[Java] Class ConcurrentReaderHashMap.Entry
- org.codehaus.groovy.runtime.metaclass.ConcurrentReaderHashMap.Entry
- All Implemented Interfaces and Traits:
- MapEntry
protected static class ConcurrentReaderHashMap.Entry
ConcurrentReaderHashMap collision list entry.
Field Summary
Modifiers | Name | Description |
---|---|---|
protected int | hash | |
protected Object | key | |
protected Map.Entry | next | |
protected Object | value |
Methods Summary
Type Params | Return Type | Name and description |
---|---|---|
public boolean |
equals(Object o) | |
public Object |
getKey() | |
public Object |
getValue() Get the value. | |
public int |
hashCode() | |
public Object |
setValue(Object value) Set the value of this entry. | |
public String |
toString() |
Inherited Methods Summary
Methods inherited from class | Name |
---|---|
class Object | wait, wait, wait, equals, toString, hashCode, getClass, notify, notifyAll |
Field Detail
protected final int hash
protected final Object key
protected final Map.Entry next
protected Object value
Method Detail
public boolean equals(Object o)
public Object getKey()
public Object getValue()
Get the value. Note: In an entrySet or entrySet.iterator, unless the set or iterator is used under synchronization of the table as a whole (or you can otherwise guarantee lack of concurrent modification), getValue might return null, reflecting the fact that the entry has been concurrently removed. However, there are no assurances that concurrent removals will be reflected using this method.
- Returns:
- the current value, or null if the entry has been detectably removed.
public int hashCode()
public Object setValue(Object value)
Set the value of this entry. Note: In an entrySet or entrySet.iterator), unless the set or iterator is used under synchronization of the table as a whole (or you can otherwise guarantee lack of concurrent modification), setValue is not strictly guaranteed to actually replace the value field obtained via the get operation of the underlying hash table in multi-threaded applications. If iterator-wide synchronization is not used, and any other concurrent put or remove operations occur, sometimes even to other entries, then this change is not guaranteed to be reflected in the hash table. (It might, or it might not. There are no assurances either way.)
- Parameters:
-
value
- the new value.
- Returns:
- the previous value, or null if entry has been detectably removed.
- Throws:
- NullPointerException if the value is
null
.
public String toString()
© 2003-2020 The Apache Software Foundation
Licensed under the Apache license.
https://docs.groovy-lang.org/3.0.7/html/gapi/org/codehaus/groovy/runtime/metaclass/ConcurrentReaderHashMap.Entry.html