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Freeze

Overview

module Freeze

Freeze provides automatic persistence for Ice servants.

Interface Index

Connection
A connection to a database (database environment with Berkeley DB).
Evictor
An automatic Ice object persistence manager, based on the evictor pattern.
EvictorIterator
An iterator for the objects managed by the evictor.
ServantInitializer
A servant initializer provides the application with an opportunity to perform custom servant initialization.
Transaction
A transaction.

Exception Index

DatabaseException
A Freeze database exception.
DeadlockException
A Freeze database deadlock exception.
EvictorDeactivatedException
This exception is raised if the evictor has been deactivated.
InvalidPositionException
This Freeze Iterator is not on a valid position, for example this position has been erased.
NoSuchElementException
This exception is raised if there are no further elements in the iteration.
NotFoundException
A Freeze database exception, indicating that a database record could not be found.
TransactionAlreadyInProgressException
An attempt was made to start a transaction while a previous transaction has not yet been committed or rolled back.

Structure Index

CatalogData
The catalog keeps information about Freeze Maps and Freeze evictors in a Berkeley Db environment.
ObjectRecord
The evictor uses a number of maps with ::Ice::Identity keys and ObjectRecord values as its persistent storage.
Statistics
The evictor maintains statistics about each object.

Sequence Index

Key
A database key, represented as a sequence of bytes.
Value
A database value, represented as a sequence of bytes.

Sequences

sequence<byte> Key

A database key, represented as a sequence of bytes.

sequence<byte> Value

A database value, represented as a sequence of bytes.


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