org.apache.felix.scr.impl.helper

Class ReadOnlyDictionary

java.lang.Object

java.util.Dictionary<java.lang.String,java.lang.Object>

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

All Implemented Interfaces:

java.lang.Comparable<ReadOnlyDictionary>, java.util.Map<java.lang.String,java.lang.Object>

public class ReadOnlyDictionary
extends java.util.Dictionary<java.lang.String,java.lang.Object>
implements java.util.Map<java.lang.String,java.lang.Object>, java.lang.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

java.util.Map.Entry<K,V>

Field Summary

Fields

Modifier and Type	Field and Description
private java.util.Hashtable<java.lang.String,java.lang.Object>	m_delegate
private org.osgi.framework.ServiceReference<?>	m_serviceReference

Constructor Summary

Constructors

Constructor and Description
ReadOnlyDictionary(java.util.Map<java.lang.String,java.lang.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 and Description
void	clear()
int	compareTo(ReadOnlyDictionary o)
boolean	containsKey(java.lang.Object key)
boolean	containsValue(java.lang.Object value)
java.util.Enumeration<java.lang.Object>	elements()
java.util.Set<java.util.Map.Entry<java.lang.String,java.lang.Object>>	entrySet()
java.lang.Object	get(java.lang.Object key)
boolean	isEmpty()
java.util.Enumeration<java.lang.String>	keys()
java.util.Set<java.lang.String>	keySet()
java.lang.Object	put(java.lang.String key, java.lang.Object value) This method has no effect and always returns null as this instance is read-only and cannot modify and properties.
void	putAll(java.util.Map<? extends java.lang.String,? extends java.lang.Object> m)
java.lang.Object	remove(java.lang.Object key) This method has no effect and always returns null as this instance is read-only and cannot modify and properties.
int	size()
java.lang.String	toString()
java.util.Collection<java.lang.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

Field Detail

m_delegate

private final java.util.Hashtable<java.lang.String,java.lang.Object> m_delegate

m_serviceReference

private final org.osgi.framework.ServiceReference<?> m_serviceReference

Constructor Detail

ReadOnlyDictionary

public ReadOnlyDictionary(java.util.Map<java.lang.String,java.lang.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 Detail

elements

public java.util.Enumeration<java.lang.Object> elements()

Specified by:

elements in class java.util.Dictionary<java.lang.String,java.lang.Object>

get

public java.lang.Object get(java.lang.Object key)

Specified by:

get in interface java.util.Map<java.lang.String,java.lang.Object>

Specified by:

get in class java.util.Dictionary<java.lang.String,java.lang.Object>

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface java.util.Map<java.lang.String,java.lang.Object>

Specified by:

isEmpty in class java.util.Dictionary<java.lang.String,java.lang.Object>

keys

public java.util.Enumeration<java.lang.String> keys()

Specified by:

keys in class java.util.Dictionary<java.lang.String,java.lang.Object>

put

public java.lang.Object put(java.lang.String key,
                            java.lang.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 java.util.Map<java.lang.String,java.lang.Object>

Specified by:

put in class java.util.Dictionary<java.lang.String,java.lang.Object>

remove

public java.lang.Object remove(java.lang.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 java.util.Map<java.lang.String,java.lang.Object>

Specified by:

remove in class java.util.Dictionary<java.lang.String,java.lang.Object>

size

public int size()

Specified by:

size in interface java.util.Map<java.lang.String,java.lang.Object>

Specified by:

size in class java.util.Dictionary<java.lang.String,java.lang.Object>

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

clear

public void clear()

Specified by:

clear in interface java.util.Map<java.lang.String,java.lang.Object>

containsKey

public boolean containsKey(java.lang.Object key)

Specified by:

containsKey in interface java.util.Map<java.lang.String,java.lang.Object>

containsValue

public boolean containsValue(java.lang.Object value)

Specified by:

containsValue in interface java.util.Map<java.lang.String,java.lang.Object>

entrySet

public java.util.Set<java.util.Map.Entry<java.lang.String,java.lang.Object>> entrySet()

Specified by:

entrySet in interface java.util.Map<java.lang.String,java.lang.Object>

keySet

public java.util.Set<java.lang.String> keySet()

Specified by:

keySet in interface java.util.Map<java.lang.String,java.lang.Object>

putAll

public void putAll(java.util.Map<? extends java.lang.String,? extends java.lang.Object> m)

Specified by:

putAll in interface java.util.Map<java.lang.String,java.lang.Object>

values

public java.util.Collection<java.lang.Object> values()

Specified by:

values in interface java.util.Map<java.lang.String,java.lang.Object>

compareTo

public int compareTo(ReadOnlyDictionary o)

Specified by:

compareTo in interface java.lang.Comparable<ReadOnlyDictionary>