org.eclipse.jdt.internal.compiler.codegen

Class CharArrayCache

java.lang.Object

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

public class CharArrayCache
extends Object

Field Summary

Fields

Modifier and Type	Field and Description
char[][]	keyTable
int[]	valueTable

Constructor Summary

Constructors

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

Method Summary

Modifier and Type	Method and Description
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.
String	toString() Converts to a rather lengthy String.

Methods inherited from class java.lang.Object

clone, equals, finalize, 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 String toString()

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

Overrides:

toString in class Object