Package org.eclipse.jgit.internal.storage.file

Class FileReftableDatabase.FileReftableRefUpdate

java.lang.Object

org.eclipse.jgit.lib.RefUpdate

org.eclipse.jgit.internal.storage.file.FileReftableDatabase.FileReftableRefUpdate

Enclosing class:

FileReftableDatabase

private class FileReftableDatabase.FileReftableRefUpdate
extends RefUpdate

Nested Class Summary

Nested classes/interfaces inherited from class org.eclipse.jgit.lib.RefUpdate

RefUpdate.Result

Field Summary

Fields

Modifier and Type	Field	Description
private Ref	dstRef
private RevWalk	rw

Constructor Summary

Constructors

Constructor	Description
FileReftableRefUpdate(Ref ref)

Method Summary

Modifier and Type	Method	Description
protected RefUpdate.Result	doDelete(RefUpdate.Result desiredResult)	Do delete
protected RefUpdate.Result	doLink(java.lang.String target)	Do link
protected RefUpdate.Result	doUpdate(RefUpdate.Result desiredResult)	Do update
protected RefDatabase	getRefDatabase()	Get the reference database this update modifies.
PersonIdent	getRefLogIdent()	Get identity of the user making the change in the reflog.
protected Repository	getRepository()	Get the repository storing the database's objects.
protected boolean	tryLock(boolean deref)	Try to acquire the lock on the reference.
protected void	unlock()	Releases the lock taken by RefUpdate.tryLock(boolean) if it succeeded.
RefUpdate.Result	update(RevWalk walk)	Gracefully update the ref to the new value.
(package private) void	writeDelete(ReftableWriter w)
(package private) void	writeLink(ReftableWriter w)
(package private) void	writeUpdate(ReftableWriter w)

Methods inherited from class org.eclipse.jgit.lib.RefUpdate

delete, delete, disableRefLog, forceUpdate, getExpectedOldObjectId, getName, getNewObjectId, getOldObjectId, getPushCertificate, getRef, getRefLogMessage, getResult, isDetachingSymbolicRef, isForceRefLog, isForceUpdate, isRefLogIncludingResult, link, setCheckConflicting, setDetachingSymbolicRef, setExpectedOldObjectId, setForceRefLog, setForceUpdate, setNewObjectId, setOldObjectId, setPushCertificate, setRefLogIdent, setRefLogMessage, update

Methods inherited from class java.lang.Object

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

Field Detail

rw

private RevWalk rw

dstRef

private Ref dstRef

Constructor Detail

FileReftableRefUpdate

FileReftableRefUpdate(Ref ref)

Method Detail

getRefDatabase

protected RefDatabase getRefDatabase()

Description copied from class: RefUpdate

Get the reference database this update modifies.

Specified by:

getRefDatabase in class RefUpdate

Returns:

the reference database this update modifies.

getRepository

protected Repository getRepository()

Description copied from class: RefUpdate

Get the repository storing the database's objects.

Specified by:

getRepository in class RefUpdate

Returns:

the repository storing the database's objects.

unlock

protected void unlock()

Description copied from class: RefUpdate

Releases the lock taken by RefUpdate.tryLock(boolean) if it succeeded.

Specified by:

unlock in class RefUpdate

update

public RefUpdate.Result update(RevWalk walk)
                        throws java.io.IOException

Description copied from class: RefUpdate

Gracefully update the ref to the new value.

Merge test will be performed according to RefUpdate.isForceUpdate().

Overrides:

update in class RefUpdate

Parameters:

walk - a RevWalk instance this update command can borrow to perform the merge test. The walk will be reset to perform the test.

Returns:

the result status of the update.

Throws:

java.io.IOException - an unexpected IO error occurred while writing changes.

tryLock

protected boolean tryLock(boolean deref)
                   throws java.io.IOException

Description copied from class: RefUpdate

Try to acquire the lock on the reference.

If the locking was successful the implementor must set the current identity value by calling RefUpdate.setOldObjectId(ObjectId).

Specified by:

tryLock in class RefUpdate

Parameters:

deref - true if the lock should be taken against the leaf level reference; false if it should be taken exactly against the current reference.

Returns:

true if the lock was acquired and the reference is likely protected from concurrent modification; false if it failed.

Throws:

java.io.IOException - the lock couldn't be taken due to an unexpected storage failure, and not because of a concurrent update.

writeUpdate

void writeUpdate(ReftableWriter w)
          throws java.io.IOException

Throws:

java.io.IOException

getRefLogIdent

public PersonIdent getRefLogIdent()

Description copied from class: RefUpdate

Get identity of the user making the change in the reflog.

Overrides:

getRefLogIdent in class RefUpdate

Returns:

identity of the user making the change in the reflog.

writeDelete

void writeDelete(ReftableWriter w)
          throws java.io.IOException

Throws:

java.io.IOException

doUpdate

protected RefUpdate.Result doUpdate(RefUpdate.Result desiredResult)
                             throws java.io.IOException

Description copied from class: RefUpdate

Do update

Specified by:

doUpdate in class RefUpdate

Parameters:

desiredResult - a RefUpdate.Result object.

Returns:

result

Throws:

java.io.IOException

doDelete

protected RefUpdate.Result doDelete(RefUpdate.Result desiredResult)
                             throws java.io.IOException

Description copied from class: RefUpdate

Do delete

Specified by:

doDelete in class RefUpdate

Parameters:

desiredResult - a RefUpdate.Result object.

Returns:

result

Throws:

java.io.IOException

writeLink

void writeLink(ReftableWriter w)
        throws java.io.IOException

Throws:

java.io.IOException

doLink

protected RefUpdate.Result doLink(java.lang.String target)
                           throws java.io.IOException

Description copied from class: RefUpdate

Do link

Specified by:

doLink in class RefUpdate

Parameters:

target - a String object.

Returns:

RefUpdate.Result.NEW on success.

Throws:

java.io.IOException