org.postgresql.pljava.internal
Class TransactionalMap

java.lang.Object
  extended by java.util.AbstractMap<K,V>
      extended by java.util.HashMap<java.lang.Object,java.lang.Object>
          extended by org.postgresql.pljava.internal.TransactionalMap
All Implemented Interfaces:
java.io.Serializable, java.lang.Cloneable, java.util.Map<java.lang.Object,java.lang.Object>

public class TransactionalMap
extends java.util.HashMap<java.lang.Object,java.lang.Object>

A TransactionalMap acts as a modifiable front for a backing map. All modifications can be reverted by a call to abort or propagated to the backing map by a call to commit. The map is not synchronized so care should be taken if multiple threads will access the map.

See Also:
Serialized Form

Nested Class Summary
protected  class TransactionalMap.BackedEntry
           
protected  class TransactionalMap.EntryIterator
           
protected  class TransactionalMap.KeyIterator
           
protected  class TransactionalMap.ValueIterator
           
 
Nested classes/interfaces inherited from class java.util.AbstractMap
java.util.AbstractMap.SimpleEntry<K,V>, java.util.AbstractMap.SimpleImmutableEntry<K,V>
 
Constructor Summary
protected TransactionalMap(java.util.Map<java.lang.Object,java.lang.Object> base)
           
 
Method Summary
 void abort()
          Undo all changes made since the map was created or since last commit or abort.
 void clear()
          Clear this map (an anti-object is inserted for each entry present in the backed map).
 void commit()
          Commit all changes made since the map was created or since last commit or abort.
 boolean containsKey(java.lang.Object key)
           
 boolean containsValue(java.lang.Object val)
           
 java.util.Set<java.util.Map.Entry<java.lang.Object,java.lang.Object>> entrySet()
           
 java.lang.Object get(java.lang.Object key)
           
protected  java.util.Iterator getEntryIterator()
           
protected  java.util.Iterator<java.lang.Object> getKeyIterator()
           
protected  java.util.Iterator<java.lang.Object> getValueIterator()
           
 boolean isEmpty()
           
 java.util.Set<java.lang.Object> keySet()
           
 java.lang.Object put(java.lang.Object key, java.lang.Object value)
           
 void putAll(java.util.Map<? extends java.lang.Object,? extends java.lang.Object> t)
           
 java.lang.Object remove(java.lang.Object key)
           
 int size()
           
 java.util.Collection<java.lang.Object> values()
           
 
Methods inherited from class java.util.HashMap
clone
 
Methods inherited from class java.util.AbstractMap
equals, hashCode, toString
 
Methods inherited from class java.lang.Object
finalize, getClass, notify, notifyAll, wait, wait, wait
 
Methods inherited from interface java.util.Map
equals, hashCode
 

Constructor Detail

TransactionalMap

protected TransactionalMap(java.util.Map<java.lang.Object,java.lang.Object> base)
Method Detail

abort

public void abort()
Undo all changes made since the map was created or since last commit or abort.


clear

public void clear()
Clear this map (an anti-object is inserted for each entry present in the backed map).

Specified by:
clear in interface java.util.Map<java.lang.Object,java.lang.Object>
Overrides:
clear in class java.util.HashMap<java.lang.Object,java.lang.Object>

commit

public void commit()
Commit all changes made since the map was created or since last commit or abort. All changes are propagated to the backing map.


containsKey

public boolean containsKey(java.lang.Object key)
Specified by:
containsKey in interface java.util.Map<java.lang.Object,java.lang.Object>
Overrides:
containsKey in class java.util.HashMap<java.lang.Object,java.lang.Object>

get

public java.lang.Object get(java.lang.Object key)
Specified by:
get in interface java.util.Map<java.lang.Object,java.lang.Object>
Overrides:
get in class java.util.HashMap<java.lang.Object,java.lang.Object>

remove

public java.lang.Object remove(java.lang.Object key)
Specified by:
remove in interface java.util.Map<java.lang.Object,java.lang.Object>
Overrides:
remove in class java.util.HashMap<java.lang.Object,java.lang.Object>

size

public int size()
Specified by:
size in interface java.util.Map<java.lang.Object,java.lang.Object>
Overrides:
size in class java.util.HashMap<java.lang.Object,java.lang.Object>

containsValue

public boolean containsValue(java.lang.Object val)
Specified by:
containsValue in interface java.util.Map<java.lang.Object,java.lang.Object>
Overrides:
containsValue in class java.util.HashMap<java.lang.Object,java.lang.Object>

entrySet

public java.util.Set<java.util.Map.Entry<java.lang.Object,java.lang.Object>> entrySet()
Specified by:
entrySet in interface java.util.Map<java.lang.Object,java.lang.Object>
Overrides:
entrySet in class java.util.HashMap<java.lang.Object,java.lang.Object>

isEmpty

public boolean isEmpty()
Specified by:
isEmpty in interface java.util.Map<java.lang.Object,java.lang.Object>
Overrides:
isEmpty in class java.util.HashMap<java.lang.Object,java.lang.Object>

keySet

public java.util.Set<java.lang.Object> keySet()
Specified by:
keySet in interface java.util.Map<java.lang.Object,java.lang.Object>
Overrides:
keySet in class java.util.HashMap<java.lang.Object,java.lang.Object>

put

public java.lang.Object put(java.lang.Object key,
                            java.lang.Object value)
Specified by:
put in interface java.util.Map<java.lang.Object,java.lang.Object>
Overrides:
put in class java.util.HashMap<java.lang.Object,java.lang.Object>

putAll

public void putAll(java.util.Map<? extends java.lang.Object,? extends java.lang.Object> t)
Specified by:
putAll in interface java.util.Map<java.lang.Object,java.lang.Object>
Overrides:
putAll in class java.util.HashMap<java.lang.Object,java.lang.Object>

values

public java.util.Collection<java.lang.Object> values()
Specified by:
values in interface java.util.Map<java.lang.Object,java.lang.Object>
Overrides:
values in class java.util.HashMap<java.lang.Object,java.lang.Object>

getEntryIterator

protected java.util.Iterator getEntryIterator()

getKeyIterator

protected java.util.Iterator<java.lang.Object> getKeyIterator()

getValueIterator

protected java.util.Iterator<java.lang.Object> getValueIterator()


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