Struct googapis::google::datastore::v1beta3::Key [−][src]
pub struct Key {
pub partition_id: Option<PartitionId>,
pub path: Vec<PathElement>,
}
Expand description
A unique identifier for an entity. If a key’s partition ID or any of its path kinds or names are reserved/read-only, the key is reserved/read-only. A reserved/read-only key is forbidden in certain documented contexts.
Fields
partition_id: Option<PartitionId>
Entities are partitioned into subsets, currently identified by a project ID and namespace ID. Queries are scoped to a single partition.
path: Vec<PathElement>
The entity path. An entity path consists of one or more elements composed of a kind and a string or numerical identifier, which identify entities. The first element identifies a root entity, the second element identifies a child of the root entity, the third element identifies a child of the second entity, and so forth. The entities identified by all prefixes of the path are called the element’s ancestors.
An entity path is always fully complete: all of the entity’s ancestors
are required to be in the path along with the entity identifier itself.
The only exception is that in some documented cases, the identifier in the
last path element (for the entity) itself may be omitted. For example,
the last path element of the key of Mutation.insert
may have no
identifier.
A path can never be empty, and a path can have at most 100 elements.
Trait Implementations
fn merge_field<B>(
&mut self,
tag: u32,
wire_type: WireType,
buf: &mut B,
ctx: DecodeContext
) -> Result<(), DecodeError> where
B: Buf,
Returns the encoded length of the message without a length delimiter.
Encodes the message to a buffer. Read more
Encodes the message to a newly allocated buffer.
Encodes the message with a length-delimiter to a buffer. Read more
Encodes the message with a length-delimiter to a newly allocated buffer.
Decodes an instance of the message from a buffer. Read more
fn decode_length_delimited<B>(buf: B) -> Result<Self, DecodeError> where
Self: Default,
B: Buf,
fn decode_length_delimited<B>(buf: B) -> Result<Self, DecodeError> where
Self: Default,
B: Buf,
Decodes a length-delimited instance of the message from the buffer.
Decodes an instance of the message from a buffer, and merges it into self
. Read more
Decodes a length-delimited instance of the message from buffer, and
merges it into self
. Read more
Auto Trait Implementations
impl RefUnwindSafe for Key
impl UnwindSafe for Key
Blanket Implementations
Mutably borrows from an owned value. Read more
Wrap the input message T
in a tonic::Request
pub fn vzip(self) -> V
Attaches the provided Subscriber
to this type, returning a
WithDispatch
wrapper. Read more
Attaches the current default Subscriber
to this type, returning a
WithDispatch
wrapper. Read more