public class TempFileCache extends Object
Constructor and Description |
---|
TempFileCache()
Create the
getTempDir() |
Modifier and Type | Method and Description |
---|---|
void |
destroy()
Delete the
getTempDir() recursively and remove it's reference. |
static File |
getBaseDir()
Base temp directory used by
TempFileCache . |
static File |
getRootDir()
Root temp directory for this JVM instance.
|
File |
getTempDir()
Temporary directory for individual files (eg.
|
static boolean |
initSingleton()
Documented way to kick off static initialization
|
boolean |
isValid(boolean forExecutables) |
public TempFileCache()
getTempDir()
public static boolean initSingleton()
public void destroy()
getTempDir()
recursively and remove it's reference.public boolean isValid(boolean forExecutables)
forExecutables
- if true
, method also tests whether the underlying getBaseDir()
is suitable to load native libraries or launch executables#isTempExecutable()
,
#isValid()
public static File getBaseDir()
TempFileCache
.
Lifecycle: For one user's concurrently running JVMs and ClassLoader
This is set to:${java.io.tmpdir}/tmpDirPrefix
public static File getRootDir()
This directory is a sub-folder to getBaseDir()
.
Lifecycle: For one user's concurrently running JVMs and ClassLoader
tmpBaseDir/tmpRootPropValue
Use Case: Per ClassLoader files, eg. native libraries.
Old temp directories are cleaned up the next time a JVM is launched that uses TempFileCache.
public File getTempDir()
This directory is a sub-folder to getRootDir()
.
Lifecycle: Within each JVM .. use case dependent, ie. per ClassLoader and per TempFileCache
instance!
The directory name is:
tmpRootDir/jlnMMMMMwhere jlnMMMMM is the unique filename created by File.createTempFile() without the ".tmp" extension.