org.apache.river.lease

Class AbstractLeaseMap

java.lang.Object

org.apache.river.lease.AbstractLeaseMap

All Implemented Interfaces:

Map, LeaseMap

public abstract class AbstractLeaseMap
extends Object
implements LeaseMap

A base class for implementing LeaseMaps. This class implements all of the Map methods, and ensures keys and values are of the correct type. The subclass is responsible for implementing the actual LeaseMap methods: canContainKey, renewAll, and cancelAll, and serialization of any subclass state.

Author:

Sun Microsystems, Inc.

Field Summary

Fields

Modifier and Type	Field and Description
protected Map	map Map from Lease to Long(duration), where all leases have the same destination.
protected Object	mapLock

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	AbstractLeaseMap(Lease lease, long duration) Default to using a small HashMap.
protected	AbstractLeaseMap(Map map, Lease lease, long duration) Provide a map of your choice.

Method Summary

Modifier and Type	Method and Description
protected void	checkKey(Object key) Check that the key is valid for this map
protected static void	checkValue(Object value) Check that the value is a Long
void	clear()
boolean	containsKey(Object key)
boolean	containsValue(Object value)
Set	entrySet()
boolean	equals(Object o)
Object	get(Object key)
int	hashCode()
boolean	isEmpty()
Set	keySet()
Object	put(Object key, Object value)
void	putAll(Map m)
Object	remove(Object key)
int	size()
Collection	values()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface net.jini.core.lease.LeaseMap

cancelAll, canContainKey, renewAll

Methods inherited from interface java.util.Map

compute, computeIfAbsent, computeIfPresent, forEach, getOrDefault, merge, putIfAbsent, remove, replace, replace, replaceAll

Field Detail

map

protected final Map map

Map from Lease to Long(duration), where all leases have the same destination.

mapLock

protected final Object mapLock

Constructor Detail

AbstractLeaseMap

protected AbstractLeaseMap(Lease lease,
                           long duration)

Default to using a small HashMap. It is assumed that canContainKey(lease) is true.

Parameters:

lease - Lease

duration - in milliseconds.

AbstractLeaseMap

protected AbstractLeaseMap(Map map,
                           Lease lease,
                           long duration)

Provide a map of your choice. It is assumed that canContainKey(lease) is true.

Parameters:

map - underlying implementation to be wrapped.

lease - Lease

duration - in milliseconds.

Method Detail

checkKey

protected void checkKey(Object key)

Check that the key is valid for this map

Parameters:

key - to be type checked

checkValue

protected static void checkValue(Object value)

Check that the value is a Long

Parameters:

value - to be type checked.

size

public int size()

Specified by:

size in interface Map

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface Map

containsKey

public boolean containsKey(Object key)

Specified by:

containsKey in interface Map

containsValue

public boolean containsValue(Object value)

Specified by:

containsValue in interface Map

get

public Object get(Object key)

Specified by:

get in interface Map

put

public Object put(Object key,
                  Object value)

Specified by:

put in interface Map

remove

public Object remove(Object key)

Specified by:

remove in interface Map

putAll

public void putAll(Map m)

Specified by:

putAll in interface Map

clear

public void clear()

Specified by:

clear in interface Map

keySet

public Set keySet()

Specified by:

keySet in interface Map

values

public Collection values()

Specified by:

values in interface Map

entrySet

public Set entrySet()

Specified by:

entrySet in interface Map

equals

public boolean equals(Object o)

Specified by:

equals in interface Map

Overrides:

equals in class Object

hashCode

public int hashCode()

Specified by:

hashCode in interface Map

Overrides:

hashCode in class Object