Crate grafeo_engine 

grafeo-engine

The engine behind Grafeo. You’ll find everything here for creating databases, running queries, and managing transactions.

Most users should start with the main grafeo crate, which re-exports the key types. If you’re here directly, GrafeoDB is your entry point.

Modules

• database - Create and manage databases with GrafeoDB
• session - Lightweight handles for concurrent access
• config - Tune memory, threads, and durability settings
• transaction - MVCC transaction management (snapshot isolation)
• query - The full query pipeline: parsing, planning, optimization, execution
• catalog - Schema metadata: labels, property keys, indexes
• admin - Admin API types for inspection, backup, and maintenance

Re-exports

pub use admin::AdminService;

pub use admin::CompactionStats;

pub use admin::DatabaseInfo;

pub use admin::DatabaseMode;

pub use admin::DatabaseStats;

pub use admin::DumpFormat;

pub use admin::DumpMetadata;

pub use admin::IndexInfo;

pub use admin::LpgSchemaInfo;

pub use admin::RdfSchemaInfo;

pub use admin::SchemaInfo;

pub use admin::ValidationError;

pub use admin::ValidationResult;

pub use admin::ValidationWarning;

pub use admin::WalStatus;

pub use auth::Grant;

pub use auth::Identity;

pub use auth::Role;

pub use auth::StatementKind;

pub use catalog::Catalog;

pub use catalog::CatalogError;

pub use catalog::IndexDefinition;

pub use catalog::IndexType;

pub use config::AccessMode;

pub use config::Config;

pub use config::ConfigError;

pub use config::DurabilityMode;

pub use config::GraphModel;

pub use database::GrafeoDB;

pub use memory_usage::MemoryUsage;

pub use query::executor::stream::OwnedResultStream;

pub use query::executor::stream::OwnedRowIterator;

pub use query::executor::stream::ResultStream;

pub use query::executor::stream::RowIterator;

pub use session::Session;

pub use transaction::CommitInfo;

pub use transaction::PreparedCommit;

Modules

admin

Admin API types for database inspection, backup, and maintenance.

auth

Role-based access control for Grafeo sessions.

catalog

Schema metadata - what labels, properties, and indexes exist.

config

Database configuration.

database

The main database struct and operations.

execution

Engine-level execution utilities.

export

Graph export serializers (GEXF, GraphML).

memory_usage

Hierarchical memory usage breakdown for the database.

query

The complete query processing pipeline.

session

Lightweight handles for database interaction.

transaction

Transaction management with MVCC and configurable isolation levels.

Structs

ProjectionSpec

Defines which nodes and edges are included in a projection.

Constants

VERSION

The version of the grafeo-engine crate (from Cargo.toml).

Traits

GraphStore

Read-only graph operations used by the query engine.

GraphStoreMut

Write operations for graph mutation.