expr
ReQL command: expr
Command syntax
r.expr(value) → value
Description
Construct a ReQL JSON object from a native object.
The native object can be any Java primitive type, as well as Array, List, Map, LocalDateTime, ZonedDateTime, OffsetDateTime, and POJOs (“plain old Java objects”) whose classes are public and whose numeric properties are Long
instead of Integer
.
If the native object is of type bytes[]
, then expr
will return a binary object. See binary for more information.
Example: Objects wrapped with expr
can then be manipulated by ReQL API functions.
import com.rethinkdb.model.MapObject; // Create object { "a": "b" } MapObject newData = r.hashMap("a", "b"); // merge with { "b": [1, 2, 3] } r.expr(newData).merge(r.hashMap("b", r.array(1, 2, 3))).run(conn);
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Licensed under the Creative Commons Attribution-ShareAlike 3.0 Unported License.
https://rethinkdb.com/api/java/expr/