Package org.aspectj.weaver.tools.cache

Klasse FlatFileCacheBacking

java.lang.Object

org.aspectj.weaver.tools.cache.AbstractCacheBacking

org.aspectj.weaver.tools.cache.AbstractFileCacheBacking

org.aspectj.weaver.tools.cache.AbstractIndexedFileCacheBacking

org.aspectj.weaver.tools.cache.AsynchronousFileCacheBacking

org.aspectj.weaver.tools.cache.FlatFileCacheBacking

Alle implementierten Schnittstellen:

CacheBacking

public class FlatFileCacheBacking
extends AsynchronousFileCacheBacking

Uses a "flat" files model to store the cached instrumented classes and aspects - i.e., each class/aspect is stored as a separate (binary) file. This is a good mechanism when the number of instrumented class is relatively small (a few 10's). The reason for it is that scanning a folder that has many files in it quickly becomes an I/O bottleneck. Also, some O/S-es may impose internal limits on the maximum number of "children" a folder node may have. On the other hand, it is much faster (again, for small number of instrumented classes) than the ZIP cache since each class/aspect is represented by a single file - thus adding/removing/modifying it is easier.

Autor:

Lyor Goldstein

Verschachtelte Klassen - Übersicht

Von Klasse geerbte verschachtelte Klassen/Schnittstellen org.aspectj.weaver.tools.cache.AsynchronousFileCacheBacking

AsynchronousFileCacheBacking.AbstractCommand, AsynchronousFileCacheBacking.AsyncCommand, AsynchronousFileCacheBacking.AsynchronousFileCacheBackingCreator<T extends AsynchronousFileCacheBacking>, AsynchronousFileCacheBacking.ClearCommand, AsynchronousFileCacheBacking.InsertCommand, AsynchronousFileCacheBacking.KeyedCommand, AsynchronousFileCacheBacking.RemoveCommand, AsynchronousFileCacheBacking.UpdateIndexCommand

Von Klasse geerbte verschachtelte Klassen/Schnittstellen org.aspectj.weaver.tools.cache.AbstractIndexedFileCacheBacking

AbstractIndexedFileCacheBacking.IndexEntry

Feldübersicht

Von Klasse geerbte Felder org.aspectj.weaver.tools.cache.AsynchronousFileCacheBacking

bytesMap, exposedBytes, exposedIndex, index

Von Klasse geerbte Felder org.aspectj.weaver.tools.cache.AbstractIndexedFileCacheBacking

EMPTY_INDEX, EMPTY_KEYS, INDEX_FILE

Von Klasse geerbte Felder org.aspectj.weaver.tools.cache.AbstractFileCacheBacking

WEAVED_CLASS_CACHE_DIR

Von Klasse geerbte Felder org.aspectj.weaver.tools.cache.AbstractCacheBacking

logger

Konstruktorübersicht

Konstruktoren

Konstruktor	Beschreibung
FlatFileCacheBacking(File cacheDir)

Methodenübersicht

Modifizierer und Typ	Methode	Beschreibung
static final FlatFileCacheBacking	createBacking(File cacheDir)
protected Map<String,byte[]>	readClassBytes(Map<String,AbstractIndexedFileCacheBacking.IndexEntry> indexMap, File cacheDir)
protected Map<String,byte[]>	readClassBytes(Map<String,AbstractIndexedFileCacheBacking.IndexEntry> indexMap, File[] files)
protected void	removeClassBytes(String key)	Helper for AsynchronousFileCacheBacking.executeRemoveCommand(RemoveCommand)
protected AbstractIndexedFileCacheBacking.IndexEntry	resolveIndexMapEntry(File cacheDir, AbstractIndexedFileCacheBacking.IndexEntry ie)
protected void	writeClassBytes(String key, byte[] bytes)

Von Klasse geerbte Methoden org.aspectj.weaver.tools.cache.AsynchronousFileCacheBacking

clear, createBacking, executeClearCommand, executeCommand, executeInsertCommand, executeRemoveCommand, executeUpdateIndexCommand, get, getBytesMap, getIndex, getIndexEntries, getIndexMap, postCacheCommand, put, remove, remove, toString

Von Klasse geerbte Methoden org.aspectj.weaver.tools.cache.AbstractIndexedFileCacheBacking

createIndexEntry, getIndexFile, getKeys, readIndex, readIndex, readIndex, writeIndex, writeIndex, writeIndex, writeIndex, writeIndex

Von Klasse geerbte Methoden org.aspectj.weaver.tools.cache.AbstractFileCacheBacking

close, close, delete, getCacheDirectory

Von Klasse geerbte Methoden org.aspectj.weaver.tools.cache.AbstractCacheBacking

crc

Von Klasse geerbte Methoden java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Konstruktordetails

FlatFileCacheBacking

public FlatFileCacheBacking(File cacheDir)

Methodendetails

createBacking

public static final FlatFileCacheBacking createBacking(File cacheDir)

readClassBytes

protected Map<String,byte[]> readClassBytes(Map<String,AbstractIndexedFileCacheBacking.IndexEntry> indexMap,
 File cacheDir)

Angegeben von:

readClassBytes in Klasse AsynchronousFileCacheBacking

readClassBytes

protected Map<String,byte[]> readClassBytes(Map<String,AbstractIndexedFileCacheBacking.IndexEntry> indexMap,
 File[] files)

resolveIndexMapEntry

protected AbstractIndexedFileCacheBacking.IndexEntry resolveIndexMapEntry(File cacheDir,
 AbstractIndexedFileCacheBacking.IndexEntry ie)

Setzt außer Kraft:

resolveIndexMapEntry in Klasse AbstractIndexedFileCacheBacking

writeClassBytes

protected void writeClassBytes(String key,
 byte[] bytes)
                        throws Exception

Setzt außer Kraft:

writeClassBytes in Klasse AbstractFileCacheBacking

Löst aus:

Exception

removeClassBytes

protected void removeClassBytes(String key)
                         throws Exception

Beschreibung aus Klasse kopiert: AsynchronousFileCacheBacking

Helper for AsynchronousFileCacheBacking.executeRemoveCommand(RemoveCommand)

Angegeben von:

removeClassBytes in Klasse AsynchronousFileCacheBacking

Parameter:

key - The key representing the class whose bytes are to be removed

Löst aus:

Exception - if failed to remove class bytes