DataAbilityResult

The DataAbilityResult module defines the operation result on DataAbilities. When you call executeBatch to operate the database, the operation result is returned through the DataAbilityResult object.

NOTE

The initial APIs of this module are supported since API version 7. Newly added APIs will be marked with a superscript to indicate their earliest API version.

The APIs of this module can be used only in the FA model.

Modules to Import

import ability from '@ohos.ability.ability';

Attributes

System capability: SystemCapability.Ability.AbilityRuntime.FAModel

Name	Type	Read Only	Optional	Description
uri	string	No	Yes	URI of the DataAbility. Example: 'dataability:///com.example.xxx.xxxx'.
count	number	No	Yes	Number of rows affected by the operation.

Example

import ability from '@ohos.ability.ability';
import featureAbility from '@ohos.ability.featureAbility';
import rdb from '@ohos.data.rdb';
import { BusinessError } from '@ohos.base';

// Perform database operations in batches.
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 as BusinessError)}`);
    }
}