程序包 ohos.data.dataability

Provides predicates to set query conditions for database or non-database such as XML file in cross-device or cross-scenario data transmission.

This package provides DataAbilityPredicates to set the query conditions for cross-device or cross-process scenarios, such as DataAbilityPredicates.equalTo(java.lang.String, byte), DataAbilityPredicates.greaterThan(java.lang.String, int) or DataAbilityPredicates.lessThan(java.lang.String, int). This package also provides util class including methods for converting between DataAbilityPredicates and RdbPredicates or OrmPredicates. The latter two predicates provide conditions for operations on local databases.

从以下版本开始:

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类概要

类	说明
DataAbilityPredicates	Provides predicates for implementing diverse query methods.
DataAbilityUtils	A utility class that provides static methods for database operations.