Package dev.getelements.elements.rt.transact

Class NullTaskEntry<ScopeT>

java.lang.Object

dev.getelements.elements.rt.transact.AbstractTaskEntry<ScopeT>

dev.getelements.elements.rt.transact.NullTaskEntry<ScopeT>

Type Parameters:

ScopeT -

All Implemented Interfaces:

TaskEntry<ScopeT>, AutoCloseable

public class NullTaskEntry<ScopeT>
extends AbstractTaskEntry<ScopeT>

Used to indicate a TaskEntry<?> which is null. This instance will always behave as if the TaskEntry is not present.

Nested Class Summary

Nested classes/interfaces inherited from interface dev.getelements.elements.rt.transact.TaskEntry

TaskEntry.OperationalStrategy<ScopeT>

Method Summary

Modifier and Type	Method	Description
void	close()	Closes this TaskEntry.
Optional<ScopeT>	findOriginalScope()	Finds the original scope of the original TaskEntry<ScopeT>
void	flush(TransactionJournal.MutableEntry mutableEntry)	Flushes this TaskEntry to disk.
Map<TaskId,TransactionalTask>	getOriginalTasksImmutable()	Gets all of hte original tasks in this TaskEntry.
static boolean	isNull(TaskEntry<?> entry)
static <T> NullTaskEntry<T>	nullInstance()

Methods inherited from class dev.getelements.elements.rt.transact.AbstractTaskEntry

addTask, delete, deleteTask, findScope, getTasksImmutable

Methods inherited from class java.lang.Object

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

Methods inherited from interface dev.getelements.elements.rt.transact.TaskEntry

getOriginalScope, getScope, isAbsent, isPresent

Method Details

findOriginalScope

public Optional<ScopeT> findOriginalScope()

Description copied from interface: TaskEntry

Finds the original scope of the original TaskEntry<ScopeT>

Returns:

getOriginalTasksImmutable

public Map<TaskId,TransactionalTask> getOriginalTasksImmutable()

Description copied from interface: TaskEntry

Gets all of hte original tasks in this TaskEntry.

Returns:

the Set<TransactionalTask>

flush

public void flush(TransactionJournal.MutableEntry mutableEntry)

Description copied from interface: TaskEntry

Flushes this TaskEntry to disk.

Parameters:

mutableEntry -

close

public void close()

Description copied from interface: TaskEntry

Closes this TaskEntry.

isNull

public static boolean isNull(TaskEntry<?> entry)

nullInstance

public static <T> NullTaskEntry<T> nullInstance()