AbstractHashMap (OpenJ9 JDK 11)

java.lang.Object
- com.ibm.dtfj.corereaders.zos.util.AbstractHashMap

All Implemented Interfaces:

Serializable

Direct Known Subclasses:

AbstractLruCache, IntegerMap, 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

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.

Methods declared in class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - AbstractHashMap
```
public AbstractHashMap()
```
- Method Detail
  - 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.