FileReftableStack (JGit - Parent 6.4.0.202211300538-r API)

java.lang.Object
- org.eclipse.jgit.internal.storage.file.FileReftableStack

All Implemented Interfaces:

AutoCloseable
```
public class FileReftableStack
extends Object
implements AutoCloseable
```
A mutable stack of reftables on local filesystem storage. Not thread-safe. This is an AutoCloseable because this object owns the file handles to the open reftables.

Nested Class Summary

Nested Classes
Modifier and Type Class Description

static interface FileReftableStack.Writer
Writer is a callable that writes data to a reftable under construction.

Constructor Summary

Constructors
Constructor	Description
`FileReftableStack(File stackPath, File reftableDir, Runnable onChange, Supplier<Config> configSupplier)`	Creates a stack corresponding to the list of reftables in the argument

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`boolean`	`addReftable(FileReftableStack.Writer w)`	Tries to add a new reftable to the stack.
`void`	`close()`
`MergedReftable`	`getMergedReftable()`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - FileReftableStack
```
public FileReftableStack(File stackPath,
                         File reftableDir,
                         @Nullable
                         Runnable onChange,
                         Supplier<Config> configSupplier)
                  throws IOException
```
    Creates a stack corresponding to the list of reftables in the argument
    
    Parameters:
    
    stackPath - the filename for the stack.
    
    reftableDir - the dir holding the tables.
    
    onChange - hook to call if we notice a new write
    
    configSupplier - Config supplier
    
    Throws:
    
    IOException - on I/O problems
- Method Detail
  - getMergedReftable
```
public MergedReftable getMergedReftable()
```
    Returns:
    
    the merged reftable
  - close
```
public void close()
```
    Specified by:
    
    close in interface AutoCloseable
  - addReftable
```
public boolean addReftable(FileReftableStack.Writer w)
                    throws IOException
```
    Tries to add a new reftable to the stack. Returns true if it succeeded, or false if there was a lock failure, due to races with other processes. This is package private so FileReftableDatabase can call into here.
    
    Parameters:
    
    w - writer to write data to a reftable under construction
    
    Returns:
    
    true if the transaction was successful.
    
    Throws:
    
    IOException - on I/O problems