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------------------------------------------------------------
revno: 210
committer: Andrea Corbellini <andrea.corbellini@xxxxxxxxxxx>
branch nick: trunk
timestamp: Sun 2009-02-08 13:32:01 +0100
message:
  Add a __contains__ method for databases.
  
  Developers can now check if a key is present in a database with a fast 
  and safe way using a code like 'key in database'.
modified:
  beeseek/database/base.py
  beeseek/database/nested.py
    ------------------------------------------------------------
    revno: 208.1.18
    committer: Andrea Corbellini <andrea.corbellini@xxxxxxxxxxx>
    branch nick: database-__contains__
    timestamp: Sat 2009-02-07 14:09:42 +0100
    message:
      Add __contains__ for nested databases.
    modified:
      beeseek/database/nested.py
    ------------------------------------------------------------
    revno: 208.1.17
    committer: Andrea Corbellini <andrea.corbellini@xxxxxxxxxxx>
    branch nick: database-__contains__
    timestamp: Sat 2009-02-07 14:07:58 +0100
    message:
      Add __contains__ for FileDatabase class.
    modified:
      beeseek/database/base.py
    ------------------------------------------------------------
    revno: 208.1.16
    committer: Andrea Corbellini <andrea.corbellini@xxxxxxxxxxx>
    branch nick: database-__contains__
    timestamp: Sat 2009-02-07 14:05:59 +0100
    message:
      Update interface.
    modified:
      beeseek/database/base.py

=== modified file 'beeseek/database/base.py'
--- beeseek/database/base.py	2009-02-06 17:47:23 +0000
+++ beeseek/database/base.py	2009-02-07 13:07:58 +0000
@@ -32,6 +32,9 @@
     def __getitem__(self, name):
         """Return the specified item."""
 
+    def __contains__(self, name):
+        """Return true if the database has the given key."""
+
     def __setitem__(self, name, value):
         """Store the item."""
 
@@ -124,6 +127,13 @@
         finally:
             self._lock.release()
 
+    def __contains__(self, name):
+        self._lock.acquire()
+        try:
+            return bool(self._get_reference(name))
+        finally:
+            self._lock.release()
+
     def _find_reference(self, key):
         index_file = self._index
         index_file.seek(self._start)

=== modified file 'beeseek/database/nested.py'
--- beeseek/database/nested.py	2009-02-05 17:19:24 +0000
+++ beeseek/database/nested.py	2009-02-07 13:09:42 +0000
@@ -66,6 +66,13 @@
         finally:
             self._lock.release()
 
+    def __contains__(self, name):
+        self._lock.acquire()
+        try:
+            return name in self._get_file(name)
+        finally:
+            self._lock.release()
+
     def __setitem__(self, name, values):
         self._lock.acquire()
         try:



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