Package org.apache.lucene.store
Class TrackingDirectoryWrapper
java.lang.Object
org.apache.lucene.store.Directory
org.apache.lucene.store.FilterDirectory
org.apache.lucene.store.TrackingDirectoryWrapper
- All Implemented Interfaces:
Closeable
,AutoCloseable
A delegating Directory that records which files were
written to and deleted.
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Nested Class Summary
Nested classes/interfaces inherited from class org.apache.lucene.store.Directory
Directory.IndexInputSlicer
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Field Summary
Fields inherited from class org.apache.lucene.store.FilterDirectory
in
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Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionvoid
Copies the file src toDirectory
to under the new file name dest.createOutput
(String name, IOContext context) Creates a new, empty file in the directory with the given name.createSlicer
(String name, IOContext context) Creates anDirectory.IndexInputSlicer
for the given file name.void
deleteFile
(String name) Removes an existing file in the directory.Methods inherited from class org.apache.lucene.store.FilterDirectory
clearLock, close, fileExists, fileLength, getDelegate, getLockFactory, getLockID, listAll, makeLock, openInput, setLockFactory, sync, toString
Methods inherited from class org.apache.lucene.store.Directory
ensureOpen
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Constructor Details
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TrackingDirectoryWrapper
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Method Details
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deleteFile
Description copied from class:Directory
Removes an existing file in the directory.- Overrides:
deleteFile
in classFilterDirectory
- Throws:
IOException
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createOutput
Description copied from class:Directory
Creates a new, empty file in the directory with the given name. Returns a stream writing this file.- Overrides:
createOutput
in classFilterDirectory
- Throws:
IOException
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copy
Description copied from class:Directory
Copies the file src toDirectory
to under the new file name dest.If you want to copy the entire source directory to the destination one, you can do so like this:
Directory to; // the directory to copy to for (String file : dir.listAll()) { dir.copy(to, file, newFile, IOContext.DEFAULT); // newFile can be either file, or a new name }
NOTE: this method does not check whether dest exist and will overwrite it if it does.
- Overrides:
copy
in classDirectory
- Throws:
IOException
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createSlicer
Description copied from class:Directory
Creates anDirectory.IndexInputSlicer
for the given file name. IndexInputSlicer allows otherDirectory
implementations to efficiently open one or more slicedIndexInput
instances from a single file handle. The underlying file handle is kept open until theDirectory.IndexInputSlicer
is closed.- Must throw
FileNotFoundException
if the file does not exist (notjava.nio.file.NoSuchFileException
of Java 7).- Overrides:
createSlicer
in classDirectory
- Throws:
IOException
- if anIOException
occurs
- Must throw
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getCreatedFiles
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