org.springframework.core.env
Class ReadOnlySystemAttributesMap
java.lang.Object
org.springframework.core.env.ReadOnlySystemAttributesMap
- All Implemented Interfaces:
- java.util.Map<java.lang.String,java.lang.String>
abstract class ReadOnlySystemAttributesMap
- extends java.lang.Object
- implements java.util.Map<java.lang.String,java.lang.String>
Read-only Map<String, String>
implementation that is backed by system properties or environment
variables.
Used by AbstractApplicationContext
when a SecurityManager
prohibits access to System.getProperties()
or System.getenv()
.
- Since:
- 3.0
- Author:
- Arjen Poutsma, Chris Beams
Nested classes/interfaces inherited from interface java.util.Map |
java.util.Map.Entry<K,V> |
Method Summary |
void |
clear()
|
boolean |
containsKey(java.lang.Object key)
|
boolean |
containsValue(java.lang.Object value)
|
java.util.Set<java.util.Map.Entry<java.lang.String,java.lang.String>> |
entrySet()
|
java.lang.String |
get(java.lang.Object key)
|
protected abstract java.lang.String |
getSystemAttribute(java.lang.String attributeName)
Template method that returns the underlying system attribute. |
boolean |
isEmpty()
|
java.util.Set<java.lang.String> |
keySet()
|
java.lang.String |
put(java.lang.String key,
java.lang.String value)
|
void |
putAll(java.util.Map<? extends java.lang.String,? extends java.lang.String> m)
|
java.lang.String |
remove(java.lang.Object key)
|
int |
size()
|
java.util.Collection<java.lang.String> |
values()
|
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Methods inherited from interface java.util.Map |
equals, hashCode |
ReadOnlySystemAttributesMap
ReadOnlySystemAttributesMap()
containsKey
public boolean containsKey(java.lang.Object key)
- Specified by:
containsKey
in interface java.util.Map<java.lang.String,java.lang.String>
get
public java.lang.String get(java.lang.Object key)
- Specified by:
get
in interface java.util.Map<java.lang.String,java.lang.String>
- Parameters:
key
- the name of the system attribute to retrieve
- Throws:
java.lang.IllegalArgumentException
- if given key is non-String
isEmpty
public boolean isEmpty()
- Specified by:
isEmpty
in interface java.util.Map<java.lang.String,java.lang.String>
getSystemAttribute
protected abstract java.lang.String getSystemAttribute(java.lang.String attributeName)
- Template method that returns the underlying system attribute.
Implementations typically call System.getProperty(String)
or System.getenv(String)
here.
size
public int size()
- Specified by:
size
in interface java.util.Map<java.lang.String,java.lang.String>
put
public java.lang.String put(java.lang.String key,
java.lang.String value)
- Specified by:
put
in interface java.util.Map<java.lang.String,java.lang.String>
containsValue
public boolean containsValue(java.lang.Object value)
- Specified by:
containsValue
in interface java.util.Map<java.lang.String,java.lang.String>
remove
public java.lang.String remove(java.lang.Object key)
- Specified by:
remove
in interface java.util.Map<java.lang.String,java.lang.String>
clear
public void clear()
- Specified by:
clear
in interface java.util.Map<java.lang.String,java.lang.String>
keySet
public java.util.Set<java.lang.String> keySet()
- Specified by:
keySet
in interface java.util.Map<java.lang.String,java.lang.String>
putAll
public void putAll(java.util.Map<? extends java.lang.String,? extends java.lang.String> m)
- Specified by:
putAll
in interface java.util.Map<java.lang.String,java.lang.String>
values
public java.util.Collection<java.lang.String> values()
- Specified by:
values
in interface java.util.Map<java.lang.String,java.lang.String>
entrySet
public java.util.Set<java.util.Map.Entry<java.lang.String,java.lang.String>> entrySet()
- Specified by:
entrySet
in interface java.util.Map<java.lang.String,java.lang.String>