QueryConstraint class
AQueryConstraint is used to narrow the set of documents returned by a Database query.QueryConstraints are created by invokingendAt(),endBefore(),startAt(),startAfter(),limitToFirst(),limitToLast(),orderByChild(),orderByChild(),orderByKey() ,orderByPriority() ,orderByValue() orequalTo() and can then be passed toquery() to create a new query instance that also contains thisQueryConstraint.
Signature:
exportdeclareabstractclassQueryConstraintProperties
| Property | Modifiers | Type | Description |
|---|---|---|---|
| type | QueryConstraintType | The type of this query constraints |
QueryConstraint.type
The type of this query constraints
Signature:
abstractreadonlytype:QueryConstraintType;Except as otherwise noted, the content of this page is licensed under theCreative Commons Attribution 4.0 License, and code samples are licensed under theApache 2.0 License. For details, see theGoogle Developers Site Policies. Java is a registered trademark of Oracle and/or its affiliates.
Last updated 2024-01-19 UTC.