net.i2p.data

Class EmptyProperties

java.lang.Object

java.util.Dictionary<K,V>

java.util.Hashtable<Object,Object>

java.util.Properties

net.i2p.util.OrderedProperties

net.i2p.data.EmptyProperties

All Implemented Interfaces:

Serializable, Cloneable, Map<Object,Object>

public class EmptyProperties
extends OrderedProperties

Immutable OrderedProperties, to reduce object churn in LS2 where it's expected to be empty. Returned from DataHelper.readProperties(in, null). All methods that modify will throw UnsupportedOperationException, except clear() and remove() which do nothing.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
static EmptyProperties	INSTANCE

Fields inherited from class java.util.Properties

defaults

Method Summary

Modifier and Type	Method and Description
String	getProperty(String key)
void	load(InputStream inStream)
void	load(Reader reader)
void	loadFromXML(InputStream in)
Object	put(Object key, Object value)
void	putAll(Map<? extends Object,? extends Object> t)
Object	setProperty(String key, String value)

Methods inherited from class net.i2p.util.OrderedProperties

entrySet, keySet

Methods inherited from class java.util.Properties

getProperty, list, list, propertyNames, save, store, store, storeToXML, storeToXML, stringPropertyNames

Methods inherited from class java.util.Hashtable

clear, clone, compute, computeIfAbsent, computeIfPresent, contains, containsKey, containsValue, elements, equals, forEach, get, getOrDefault, hashCode, isEmpty, keys, merge, putIfAbsent, rehash, remove, remove, replace, replace, replaceAll, size, toString, values

Methods inherited from class java.lang.Object

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

Field Detail

INSTANCE

public static final EmptyProperties INSTANCE

Method Detail

getProperty

public String getProperty(String key)

Overrides:

getProperty in class Properties

load

public void load(InputStream inStream)

Overrides:

load in class Properties

load

public void load(Reader reader)

Overrides:

load in class Properties

loadFromXML

public void loadFromXML(InputStream in)

Overrides:

loadFromXML in class Properties

put

public Object put(Object key,
                  Object value)

Specified by:

put in interface Map<Object,Object>

Overrides:

put in class Hashtable<Object,Object>

putAll

public void putAll(Map<? extends Object,? extends Object> t)

Specified by:

putAll in interface Map<Object,Object>

Overrides:

putAll in class Hashtable<Object,Object>

setProperty

public Object setProperty(String key,
                          String value)

Overrides:

setProperty in class Properties