Module openj9.dtfj

Package com.ibm.j9ddr.corereaders.tdump.zebedee.util

Class AbstractHashMap

java.lang.Object

com.ibm.j9ddr.corereaders.tdump.zebedee.util.AbstractHashMap

All Implemented Interfaces:

Serializable

Direct Known Subclasses:

AbstractLruCache, IntegerMap, IntegerSet, ObjectMap

public abstract class AbstractHashMap
extends Object
implements Serializable

This is the superclass of a variety of subclasses which provide hash map functionality using integer keys rather than objects. This class uses open addressing with double hashing and has a reasonably small footprint.

See Also:

• Serialized Form

Constructor Summary

Constructors

Constructor	Description
AbstractHashMap()

Method Summary

Modifier and Type	Method	Description
IntEnumeration	getKeys()	Return an enumeration of the keys in this map.
long[]	getKeysArray()	Return an array containing the keys.
int	size()

Methods declared in class java.lang.Object

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

Constructor Details

AbstractHashMap

public AbstractHashMap()

Method Details

size

public int size()

Returns:

the number of entries

getKeys

public IntEnumeration getKeys()

Return an enumeration of the keys in this map. IntEnumeration is similar to Enumeration except that it also provides a nextInt() method to return a primitive value.

getKeysArray

public long[] getKeysArray()

Return an array containing the keys.