Package org.aspectj.org.eclipse.jdt.internal.compiler.util

Class CharArrayMap<P>

java.lang.Object

org.aspectj.org.eclipse.jdt.internal.compiler.util.CharArrayMap<P>

All Implemented Interfaces:

Cloneable, CharArrayMapper<P>

public final class CharArrayMap<P>
extends Object
implements CharArrayMapper<P>

This map avoids hashing. This is suitable for few elements or long char arrays because it uses vectorized equals. Vectorized equals is several times faster then calculating hashCode in a loop. This class is not thread safe and callers are responsible for thread safety.

Author:

jkubitz

Constructor Summary

Constructors

Constructor	Description
CharArrayMap()
CharArrayMap(int estimatedSize)

Method Summary

Modifier and Type	Method	Description
boolean	containsKey(char[] key)
P	get(char[] key)
Collection<char[]>	keys()	Returns a copied collection of keys.
P	put(char[] key, P value)
int	size()
String	toString()
Collection<P>	values()	Returns a copied collection of values.

Methods inherited from class java.lang.Object

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

Constructor Details

CharArrayMap

public CharArrayMap()

CharArrayMap

public CharArrayMap(int estimatedSize)

Method Details

values

public Collection<P> values()

Description copied from interface: CharArrayMapper

Returns a copied collection of values.

Specified by:

values in interface CharArrayMapper<P>

Returns:

all values in undefined order. The order is not guaranteed to be stable.

keys

public Collection<char[]> keys()

Description copied from interface: CharArrayMapper

Returns a copied collection of keys.

Specified by:

keys in interface CharArrayMapper<P>

Returns:

all keys in undefined order. The order is not guaranteed to be stable.

containsKey

public boolean containsKey(char[] key)

Specified by:

containsKey in interface CharArrayMapper<P>

get

public P get(char[] key)

Specified by:

get in interface CharArrayMapper<P>

put

public P put(char[] key,
 P value)

Specified by:

put in interface CharArrayMapper<P>

Returns:

the previous value

size

public int size()

Specified by:

size in interface CharArrayMapper<P>

Returns:

the number of keys

toString

public String toString()

Overrides:

toString in class Object