X-Git-Url: https://git.mdrn.pl/pylucene.git/blobdiff_plain/a2e61f0c04805cfcb8706176758d1283c7e3a55c..aaeed5504b982cf3545252ab528713250aa33eed:/lucene-java-3.5.0/lucene/src/java/org/apache/lucene/index/NoDeletionPolicy.java

diff --git a/lucene-java-3.5.0/lucene/src/java/org/apache/lucene/index/NoDeletionPolicy.java b/lucene-java-3.5.0/lucene/src/java/org/apache/lucene/index/NoDeletionPolicy.java
new file mode 100644
index 0000000..87b3b2e
--- /dev/null
+++ b/lucene-java-3.5.0/lucene/src/java/org/apache/lucene/index/NoDeletionPolicy.java
@@ -0,0 +1,41 @@
+package org.apache.lucene.index;
+
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You 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.
+ */
+
+import java.io.IOException;
+import java.util.List;
+
+/**
+ * An {@link IndexDeletionPolicy} which keeps all index commits around, never
+ * deleting them. This class is a singleton and can be accessed by referencing
+ * {@link #INSTANCE}.
+ */
+public final class NoDeletionPolicy implements IndexDeletionPolicy {
+
+  /** The single instance of this class. */
+  public static final IndexDeletionPolicy INSTANCE = new NoDeletionPolicy();
+  
+  private NoDeletionPolicy() {
+    // keep private to avoid instantiation
+  }
+  
+  public void onCommit(List<? extends IndexCommit> commits) throws IOException {}
+
+  public void onInit(List<? extends IndexCommit> commits) throws IOException {}
+  
+}