Class DfsRefUpdate
- java.lang.Object
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- org.eclipse.jgit.lib.RefUpdate
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- org.eclipse.jgit.internal.storage.dfs.DfsRefUpdate
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final class DfsRefUpdate extends RefUpdate
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Nested Class Summary
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Nested classes/interfaces inherited from class org.eclipse.jgit.lib.RefUpdate
RefUpdate.Result
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Constructor Summary
Constructors Constructor Description DfsRefUpdate(DfsRefDatabase refdb, Ref ref)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description protected RefUpdate.Result
doDelete(RefUpdate.Result desiredResult)
Do deleteprotected RefUpdate.Result
doLink(java.lang.String target)
Do linkprotected RefUpdate.Result
doUpdate(RefUpdate.Result desiredResult)
Do updateprotected DfsRefDatabase
getRefDatabase()
Get the reference database this update modifies.protected DfsRepository
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 byRefUpdate.tryLock(boolean)
if it succeeded.RefUpdate.Result
update(RevWalk walk)
Gracefully update the ref to the new value.-
Methods inherited from class org.eclipse.jgit.lib.RefUpdate
delete, delete, disableRefLog, forceUpdate, getExpectedOldObjectId, getName, getNewObjectId, getOldObjectId, getPushCertificate, getRef, getRefLogIdent, getRefLogMessage, getResult, isDetachingSymbolicRef, isForceRefLog, isForceUpdate, isRefLogIncludingResult, link, setCheckConflicting, setDetachingSymbolicRef, setExpectedOldObjectId, setForceRefLog, setForceUpdate, setNewObjectId, setOldObjectId, setPushCertificate, setRefLogIdent, setRefLogMessage, update
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Field Detail
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refdb
private final DfsRefDatabase refdb
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dstRef
private Ref dstRef
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rw
private RevWalk rw
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Constructor Detail
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DfsRefUpdate
DfsRefUpdate(DfsRefDatabase refdb, Ref ref)
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Method Detail
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getRefDatabase
protected DfsRefDatabase getRefDatabase()
Get the reference database this update modifies.- Specified by:
getRefDatabase
in classRefUpdate
- Returns:
- the reference database this update modifies.
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getRepository
protected DfsRepository getRepository()
Get the repository storing the database's objects.- Specified by:
getRepository
in classRefUpdate
- Returns:
- the repository storing the database's objects.
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tryLock
protected boolean tryLock(boolean deref) throws java.io.IOException
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 classRefUpdate
- 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.
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unlock
protected void unlock()
Releases the lock taken byRefUpdate.tryLock(boolean)
if it succeeded.
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update
public RefUpdate.Result update(RevWalk walk) throws java.io.IOException
Gracefully update the ref to the new value.Merge test will be performed according to
RefUpdate.isForceUpdate()
.- Overrides:
update
in classRefUpdate
- 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.
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doUpdate
protected RefUpdate.Result doUpdate(RefUpdate.Result desiredResult) throws java.io.IOException
Do update- Specified by:
doUpdate
in classRefUpdate
- Parameters:
desiredResult
- aRefUpdate.Result
object.- Returns:
result
- Throws:
java.io.IOException
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doDelete
protected RefUpdate.Result doDelete(RefUpdate.Result desiredResult) throws java.io.IOException
Do delete- Specified by:
doDelete
in classRefUpdate
- Parameters:
desiredResult
- aRefUpdate.Result
object.- Returns:
result
- Throws:
java.io.IOException
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doLink
protected RefUpdate.Result doLink(java.lang.String target) throws java.io.IOException
Do link- Specified by:
doLink
in classRefUpdate
- Parameters:
target
- aString
object.- Returns:
RefUpdate.Result.NEW
on success.- Throws:
java.io.IOException
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