err); console.error("Failed to put the value of 'startup'. Cause: " + err);
return; return;
} }
console.info("Successfully put the value of 'startup'."); console.info("Successfully put the value of 'startup'.");
preferences.flush(function (err) { preferences.flush(function (err) {
if (err) { if (err) {
console.info("Failed to flush data. Cause: " + err); console.error("Failed to flush. Cause: " + err);
return; return;
} }
console.info("Successfully flushed data."); console.info("Successfully flushed data.");
}) })
}) })
}) })
} catch (err) { } catch (err) {
console.info("Failed to flush data. code =" + err.code + ", message =" + err.message); console.error("Failed to flush. code =" + err.code + ", message =" + err.message);
} }
``` ```
**Example 2** **Example 2**
```js ```js
let preferences = null;
try { try {
data_preferences.getPreferences(this.context, { name: 'mystore' }, function (err, val) { data_preferences.getPreferences(this.context, { name: 'mystore' }, function (err, val) {
if (err) { if (err) {
console.info("Failed to obtain the preferences."); console.error("Failed to get preferences.");
return; return;
} }
preferences = val; preferences = val;
let observer = function (key) { let observer = function (key) {
console.info("The key " + key + " changed."); console.info("The key " + key + " changed.");
try { try {
data_preferences.removePreferencesFromCache(context, { name: 'mystore' }, function (err) { data_preferences.removePreferencesFromCache(this.context, { name: 'mystore' }, function (err) {
if (err) { if (err) {
console.info("Failed to remove preferences. code =" + err.code + ", message =" + err.message); console.error("Failed to remove preferences. code =" + err.code + ", message =" + err.message);
return; return;
} }
preferences = null; preferences = null;
console.info("Removed the preferences successfully."); console.info("Succeeded in removing preferences.");
}) })
} catch (err) { } catch (err) {
console.info("Failed to remove preferences. code =" + err.code + ", message =" + err.message); console.error("Failed to remove preferences. code =" + err.code + ", message =" + err.message);
} }
try { try {
data_preferences.getPreferences(context, { name: 'mystore' }, function (err, val) { data_preferences.getPreferences(this.context, { name: 'mystore' }, function (err, val) {
if (err) { if (err) {
console.info("Failed to obtain the preferences. code =" + err.code + ", message =" + err.message); console.error("Failed to get preferences. code =" + err.code + ", message =" + err.message);
return; return;
} }
preferences = val; preferences = val;
console.info("Obtained the preferences successfully."); console.info("Succeeded in getting preferences.");
}) })
} catch (err) { } catch (err) {
console.info("Failed to obtain the preferences. code =" + err.code + ", message =" + err.message); console.error("Failed to get preferences. code =" + err.code + ", message =" + err.message);
} }
} }
preferences.on('multiProcessChange', observer); preferences.on('multiProcessChange', observer);
preferences.put('startup', 'manual', function (err) { preferences.put('startup', 'manual', function (err) {
if (err) { if (err) {
console.info("Failed to put the value of 'startup'. Cause: " + err); console.error("Failed to put the value of 'startup'. Cause: " + err);
return; return;
} }
console.info("Successfully put the value of 'startup'."); console.info("Successfully put the value of 'startup'.");
preferences.flush(function (err) { preferences.flush(function (err) {
if (err) { if (err) {
console.info("Failed to flush data. Cause: " + err); console.error("Failed to flush. Cause: " + err);
return; return;
} }
console.info("Successfully flushed data."); console.info("Successfully flushed data.");
...@@ -1747,7 +1746,7 @@ try { ...@@ -1747,7 +1746,7 @@ try {
}) })
}) })
} catch (err) { } catch (err) {
console.info("Failed to flush data. code =" + err.code + ", message =" + err.message); console.error("Failed to flush. code =" + err.code + ", message =" + err.message);
} }
``` ```
...@@ -1772,7 +1771,7 @@ Unsubscribes from data changes. ...@@ -1772,7 +1771,7 @@ Unsubscribes from data changes.
try { try {
data_preferences.getPreferences(this.context, 'mystore', function (err, preferences) { data_preferences.getPreferences(this.context, 'mystore', function (err, preferences) {
if (err) { if (err) {
console.info("Failed to obtain the preferences."); console.error("Failed to get preferences.");
return; return;
} }
let observer = function (key) { let observer = function (key) {
...@@ -1781,14 +1780,14 @@ try { ...@@ -1781,14 +1780,14 @@ try {
preferences.on('change', observer); preferences.on('change', observer);
preferences.put('startup', 'auto', function (err) { preferences.put('startup', 'auto', function (err) {
if (err) { if (err) {
console.info("Failed to put the value of 'startup'. Cause: " + err); console.error("Failed to put the value of 'startup'. Cause: " + err);
return; return;
} }
console.info("Successfully put the value of 'startup'."); console.info("Successfully put the value of 'startup'.");
preferences.flush(function (err) { preferences.flush(function (err) {
if (err) { if (err) {
console.info("Failed to flush data. Cause: " + err); console.error("Failed to flush. Cause: " + err);
return; return;
} }
console.info("Successfully flushed data."); console.info("Successfully flushed data.");
...@@ -1797,7 +1796,7 @@ try { ...@@ -1797,7 +1796,7 @@ try {
}) })
}) })
} catch (err) { } catch (err) {
console.info("Failed to flush data. code =" + err.code + ", message =" + err.message); console.error("Failed to flush. code =" + err.code + ", message =" + err.message);
} }
``` ```
...@@ -1820,9 +1819,9 @@ Unsubscribes from inter-process data changes. ...@@ -1820,9 +1819,9 @@ Unsubscribes from inter-process data changes.
```js ```js
try { try {
data_preferences.getPreferences(this.context, {name: 'mystore', dataGroupId:'myId'}, function (err, preferences) { data_preferences.getPreferences(this.context, { name: 'mystore', dataGroupId:'myId' }, function (err, preferences) {
if (err) { if (err) {
console.info("Failed to obtain the preferences."); console.error("Failed to get preferences.");
return; return;
} }
let observer = function (key) { let observer = function (key) {
...@@ -1831,14 +1830,14 @@ try { ...@@ -1831,14 +1830,14 @@ try {
preferences.on('multiProcessChange', observer); preferences.on('multiProcessChange', observer);
preferences.put('startup', 'auto', function (err) { preferences.put('startup', 'auto', function (err) {
if (err) { if (err) {
console.info("Failed to put the value of 'startup'. Cause: " + err); console.error("Failed to put the value of 'startup'. Cause: " + err);
return; return;
} }
console.info("Successfully put the value of 'startup'."); console.info("Successfully put the value of 'startup'.");
preferences.flush(function (err) { preferences.flush(function (err) {
if (err) { if (err) {
console.info("Failed to flush data. Cause: " + err); console.error("Failed to flush. Cause: " + err);
return; return;
} }
console.info("Successfully flushed data."); console.info("Successfully flushed data.");
...@@ -1847,7 +1846,7 @@ try { ...@@ -1847,7 +1846,7 @@ try {
}) })
}) })
} catch (err) { } catch (err) {
console.info("Failed to flush data. code =" + err.code + ", message =" + err.message); console.error("Failed to flush. code =" + err.code + ", message =" + err.message);
} }
``` ```
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