SessionTransaction

llkv_transaction::context

Struct SessionTransaction 

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pub struct SessionTransaction<BaseCtx, StagingCtx>
where
    BaseCtx: TransactionContext + 'static,
    StagingCtx: TransactionContext + 'static,
{ /* private fields */ }
Expand description

Transaction state for the runtime context.

This struct manages the lifecycle of a single transaction, tracking:

  • Operations to replay on commit
  • Tables created/dropped/accessed within the transaction
  • Foreign key constraints for validation
  • Transaction isolation via MVCC snapshots

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impl<BaseCtx, StagingCtx> SessionTransaction<BaseCtx, StagingCtx>
where BaseCtx: TransactionContext + 'static, StagingCtx: TransactionContext + 'static,

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pub fn new( base_context: Arc<BaseCtx>, staging: Arc<StagingCtx>, txn_manager: Arc<TxnIdManager>, ) -> Self

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pub fn execute_select( &mut self, plan: SelectPlan, ) -> LlkvResult<SelectExecution<StagingCtx::Pager>>

Execute a SELECT query within transaction isolation. For tables created in this transaction: read from staging. For existing tables: read from BASE with MVCC visibility filtering.

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pub fn execute_operation( &mut self, operation: PlanOperation, ) -> LlkvResult<TransactionResult<StagingCtx::Pager>>

Execute an operation in the transaction staging context

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pub fn operations(&self) -> &[PlanOperation]

Get the operations queued for commit

Auto Trait Implementations§

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impl<BaseCtx, StagingCtx> Freeze for SessionTransaction<BaseCtx, StagingCtx>
where <BaseCtx as TransactionContext>::Snapshot: Freeze,

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impl<BaseCtx, StagingCtx> !RefUnwindSafe for SessionTransaction<BaseCtx, StagingCtx>

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impl<BaseCtx, StagingCtx> Send for SessionTransaction<BaseCtx, StagingCtx>

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impl<BaseCtx, StagingCtx> Sync for SessionTransaction<BaseCtx, StagingCtx>

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impl<BaseCtx, StagingCtx> Unpin for SessionTransaction<BaseCtx, StagingCtx>
where <BaseCtx as TransactionContext>::Snapshot: Unpin,

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impl<BaseCtx, StagingCtx> !UnwindSafe for SessionTransaction<BaseCtx, StagingCtx>

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