org.apache.tomcat.util.buf
Class StringCache

java.lang.Object
  org.apache.tomcat.util.buf.StringCache

public class StringCache
extends java.lang.Object

This class implements a String cache for ByteChunk and CharChunk.

Author:

Remy Maucherat

byteEnabled

protected static boolean byteEnabled

Enabled ?

charEnabled

protected static boolean charEnabled

trainThreshold

protected static int trainThreshold

cacheSize

protected static int cacheSize

maxStringSize

protected static int maxStringSize

bcStats

protected static java.util.HashMap bcStats

Statistics hash map for byte chunk.

bcCount

protected static int bcCount

toString count for byte chunk.

bcCache

protected static StringCache.ByteEntry[] bcCache

Cache for byte chunk.

ccStats

protected static java.util.HashMap ccStats

Statistics hash map for char chunk.

ccCount

protected static int ccCount

toString count for char chunk.

ccCache

protected static StringCache.CharEntry[] ccCache

Cache for char chunk.

accessCount

protected static int accessCount

Access count.

hitCount

protected static int hitCount

Hit count.

StringCache

public StringCache()

getCacheSize

public int getCacheSize()

Returns:

Returns the cacheSize.

setCacheSize

public void setCacheSize(int cacheSize)

Parameters:

cacheSize - The cacheSize to set.

getByteEnabled

public boolean getByteEnabled()

Returns:

Returns the enabled.

setByteEnabled

public void setByteEnabled(boolean byteEnabled)

Parameters:

byteEnabled - The enabled to set.

getCharEnabled

public boolean getCharEnabled()

Returns:

Returns the enabled.

setCharEnabled

public void setCharEnabled(boolean charEnabled)

Parameters:

charEnabled - The enabled to set.

getTrainThreshold

public int getTrainThreshold()

Returns:

Returns the trainThreshold.

setTrainThreshold

public void setTrainThreshold(int trainThreshold)

Parameters:

trainThreshold - The trainThreshold to set.

getAccessCount

public int getAccessCount()

Returns:

Returns the accessCount.

getHitCount

public int getHitCount()

Returns:

Returns the hitCount.

reset

public void reset()

toString

public static java.lang.String toString(ByteChunk bc)

toString

public static java.lang.String toString(CharChunk cc)

compare

protected static final int compare(ByteChunk name,
                                   byte[] compareTo)

Compare given byte chunk with byte array. Return -1, 0 or +1 if inferior, equal, or superior to the String.

find

protected static final java.lang.String find(ByteChunk name)

Find an entry given its name in the cache and return the associated String.

findClosest

protected static final int findClosest(ByteChunk name,
                                       StringCache.ByteEntry[] array,
                                       int len)

Find an entry given its name in a sorted array of map elements. This will return the index for the closest inferior or equal item in the given array.

compare

protected static final int compare(CharChunk name,
                                   char[] compareTo)

Compare given char chunk with char array. Return -1, 0 or +1 if inferior, equal, or superior to the String.

find

protected static final java.lang.String find(CharChunk name)

Find an entry given its name in the cache and return the associated String.

findClosest

protected static final int findClosest(CharChunk name,
                                       StringCache.CharEntry[] array,
                                       int len)

Find an entry given its name in a sorted array of map elements. This will return the index for the closest inferior or equal item in the given array.