- java.lang.Object
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- com.ibm.j9ddr.corereaders.tdump.zebedee.util.AbstractHashMap
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- 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
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Constructor Summary
Constructors Constructor Description AbstractHashMap()
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Method Summary
All Methods Instance Methods Concrete Methods 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()
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Method Detail
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size
public int size()
- Returns:
- the number of entries
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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.
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getKeysArray
public long[] getKeysArray()
Return an array containing the keys.
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