Package org.bedework.util.caching

Class FlushMap<K,V>

java.lang.Object

java.util.AbstractMap<K,V>

java.util.HashMap<K,V>

org.bedework.util.caching.FlushMap<K,V>

Type Parameters:

K - Key class

V - Value class

All Implemented Interfaces:

Serializable, Cloneable, Map<K,V>

public class FlushMap<K,V>
extends HashMap<K,V>

A map which will be flushed after a certain time or when it reaches a certain size.

Author:

douglm

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class java.util.AbstractMap

AbstractMap.SimpleEntry<K extends Object,V extends Object>, AbstractMap.SimpleImmutableEntry<K extends Object,V extends Object>

Nested classes/interfaces inherited from interface java.util.Map

Map.Entry<K extends Object,V extends Object>

Constructor Summary

Constructors

Constructor	Description
FlushMap()	Create a FlushMap with default maxize and flush period.
FlushMap(int size)	Create a FlushMap with given size, default maxize and flush period.
FlushMap(int size, long flushTime, int maxSize)	Create a FlushMap with specified size, maxsize and flush period.
FlushMap(long flushTime, int maxSize)	Create a FlushMap with default size and specified maxsize and flush period.

Method Summary

Modifier and Type	Method	Description
boolean	containsKey(Object key)
V	get(Object key)
V	put(K key, V val)
protected boolean	testFlush()	Override this to modify the behavior - perhaps to preserve some special entries.

Methods inherited from class java.util.HashMap

clear, clone, compute, computeIfAbsent, computeIfPresent, containsValue, entrySet, forEach, getOrDefault, isEmpty, keySet, merge, putAll, putIfAbsent, remove, remove, replace, replace, replaceAll, size, values

Methods inherited from class java.util.AbstractMap

equals, hashCode, toString

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.Map

equals, hashCode

Constructor Detail

FlushMap

public FlushMap()

Create a FlushMap with default maxize and flush period.

FlushMap

public FlushMap(int size)

Create a FlushMap with given size, default maxize and flush period.

Parameters:

size - initial size

FlushMap

public FlushMap(long flushTime,
                int maxSize)

Create a FlushMap with default size and specified maxsize and flush period.

Parameters:

flushTime - millis - 0 means no flush time

maxSize - - 0 means no max size

FlushMap

public FlushMap(int size,
                long flushTime,
                int maxSize)

Create a FlushMap with specified size, maxsize and flush period.

Parameters:

size - initial size

flushTime - millis - 0 means no flush time

maxSize - - 0 means no max size

Method Detail

testFlush

protected boolean testFlush()

Override this to modify the behavior - perhaps to preserve some special entries.

Returns:

true if we flushed.

containsKey

public boolean containsKey(Object key)

Specified by:

containsKey in interface Map<K,V>

Overrides:

containsKey in class HashMap<K,V>

put

public V put(K key,
             V val)

Specified by:

put in interface Map<K,V>

Overrides:

put in class HashMap<K,V>

get

public V get(Object key)

Specified by:

get in interface Map<K,V>

Overrides:

get in class HashMap<K,V>