public class NullEvictionQueue extends Object implements EvictionQueue
Modifier and Type | Field and Description |
---|---|
static NullEvictionQueue |
INSTANCE
Singleton instance of this class.
|
Modifier and Type | Method and Description |
---|---|
void |
addNodeEntry(NodeEntry entry)
No-op
|
void |
clear()
No-op
|
boolean |
containsNodeEntry(NodeEntry entry)
Returns
false |
NodeEntry |
getFirstNodeEntry()
Returns
null |
NodeEntry |
getNodeEntry(Fqn fqn)
Returns
null |
NodeEntry |
getNodeEntry(String fqn)
Returns
null |
int |
getNumberOfElements()
Returns
0 |
int |
getNumberOfNodes()
Returns
0 |
Iterator<NodeEntry> |
iterator()
Returns an
Iterator whose
hasNext() returns false . |
void |
modifyElementCount(int difference)
No-op
|
void |
removeNodeEntry(NodeEntry entry)
No-op
|
public static final NullEvictionQueue INSTANCE
public void addNodeEntry(NodeEntry entry)
addNodeEntry
in interface EvictionQueue
entry
- The NodeEntry to add to queue.public void clear()
clear
in interface EvictionQueue
public boolean containsNodeEntry(NodeEntry entry)
false
containsNodeEntry
in interface EvictionQueue
entry
- NodeEntry to check for existence in queue.public NodeEntry getFirstNodeEntry()
null
getFirstNodeEntry
in interface EvictionQueue
public NodeEntry getNodeEntry(Fqn fqn)
null
getNodeEntry
in interface EvictionQueue
fqn
- Fqn of the node entry to retrieve.public NodeEntry getNodeEntry(String fqn)
null
getNodeEntry
in interface EvictionQueue
public int getNumberOfElements()
0
getNumberOfElements
in interface EvictionQueue
public int getNumberOfNodes()
0
getNumberOfNodes
in interface EvictionQueue
public void modifyElementCount(int difference)
modifyElementCount
in interface EvictionQueue
public void removeNodeEntry(NodeEntry entry)
removeNodeEntry
in interface EvictionQueue
entry
- The NodeEntry to remove from queue.Copyright © 2012 JBoss, a division of Red Hat. All Rights Reserved.