org.eclipse.jdt.internal.compiler.codegen
Class CharArrayCache

java.lang.Object
  org.eclipse.jdt.internal.compiler.codegen.CharArrayCache

public class CharArrayCache
extends java.lang.Object

Field Summary

char[][]	keyTable
int[]	valueTable

Constructor Summary

CharArrayCache()
Constructs a new, empty hashtable.

CharArrayCache(int initialCapacity)
Constructs a new, empty hashtable with the specified initial capacity.

Method Summary

void	clear() Clears the hash table so that it has no more elements in it.
boolean	containsKey(char[] key) Returns true if the collection contains an element for the key.
int	get(char[] key) Gets the object associated with the specified key in the hashtable.
int	putIfAbsent(char[] key, int value) Puts the specified element into the hashtable if it wasn't there already, using the specified key.
void	remove(char[] key) Remove the object associated with the specified key in the hashtable.
char[]	returnKeyFor(int value) Returns the key corresponding to the value.
int	size() Returns the number of elements contained in the hashtable.
java.lang.String	toString() Converts to a rather lengthy String.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

keyTable

public char[][] keyTable

valueTable

public int[] valueTable

Constructor Detail

CharArrayCache

public CharArrayCache()

Constructs a new, empty hashtable. A default capacity is used. Note that the hashtable will automatically grow when it gets full.

CharArrayCache

public CharArrayCache(int initialCapacity)

Constructs a new, empty hashtable with the specified initial capacity.

Parameters:

initialCapacity - int the initial number of buckets; must be less than Integer.MAX_VALUE / 2

Method Detail

clear

public void clear()

Clears the hash table so that it has no more elements in it.

containsKey

public boolean containsKey(char[] key)

Returns true if the collection contains an element for the key.

Parameters:

key - char[] the key that we are looking for

Returns:

boolean

get

public int get(char[] key)

Gets the object associated with the specified key in the hashtable.

Parameters:

key - char[] the specified key

Returns:

int the element for the key or -1 if the key is not defined in the hash table.

putIfAbsent

public int putIfAbsent(char[] key,
                       int value)

Puts the specified element into the hashtable if it wasn't there already, using the specified key. The element may be retrieved by doing a get() with the same key. The key and the element cannot be null.

Parameters:

key - the given key in the hashtable

value - the given value

Returns:

int the old value of the key, or -value if it did not have one.

remove

public void remove(char[] key)

Remove the object associated with the specified key in the hashtable.

Parameters:

key - char[] the specified key

returnKeyFor

public char[] returnKeyFor(int value)

Returns the key corresponding to the value. Returns null if the receiver doesn't contain the value.

Parameters:

value - int the value that we are looking for

Returns:

Object

size

public int size()

Returns the number of elements contained in the hashtable.

Returns:

int The size of the table

toString

public java.lang.String toString()

Converts to a rather lengthy String. return String the ascii representation of the receiver

Overrides:

toString in class java.lang.Object