java.lang.Object

java.util.Dictionary<String,Object>

org.apache.felix.scr.impl.helper.ReadOnlyDictionary

All Implemented Interfaces:: Comparable<ReadOnlyDictionary>, Map<String,Object>

public class ReadOnlyDictionary extends Dictionary<String,Object> implements Map<String,Object>, Comparable<ReadOnlyDictionary>

The ReadOnlyDictionary is both a Dictionary and a Map whose modification methods (like Dictionary.put(Object, Object), remove(Object), etc.) throw an UnsupportedOperationException.

Nested Class Summary

Nested classes/interfaces inherited from interface java.util.Map
Map.Entry<K,V>
Constructor Summary

Constructors

Constructor

Description

ReadOnlyDictionary(Map<String,Object> delegate)

Creates a wrapper for the given delegate dictionary providing read only access to the data.

ReadOnlyDictionary(org.osgi.framework.ServiceReference<?> serviceReference)

Creates a wrapper for the given service reference providing read only access to the reference properties.
Method Summary

Modifier and Type

Method

Description

void

clear()

int

compareTo(ReadOnlyDictionary o)

boolean

containsKey(Object key)

boolean

containsValue(Object value)

Enumeration<Object>

elements()

Set<Map.Entry<String,Object>>

entrySet()

Object

get(Object key)

boolean

isEmpty()

Enumeration<String>

keys()

Set<String>

keySet()

Object

put(String key, Object value)

This method has no effect and always returns null as this instance is read-only and cannot modify and properties.

void

putAll(Map<? extends String,? extends Object> m)

Object

remove(Object key)

This method has no effect and always returns null as this instance is read-only and cannot modify and properties.

int

size()

String

toString()

Collection<Object>

values()

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.Map
compute, computeIfAbsent, computeIfPresent, equals, forEach, getOrDefault, hashCode, merge, putIfAbsent, remove, replace, replace, replaceAll

Constructor Details
- ReadOnlyDictionary
  
  public ReadOnlyDictionary(Map<String,Object> delegate)
  
  Creates a wrapper for the given delegate dictionary providing read only access to the data.
- ReadOnlyDictionary
  
  public ReadOnlyDictionary(org.osgi.framework.ServiceReference<?> serviceReference)
  
  Creates a wrapper for the given service reference providing read only access to the reference properties.
Method Details
- elements
  
  public Enumeration<Object> elements()
  
  Specified by:
  
  elements in class Dictionary<String,Object>
- get
  
  public Object get(Object key)
  
  Specified by:
  
  get in interface Map<String,Object>
  
  Specified by:
  
  get in class Dictionary<String,Object>
- isEmpty
  
  public boolean isEmpty()
  
  Specified by:
  
  isEmpty in interface Map<String,Object>
  
  Specified by:
  
  isEmpty in class Dictionary<String,Object>
- keys
  
  public Enumeration<String> keys()
  
  Specified by:
  
  keys in class Dictionary<String,Object>
- put
  
  public Object put(String key, Object value)
  
  This method has no effect and always returns null as this instance is read-only and cannot modify and properties.
  
  Specified by:
  
  put in interface Map<String,Object>
  
  Specified by:
  
  put in class Dictionary<String,Object>
- remove
  
  public Object remove(Object key)
  
  This method has no effect and always returns null as this instance is read-only and cannot modify and properties.
  
  Specified by:
  
  remove in interface Map<String,Object>
  
  Specified by:
  
  remove in class Dictionary<String,Object>
- size
  
  public int size()
  
  Specified by:
  
  size in interface Map<String,Object>
  
  Specified by:
  
  size in class Dictionary<String,Object>
- toString
  
  public String toString()
  
  Overrides:
  
  toString in class Object
- clear
  
  public void clear()
  
  Specified by:
  
  clear in interface Map<String,Object>
- containsKey
  
  public boolean containsKey(Object key)
  
  Specified by:
  
  containsKey in interface Map<String,Object>
- containsValue
  
  public boolean containsValue(Object value)
  
  Specified by:
  
  containsValue in interface Map<String,Object>
- entrySet
  
  public Set<Map.Entry<String,Object>> entrySet()
  
  Specified by:
  
  entrySet in interface Map<String,Object>
- keySet
  
  public Set<String> keySet()
  
  Specified by:
  
  keySet in interface Map<String,Object>
- putAll
  
  public void putAll(Map<? extends String,? extends Object> m)
  
  Specified by:
  
  putAll in interface Map<String,Object>
- values
  
  public Collection<Object> values()
  
  Specified by:
  
  values in interface Map<String,Object>
- compareTo
  
  public int compareTo(ReadOnlyDictionary o)
  
  Specified by:
  
  compareTo in interface Comparable<ReadOnlyDictionary>

Class ReadOnlyDictionary

Nested Class Summary

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

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Methods inherited from interface java.util.Map

Constructor Details

ReadOnlyDictionary

ReadOnlyDictionary

Method Details

elements

get

isEmpty

keys

put

remove

size

toString

clear

containsKey

containsValue

entrySet

keySet

putAll

values

compareTo