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1
2/*
3 * Copyright (c) 2025 Huawei Device Co., Ltd.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *     http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17import { ValueType } from "@ohos.data.ValuesBucket"
18
19export default namespace dataSharePredicates{
20
21class Cleaner {
22    static callback(cleaner: Cleaner): void {
23        console.println("enter Cleaner.callback");
24        cleaner.clean()
25    }
26
27    constructor(targetPtr: long) {
28        this.targetPtr = targetPtr
29    }
30
31    native clean(): void
32
33    private targetPtr: long = 0
34}
35
36class FinalizationAgent<T extends Object> {
37    constructor(obj: T, ptr: long) {
38        this.register(obj, ptr);
39    }
40
41    register(obj: T, ptr: long): void {
42        this.unregisterToken = {};
43        this.cleaner = new Cleaner(ptr);
44        finalizer.register(obj, this.cleaner!, this.unregisterToken);
45    }
46
47    unregister(): void {
48        finalizer.unregister(this.unregisterToken);
49    }
50
51    private cleaner: Cleaner | null = null;
52    private unregisterToken: object;
53}
54
55let finalizer = new FinalizationRegistry<Cleaner>(Cleaner.callback)
56
57export class DataSharePredicates{
58    static { loadLibrary("datasharepredicates_ani") }
59    private nativePtr:long = 0;
60    private fzAgent: FinalizationAgent<DataSharePredicates>;
61
62    constructor() {
63        console.log("enter constructor")
64        if (this.nativePtr == 0) {
65            console.log("start create")
66            this.nativePtr = DataSharePredicates.create();
67            console.log("stop create")
68        }
69        this.fzAgent = new FinalizationAgent<DataSharePredicates>(this, this.nativePtr);
70    }
71
72    unregisterCleaner(): void {
73        this.fzAgent.unregister();
74    }
75
76    getNativePtr():long {
77        return this.nativePtr;
78    }
79    native static create(): long;
80    native equalTo(field: string, value: ValueType):DataSharePredicates;
81    native notEqualTo(field: string, value: ValueType):DataSharePredicates;
82    native orderByDesc(field: string):DataSharePredicates;
83    native orderByAsc(field: string):DataSharePredicates;
84    native and():DataSharePredicates;
85    native limit(total: number, offset: number):DataSharePredicates;
86    native lessThan(field: string, value: ValueType): DataSharePredicates;
87    native like(field: string, value: string): DataSharePredicates;
88    native endWrap(): DataSharePredicates;
89    native greaterThanOrEqualTo(field: string, value: ValueType): DataSharePredicates;
90    native contains(field: string, value: string): DataSharePredicates;
91    native or(): DataSharePredicates;
92    native beginWrap(): DataSharePredicates;
93    native greaterThan(field: string, value: ValueType): DataSharePredicates;
94    native groupBy(fields:Array<string>): DataSharePredicates;
95    native in(field: string, value: Array<ValueType>): DataSharePredicates;
96    native notIn(field: string, value: Array<ValueType>): DataSharePredicates;
97}
98}
99