WeakValueHashMap

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java.lang.Object
- java.util.AbstractMap
- - org.biojava.nbio.ontology.utils.WeakValueHashMap

All Implemented Interfaces:

java.util.Map
```
public class WeakValueHashMap
extends java.util.AbstractMap
```
Map implementation which keeps weak references to values. Entries are removed from the map when their value is no longer reachable using normal (hard) references. This is useful for maintaining canonical copies of objects without forcing these objects to remain in memory forever.
Note that this is distinct from the standard library class, WeakHashMap which has weak keys.

Since:

1.3

Author:

Thomas Down

Nested Class Summary
- Nested classes/interfaces inherited from class java.util.AbstractMap
  java.util.AbstractMap.SimpleEntry<K,V>, java.util.AbstractMap.SimpleImmutableEntry<K,V>
- Nested classes/interfaces inherited from interface java.util.Map
  java.util.Map.Entry<K,V>

Constructor Summary

Constructors
Constructor and Description

WeakValueHashMap()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`boolean`	`containsKey(java.lang.Object o)`
`java.util.Set`	`entrySet()`
`java.lang.Object`	`get(java.lang.Object key)`
`java.lang.Object`	`put(java.lang.Object key, java.lang.Object value)`

Methods inherited from class java.util.AbstractMap
clear, clone, containsValue, equals, hashCode, isEmpty, keySet, putAll, remove, size, toString, values

Methods inherited from class java.lang.Object
finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.Map
compute, computeIfAbsent, computeIfPresent, forEach, getOrDefault, merge, putIfAbsent, remove, replace, replace, replaceAll

- Constructor Detail
  - WeakValueHashMap
```
public WeakValueHashMap()
```
- Method Detail
  - put
```
public java.lang.Object put(java.lang.Object key,
                            java.lang.Object value)
```
    Specified by:
    
    put in interface java.util.Map
    
    Overrides:
    
    put in class java.util.AbstractMap
  - get
```
public java.lang.Object get(java.lang.Object key)
```
    Specified by:
    
    get in interface java.util.Map
    
    Overrides:
    
    get in class java.util.AbstractMap
  - containsKey
```
public boolean containsKey(java.lang.Object o)
```
    Specified by:
    
    containsKey in interface java.util.Map
    
    Overrides:
    
    containsKey in class java.util.AbstractMap
  - entrySet
```
public java.util.Set entrySet()
```
    Specified by:
    
    entrySet in interface java.util.Map
    
    Specified by:
    
    entrySet in class java.util.AbstractMap

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