Struct wasccgraph_actor::graph::GraphHostBinding

pub struct GraphHostBinding { /* fields omitted */ }

Implementations

impl GraphHostBinding

pub fn query<T: FromTable>(&self, query: &str) -> Result<T, Box<dyn Error>>

Executes a query against the host graph. For this provider, we assume the query is a Cypher query but it could be Gremlin or GraphQL, etc, depending on the capability provider satisfying wascc:graphdb. This can be used to perform mutations if you also return data from the mutation query

pub fn query_with_statistics<T: FromTable>(
    &self,
    query: &str
) -> Result<(T, Statistics), Box<dyn Error>>

The same as query, but returns statistics from the query like execution time and nodes/relations affected, etc.

pub fn mutate(&mut self, query: &str) -> Result<(), Box<dyn Error>>

Executes the given query without returning any values

If you want to mutate the graph and retrieve values using one query, use query instead.

pub fn mutate_with_statistics(
    &mut self,
    query: &str
) -> Result<Statistics, Box<dyn Error>>

Same as mutate, but returns statistics about the query.

pub fn delete(self) -> Result<(), Box<dyn Error>>

Deletes the entire graph from the database.

This is a potentially very destructive function. Use with care.

pub fn name(&self) -> &str

Returns the name of the graph