svn commit: r746920 - in /lucene/pylucene/trunk: CHANGES Makefile collections.py

[va...@apache.org]

Author: vajda
Date: Mon Feb 23 08:22:38 2009
New Revision: 746920

URL: http://svn.apache.org/viewvc?rev=746920&view=rev
Log:
 - added collections.py module with JavaSet class, a Python java.util.Set

Added:
    lucene/pylucene/trunk/collections.py   (with props)
Modified:
    lucene/pylucene/trunk/CHANGES
    lucene/pylucene/trunk/Makefile

Modified: lucene/pylucene/trunk/CHANGES
URL: http://svn.apache.org/viewvc/lucene/pylucene/trunk/CHANGES?rev=746920&r1=746919&r2=746920&view=diff
==============================================================================
--- lucene/pylucene/trunk/CHANGES (original)
+++ lucene/pylucene/trunk/CHANGES Mon Feb 23 08:22:38 2009
@@ -6,6 +6,7 @@
  - PyLucene with JCC now a subproject of the Apache Lucene project
  - documentation moved to http://lucene.apache.org/pylucene
  - added java.util.Arrays to the build to bridge the Java array/collection gap
+ - added collections.py module with JavaSet class, a Python java.util.Set
  - 
 
 Version 2.3.2 -> 2.4.0

Modified: lucene/pylucene/trunk/Makefile
URL: http://svn.apache.org/viewvc/lucene/pylucene/trunk/Makefile?rev=746920&r1=746919&r2=746920&view=diff
==============================================================================
--- lucene/pylucene/trunk/Makefile (original)
+++ lucene/pylucene/trunk/Makefile Mon Feb 23 08:22:38 2009
@@ -196,6 +196,7 @@
            --mapping java.util.Properties 'getProperty:(Ljava/lang/String;)Ljava/lang/String;' \
            --sequence org.apache.lucene.search.Hits 'length:()I' 'doc:(I)Lorg/apache/lucene/document/Document;' \
            --version $(LUCENE_VER) \
+           --module collections.py \
            --files $(NUM_FILES)
 
 generate: jars

Added: lucene/pylucene/trunk/collections.py
URL: http://svn.apache.org/viewvc/lucene/pylucene/trunk/collections.py?rev=746920&view=auto
==============================================================================
--- lucene/pylucene/trunk/collections.py (added)
+++ lucene/pylucene/trunk/collections.py Mon Feb 23 08:22:38 2009
@@ -0,0 +1,111 @@
+#   Licensed under the Apache License, Version 2.0 (the "License");
+#   you may not use this file except in compliance with the License.
+#   You may obtain a copy of the License at
+#
+#       http://www.apache.org/licenses/LICENSE-2.0
+#
+#   Unless required by applicable law or agreed to in writing, software
+#   distributed under the License is distributed on an "AS IS" BASIS,
+#   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#   See the License for the specific language governing permissions and
+#   limitations under the License.
+
+from lucene import PythonSet, PythonIterator, JavaError
+
+
+class JavaSet(PythonSet):
+
+    def __init__(self, _set):
+        super(JavaSet, self).__init__()
+        self._set = _set
+
+    def __contains__(self, obj):
+        return obj in self._set
+
+    def __iter__(self):
+        return iter(self._set)
+
+    def add(self, obj):
+        if obj not in self._set:
+            self._set.add(obj)
+            return True
+        return False
+
+    def addAll(self, collection):
+        size = len(self._set)
+        self._set.update(collection)
+        return len(self._set) > size
+
+    def clear(self):
+        self._set.clear()
+
+    def contains(self, obj):
+        return obj in self._set
+
+    def containsAll(self, collection):
+        for obj in collection:
+            if obj not in self._set:
+                return False
+        return True
+
+    def equals(self, collection):
+        if type(self) is type(collection):
+            return self._set == collection._set
+        return False
+
+    def isEmpty(self):
+        return len(self._set) == 0
+
+    def iterator(self):
+        class _iterator(PythonIterator):
+            def __init__(_self):
+                super(_iterator, _self).__init__()
+                _self._iterator = iter(self._set)
+            def hasNext(_self):
+                if hasattr(_self, '_next'):
+                    return True
+                try:
+                    _self._next = _self._iterator.next()
+                    return True
+                except StopIteration:
+                    return False
+            def next(_self):
+                if hasattr(_self, '_next'):
+                    next = _self._next
+                    del _self._next
+                else:
+                    next = _self._iterator.next()
+                return next
+        return _iterator()
+            
+    def remove(self, obj):
+        try:
+            self._set.remove(obj)
+            return True
+        except KeyError:
+            return False
+
+    def removeAll(self, collection):
+        result = False
+        for obj in collection:
+            try:
+                self._set.remove(obj)
+                result = True
+            except KeyError:
+                pass
+        return result
+
+    def retainAll(self, collection):
+        result = False
+        for obj in list(self._set):
+            if obj not in c:
+                self._set.remove(obj)
+                result = True
+        return result
+
+    def size(self):
+        return len(self._set)
+
+    def toArray(self):
+        return list(self._set)
+

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