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java.lang.Objectorg.h2.store.fs.FilePath
org.h2.store.fs.FilePathWrapper
public abstract class FilePathWrapper
The base class for wrapping / delegating file systems such as the split file system.
Field Summary |
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Fields inherited from class org.h2.store.fs.FilePath |
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name |
Constructor Summary | |
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FilePathWrapper()
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Method Summary | |
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boolean |
canWrite()
Check if the file is writable. |
void |
createDirectory()
Create a directory (all required parent directories already exist). |
boolean |
createFile()
Create a new file. |
FilePath |
createTempFile(java.lang.String suffix,
boolean deleteOnExit,
boolean inTempDir)
Create a new temporary file. |
void |
delete()
Delete a file or directory if it exists. |
boolean |
exists()
Checks if a file exists. |
protected FilePath |
getBase()
|
FilePath |
getParent()
Get the parent directory of a file or directory. |
FilePathWrapper |
getPath(java.lang.String path)
Convert a file to a path. |
protected java.lang.String |
getPrefix()
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boolean |
isAbsolute()
Check if the file name includes a path. |
boolean |
isDirectory()
Check if it is a file or a directory. |
long |
lastModified()
Get the last modified date of a file |
void |
moveTo(FilePath newName)
Rename a file if this is allowed. |
java.util.List<FilePath> |
newDirectoryStream()
List the files and directories in the given directory. |
java.io.InputStream |
newInputStream()
Create an input stream to read from the file. |
java.io.OutputStream |
newOutputStream(boolean append)
Create an output stream to write into the file. |
java.nio.channels.FileChannel |
open(java.lang.String mode)
Open a random access file object. |
boolean |
setReadOnly()
Disable the ability to write. |
long |
size()
Get the size of a file in bytes |
FilePath |
toRealPath()
Normalize a file name. |
FilePath |
unwrap()
Get the unwrapped file name (without wrapper prefixes if wrapping / delegating file systems are used). |
protected FilePath |
unwrap(java.lang.String path)
Get the base path for the given wrapped path. |
FilePathWrapper |
wrap(FilePath base)
Create a wrapped path instance for the given base path. |
Methods inherited from class org.h2.store.fs.FilePath |
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get, getName, getNextTempFileNamePart, getScheme, register, toString, unregister |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Constructor Detail |
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public FilePathWrapper()
Method Detail |
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public FilePathWrapper getPath(java.lang.String path)
FilePath
java.nio.file.spi.FileSystemProvider.getPath
, but may
return an object even if the scheme doesn't match in case of the the
default file provider.
getPath
in class FilePath
path
- the path
public FilePathWrapper wrap(FilePath base)
base
- the base path
public FilePath unwrap()
FilePath
unwrap
in class FilePath
protected java.lang.String getPrefix()
protected FilePath unwrap(java.lang.String path)
path
- the path including the scheme prefix
protected FilePath getBase()
public boolean canWrite()
FilePath
canWrite
in class FilePath
public void createDirectory()
FilePath
createDirectory
in class FilePath
public boolean createFile()
FilePath
createFile
in class FilePath
public void delete()
FilePath
delete
in class FilePath
public boolean exists()
FilePath
exists
in class FilePath
public FilePath getParent()
FilePath
getParent
in class FilePath
public boolean isAbsolute()
FilePath
isAbsolute
in class FilePath
public boolean isDirectory()
FilePath
isDirectory
in class FilePath
public long lastModified()
FilePath
lastModified
in class FilePath
public FilePath toRealPath()
FilePath
toRealPath
in class FilePath
public java.util.List<FilePath> newDirectoryStream()
FilePath
newDirectoryStream
in class FilePath
public void moveTo(FilePath newName)
FilePath
moveTo
in class FilePath
newName
- the new fully qualified file namepublic java.io.InputStream newInputStream() throws java.io.IOException
FilePath
newInputStream
in class FilePath
java.io.IOException
public java.io.OutputStream newOutputStream(boolean append)
FilePath
newOutputStream
in class FilePath
append
- if true, the file will grow, if false, the file will be
truncated first
public java.nio.channels.FileChannel open(java.lang.String mode) throws java.io.IOException
FilePath
open
in class FilePath
mode
- the access mode. Supported are r, rw, rws, rwd
java.io.IOException
public boolean setReadOnly()
FilePath
setReadOnly
in class FilePath
public long size()
FilePath
size
in class FilePath
public FilePath createTempFile(java.lang.String suffix, boolean deleteOnExit, boolean inTempDir) throws java.io.IOException
FilePath
createTempFile
in class FilePath
suffix
- the suffixdeleteOnExit
- if the file should be deleted when the virtual
machine existsinTempDir
- if the file should be stored in the temporary directory
java.io.IOException
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