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“cf1254df23074dc63732d70a88d7477aa2700763”上不存在“doc/git@gitcode.net:s920243400/PaddleDetection.git”
提交 2d03b32f 编写于 作者: A Annie_wang
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Signed-off-by: NAnnie_wang <annie.wangli@huawei.com>
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en/application-dev/reference/apis/js-apis-application-dataShareExtensionAbility.md
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# @ohos.application.DataShareExtensionAbility (DataShare Extension Ability)
The **DataShareExtensionAbility** module provides data share services based on the Extension ability.
The **DataShareExtensionAbility** module provides data share services based on the ExtensionAbility.
>**NOTE**
>
......@@ -14,7 +14,7 @@ The **DataShareExtensionAbility** module provides data share services based on t
## Modules to Import
```ts
import DataShareExtensionAbility from '@ohos.application.DataShareExtensionAbility'
import DataShareExtensionAbility from '@ohos.application.DataShareExtensionAbility';
```
## URI Naming Rule
......@@ -65,11 +65,11 @@ Called by the server to initialize service logic when the DataShare client conne
```ts
import rdb from '@ohos.data.relationalStore';
let DB_NAME = "DB00.db";
let TBL_NAME = "TBL00";
let DDL_TBL_CREATE = "CREATE TABLE IF NOT EXISTS "
let DB_NAME = 'DB00.db';
let TBL_NAME = 'TBL00';
let DDL_TBL_CREATE = 'CREATE TABLE IF NOT EXISTS '
+ TBL_NAME
+ " (id INTEGER PRIMARY KEY AUTOINCREMENT, name TEXT, age INTEGER, phoneNumber DOUBLE, isStudent BOOLEAN, Binary BINARY)";
+ ' (id INTEGER PRIMARY KEY AUTOINCREMENT, name TEXT, age INTEGER, phoneNumber DOUBLE, isStudent BOOLEAN, Binary BINARY)';
let rdbStore;
export default class DataShareExtAbility extends DataShareExtensionAbility {
......@@ -112,22 +112,22 @@ Inserts data into the database. This API can be overridden as required.
```ts
import rdb from '@ohos.data.relationalStore';
let DB_NAME = "DB00.db";
let TBL_NAME = "TBL00";
let DDL_TBL_CREATE = "CREATE TABLE IF NOT EXISTS "
let DB_NAME = 'DB00.db';
let TBL_NAME = 'TBL00';
let DDL_TBL_CREATE = 'CREATE TABLE IF NOT EXISTS '
+ TBL_NAME
+ " (id INTEGER PRIMARY KEY AUTOINCREMENT, name TEXT, age INTEGER, phoneNumber DOUBLE, isStudent BOOLEAN, Binary BINARY)";
+ ' (id INTEGER PRIMARY KEY AUTOINCREMENT, name TEXT, age INTEGER, phoneNumber DOUBLE, isStudent BOOLEAN, Binary BINARY)';
let rdbStore;
export default class DataShareExtAbility extends DataShareExtensionAbility {
insert(uri, valueBucket, callback) {
if (valueBucket == null) {
if (valueBucket === null) {
console.info('invalid valueBuckets');
return;
}
rdbStore.insert(TBL_NAME, valueBucket, function (err, ret) {
console.info('callback ret:' + ret);
if (callback != undefined) {
if (callback !== undefined) {
callback(err, ret);
}
});
......@@ -157,20 +157,20 @@ Updates data in the database. This API can be overridden as required.
```ts
import rdb from '@ohos.data.relationalStore';
let DB_NAME = "DB00.db";
let TBL_NAME = "TBL00";
let DDL_TBL_CREATE = "CREATE TABLE IF NOT EXISTS "
let DB_NAME = 'DB00.db';
let TBL_NAME = 'TBL00';
let DDL_TBL_CREATE = 'CREATE TABLE IF NOT EXISTS '
+ TBL_NAME
+ " (id INTEGER PRIMARY KEY AUTOINCREMENT, name TEXT, age INTEGER, phoneNumber DOUBLE, isStudent BOOLEAN, Binary BINARY)";
+ ' (id INTEGER PRIMARY KEY AUTOINCREMENT, name TEXT, age INTEGER, phoneNumber DOUBLE, isStudent BOOLEAN, Binary BINARY)';
let rdbStore;
export default class DataShareExtAbility extends DataShareExtensionAbility {
update(uri, predicates, valueBucket, callback) {
if (predicates == null || predicates == undefined) {
if (predicates === null || predicates === undefined) {
return;
}
rdbStore.update(TBL_NAME, valueBucket, predicates, function (err, ret) {
if (callback != undefined) {
if (callback !== undefined) {
callback(err, ret);
}
});
......@@ -199,20 +199,20 @@ Deletes data from the database. This API can be overridden as required.
```ts
import rdb from '@ohos.data.relationalStore';
let DB_NAME = "DB00.db";
let TBL_NAME = "TBL00";
let DDL_TBL_CREATE = "CREATE TABLE IF NOT EXISTS "
let DB_NAME = 'DB00.db';
let TBL_NAME = 'TBL00';
let DDL_TBL_CREATE = 'CREATE TABLE IF NOT EXISTS '
+ TBL_NAME
+ " (id INTEGER PRIMARY KEY AUTOINCREMENT, name TEXT, age INTEGER, phoneNumber DOUBLE, isStudent BOOLEAN, Binary BINARY)";
+ ' (id INTEGER PRIMARY KEY AUTOINCREMENT, name TEXT, age INTEGER, phoneNumber DOUBLE, isStudent BOOLEAN, Binary BINARY)';
let rdbStore;
export default class DataShareExtAbility extends DataShareExtensionAbility {
delete(uri, predicates, callback) {
if (predicates == null || predicates == undefined) {
if (predicates === null || predicates === undefined) {
return;
}
rdbStore.delete(TBL_NAME, predicates, function (err, ret) {
if (callback != undefined) {
if (callback !== undefined) {
callback(err, ret);
}
});
......@@ -235,30 +235,30 @@ Queries data from the database. This API can be overridden as required.
| uri | string | Yes | URI of the data to query.|
| predicates | [dataSharePredicates.DataSharePredicates](js-apis-data-dataSharePredicates.md#datasharepredicates) | Yes | Filter criteria for querying data.|
| columns | Array&lt;string&gt; | Yes| Columns to query. If this parameter is empty, all columns will be queried.|
| callback | AsyncCallback&lt;Object&gt; | Yes| Callback invoked to return the result set.|
| callback | AsyncCallback&lt;Object&gt; | Yes| Callback invoked to return the result set obtained.|
**Example**
```ts
import rdb from '@ohos.data.relationalStore';
let DB_NAME = "DB00.db";
let TBL_NAME = "TBL00";
let DDL_TBL_CREATE = "CREATE TABLE IF NOT EXISTS "
let DB_NAME = 'DB00.db';
let TBL_NAME = 'TBL00';
let DDL_TBL_CREATE = 'CREATE TABLE IF NOT EXISTS '
+ TBL_NAME
+ " (id INTEGER PRIMARY KEY AUTOINCREMENT, name TEXT, age INTEGER, phoneNumber DOUBLE, isStudent BOOLEAN, Binary BINARY)";
+ ' (id INTEGER PRIMARY KEY AUTOINCREMENT, name TEXT, age INTEGER, phoneNumber DOUBLE, isStudent BOOLEAN, Binary BINARY)';
let rdbStore;
export default class DataShareExtAbility extends DataShareExtensionAbility {
query(uri, predicates, columns, callback) {
if (predicates == null || predicates == undefined) {
if (predicates === null || predicates === undefined) {
return;
}
rdbStore.query(TBL_NAME, predicates, columns, function (err, resultSet) {
if (resultSet != undefined) {
if (resultSet !== undefined) {
console.info('resultSet.rowCount: ' + resultSet.rowCount);
}
if (callback != undefined) {
if (callback !== undefined) {
callback(err, resultSet);
}
});
......@@ -287,23 +287,23 @@ Batch inserts data into the database. This API is called by the server and can b
```ts
import rdb from '@ohos.data.relationalStore';
let DB_NAME = "DB00.db";
let TBL_NAME = "TBL00";
let DDL_TBL_CREATE = "CREATE TABLE IF NOT EXISTS "
let DB_NAME = 'DB00.db';
let TBL_NAME = 'TBL00';
let DDL_TBL_CREATE = 'CREATE TABLE IF NOT EXISTS '
+ TBL_NAME
+ " (id INTEGER PRIMARY KEY AUTOINCREMENT, name TEXT, age INTEGER, phoneNumber DOUBLE, isStudent BOOLEAN, Binary BINARY)";
+ ' (id INTEGER PRIMARY KEY AUTOINCREMENT, name TEXT, age INTEGER, phoneNumber DOUBLE, isStudent BOOLEAN, Binary BINARY)';
let rdbStore;
export default class DataShareExtAbility extends DataShareExtensionAbility {
batchInsert(uri, valueBuckets, callback) {
if (valueBuckets == null || valueBuckets.length == undefined) {
if (valueBuckets === null || valueBuckets.length === undefined) {
console.info('invalid valueBuckets');
return;
}
let resultNum = valueBuckets.length
let resultNum = valueBuckets.length;
valueBuckets.forEach(vb => {
rdbStore.insert(TBL_NAME, vb, function (err, ret) {
if (callback != undefined) {
if (callback !== undefined) {
callback(err, resultNum);
}
});
......@@ -332,8 +332,8 @@ Normalizes a URI. This API can be overridden as required.
```ts
export default class DataShareExtAbility extends DataShareExtensionAbility {
normalizeUri(uri, callback) {
let err = {"code":0};
let ret = "normalize+" + uri;
let err = {'code':0};
let ret = 'normalize+' + uri;
callback(err, ret);
}
};
......@@ -359,8 +359,8 @@ Denormalizes a URI. This API can be overridden as required.
```ts
export default class DataShareExtAbility extends DataShareExtensionAbility {
denormalizeUri(uri, callback) {
let err = {"code":0};
let ret = "denormalize+" + uri;
let err = {'code':0};
let ret = 'denormalize+' + uri;
callback(err, ret);
}
};
......
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