harmony 鸿蒙DataAbilityResult
DataAbilityResult
定义DataAbility数据操作结果,通过executeBatch操作数据库时,操作结果使用DataAbilityResult对象返回。
说明:
本接口从API version 7开始支持。后续版本的新增接口,采用上角标单独标记接口的起始版本。 本接口仅可在FA模型下使用
导入模块
import ability from '@ohos.ability.ability';
属性
系统能力:以下各项对应的系统能力均为SystemCapability.Ability.AbilityRuntime.FAModel
名称 | 类型 | 必填 | 说明 |
---|---|---|---|
uri? | string | 否 | 指示待处理的DataAbility。例:’dataability:///com.example.xxx.xxxx’。 |
count? | number | 否 | 指示受操作影响的数据数量。 |
示例:
import ability from '@ohos.ability.ability';
import featureAbility from '@ohos.ability.featureAbility';
import rdb from '@ohos.data.rdb';
// 批量执行数据库操作
function executeBatchOperation() {
let dataAbilityUri = ('dataability:///com.example.myapplication.TestDataAbility');
let DAHelper: ability.DataAbilityHelper;
DAHelper = featureAbility.acquireDataAbilityHelper(dataAbilityUri);
let valueBucket: rdb.ValuesBucket = {
'name': 'DataAbilityHelperTest',
'age': 24,
'salary': 2024.20,
};
let predicateBackReferences = new Map<number, number>()
predicateBackReferences.set(1, 1)
let operations: Array<ability.DataAbilityOperation> = [
{
uri: dataAbilityUri,
type: featureAbility.DataAbilityOperationType.TYPE_INSERT,
valuesBucket: valueBucket,
expectedCount: 1,
predicatesBackReferences: predicateBackReferences,
interrupted: true,
},
{
uri: dataAbilityUri,
type: featureAbility.DataAbilityOperationType.TYPE_INSERT,
valuesBucket: valueBucket,
expectedCount: 1,
predicatesBackReferences: predicateBackReferences,
interrupted: true,
}
];
try {
DAHelper.executeBatch(dataAbilityUri, operations).then((data) => {
for (let i = 0; i < data.length; i++) {
let dataAbilityResult: ability.DataAbilityResult = data[i];
console.log('dataAbilityResult.uri: ${dataAbilityResult.uri}');
console.log('dataAbilityResult.count: ${dataAbilityResult.count}');
}
}).catch((err: BusinessError) => {
console.error(`executeBatch error: ${JSON.stringify(err)}`);
});
} catch (err) {
console.error(`executeBatch error: ${JSON.stringify(err)}`);
}
}
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