Package dev.getelements.elements.rt.transact

Class AbstractResourceEntry

java.lang.Object

dev.getelements.elements.rt.transact.AbstractResourceEntry

All Implemented Interfaces:

ResourceEntry, AutoCloseable

Direct Known Subclasses:

NullResourceEntry, UnixFSResourceEntryBase

public abstract class AbstractResourceEntry
extends Object
implements ResourceEntry

Nested Class Summary

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

ResourceEntry.OperationalStrategy

Field Summary

Fields

Modifier and Type	Field	Description
protected final ResourceEntry.OperationalStrategy	operationalStrategy

Constructor Summary

Constructors

Constructor	Description
AbstractResourceEntry(ResourceEntry.OperationalStrategy operationalStrategy)

Method Summary

Modifier and Type	Method	Description
boolean	delete()	Flags this entry for removal returning the entry to absent state.
Optional<ResourceId>	findResourceId()	Finds the ResourceId associated with the node, or a result equivalent to Optional.empty() if no such resource id exists.
Set<Path>	getReversePathsImmutable()	Gets the internal immutable list of reverse links.
boolean	isOriginalContents()	Return true if the content is the original content.
boolean	isOriginalReversePaths()	Checks if the list of reverse links are the original set of reverse links.
boolean	link(Path path)	Links this ResourceEntry for the supplied Path.
boolean	unlink(Path path)	Unlinks this ResourceEntry for the supplied Path.
ResourceContents	updateResourceContents()	Updates the contents of this ResourceEntry by overriding the supplied

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.ResourceEntry

close, findOriginalResourceContents, findOriginalResourceId, findResourceContents, flush, getOriginalResourceId, getOriginalReversePathsImmutable, getResourceId, isAbsent, isPresent, loadResourceContents

Field Details

operationalStrategy

protected final ResourceEntry.OperationalStrategy operationalStrategy

Constructor Details

AbstractResourceEntry

public AbstractResourceEntry(ResourceEntry.OperationalStrategy operationalStrategy)

Method Details

isOriginalContents

public boolean isOriginalContents()

Description copied from interface: ResourceEntry

Return true if the content is the original content.

Specified by:

isOriginalContents in interface ResourceEntry

Returns:

true if the content is original.

isOriginalReversePaths

public boolean isOriginalReversePaths()

Description copied from interface: ResourceEntry

Checks if the list of reverse links are the original set of reverse links.

Specified by:

isOriginalReversePaths in interface ResourceEntry

Returns:

true if the links are original

findResourceId

public Optional<ResourceId> findResourceId()

Description copied from interface: ResourceEntry

Finds the ResourceId associated with the node, or a result equivalent to Optional.empty() if no such resource id exists.

Specified by:

findResourceId in interface ResourceEntry

Returns:

an Optional<ResourceId> containing the ResourceId

getReversePathsImmutable

public Set<Path> getReversePathsImmutable()

Description copied from interface: ResourceEntry

Gets the internal immutable list of reverse links. Will always return an empty Set if no links exist.

Specified by:

getReversePathsImmutable in interface ResourceEntry

Returns:

the reverse links, never null.

link

public boolean link(Path path)

Description copied from interface: ResourceEntry

Links this ResourceEntry for the supplied Path.

Specified by:

link in interface ResourceEntry

Parameters:

path - the Path to unlink

Returns:

unlink

public boolean unlink(Path path)

Description copied from interface: ResourceEntry

Unlinks this ResourceEntry for the supplied Path.

Specified by:

unlink in interface ResourceEntry

Parameters:

path - the Path to unlink

Returns:

true if the collection changed as the result of this operation

updateResourceContents

public ResourceContents updateResourceContents()

Description copied from interface: ResourceEntry

Updates the contents of this ResourceEntry by overriding the supplied

Specified by:

updateResourceContents in interface ResourceEntry

Returns:

ResourceContents the contents

delete

public boolean delete()

Description copied from interface: ResourceEntry

Flags this entry for removal returning the entry to absent state. If this entry is absent this will have no effect and the method will return false. Additionally, the operational strategy associated with this entry may opt to do nothing and return false as well.

Specified by:

delete in interface ResourceEntry

Returns:

true if clearing this entry had any effect