37 lines
1003 B
TypeScript
37 lines
1003 B
TypeScript
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// 定义抽象基类
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import Realm from 'realm'
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export abstract class BaseService {
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protected realm: Realm | null = null
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// 抽象类的构造函数应该是protected，以防止外部直接实例化
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protected constructor() {
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// 构造函数逻辑，使用someValue进行初始化
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}
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// 定义抽象方法，子类必须实现，打开数据库连接
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abstract open(dbPath: string): void
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// 关闭数据库连接
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close(): void {
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// 关闭数据库的连接，防止内存溢出
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// 实现关闭数据库连接的逻辑
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if (this.realm != null) {
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console.log('Closing database connection')
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this.realm.close()
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this.realm = null // 清理引用，确保垃圾回收
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}
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}
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transaction(func: () => unknown): void {
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if (this.realm != null) {
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// 判断当前的relam是不是在一个事务中
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if (this.realm.isInTransaction) {
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func()
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} else {
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this.realm.write(() => {
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func()
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})
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}
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}
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}
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}
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