Package com.ultikits.ultitools.manager

Class JsonTransactionManager.Context

java.lang.Object

com.ultikits.ultitools.manager.JsonTransactionManager.Context

Enclosing class:

JsonTransactionManager

private static final class JsonTransactionManager.Context
extends Object

Internal class to hold JSON transaction state -- the JSON analogue of DataSourceTransactionManager.TransactionContext, minus anything JDBC-specific.

Field Summary

Fields

Modifier and Type	Field	Description
(package private) int	depth
(package private) final Map<Object,Runnable>	restorers	One entry per operator captured so far this transaction, in first-touch order -- insertion order matters if two operators' restores could ever interact, so this is a LinkedHashMap rather than a HashMap.
(package private) boolean	rollbackOnly	D-08: set by an inner JsonTransactionManager.rollback() at depth > 1 instead of tearing the context down.

Constructor Summary

Constructors

Modifier	Constructor	Description
private	Context()

Method Summary

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

depth

int depth

rollbackOnly

boolean rollbackOnly

D-08: set by an inner JsonTransactionManager.rollback() at depth > 1 instead of tearing the context down. The outer JsonTransactionManager.commit() at depth 1 checks this before committing -- if set, it restores every captured snapshot and throws UnexpectedRollbackException rather than silently committing (or silently returning) as if the inner rollback never happened.

restorers

final Map<Object,Runnable> restorers

One entry per operator captured so far this transaction, in first-touch order -- insertion order matters if two operators' restores could ever interact, so this is a LinkedHashMap rather than a HashMap. Each value is a zero-argument Runnable that restores exactly one operator from the snapshot captured for it, built once by JsonTransactionManager.captureIfAbsent(java.lang.Object, java.util.function.Supplier<java.lang.Object>, java.util.function.Consumer<java.lang.Object>) and never mutated afterward.

Constructor Details

Context

private Context()