SQLite-based checkpointer

Persists checkpoints in a SQLite database. Requires the DBI and RSQLite packages.

Value

list(step, state) or NULL.

State snapshot or NULL.

Character vector.

Super class

puppeteeR::Checkpointer -> SQLiteCheckpointer

Methods

Public methods

• SQLiteCheckpointer$new()

• SQLiteCheckpointer$save()

• SQLiteCheckpointer$load_latest()

• SQLiteCheckpointer$load_step()

• SQLiteCheckpointer$list_threads()

• SQLiteCheckpointer$clone()

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Method new()

Create a SQLite checkpointer.

Usage

SQLiteCheckpointer$new(path)

Arguments

path

Character. Path to the SQLite database file.

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Method save()

Save a snapshot.

Usage

SQLiteCheckpointer$save(thread_id, step, state_snapshot)

Arguments

thread_id

Character.

step

Integer.

state_snapshot

Named list.

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Method load_latest()

Load the latest snapshot.

Usage

SQLiteCheckpointer$load_latest(thread_id)

Arguments

thread_id

Character.

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Method load_step()

Load snapshot at exact step.

Usage

SQLiteCheckpointer$load_step(thread_id, step)

Arguments

thread_id

Character.

step

Integer.

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Method list_threads()

Return all thread IDs.

Usage

SQLiteCheckpointer$list_threads()

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Method clone()

The objects of this class are cloneable with this method.

Usage

SQLiteCheckpointer$clone(deep = FALSE)

Arguments

deep

Whether to make a deep clone.