svn commit: r891983 [5/47] - in /lucene/mahout/trunk: ./ core/ core/src/main/java/org/apache/mahout/cf/taste/hadoop/item/ core/src/main/java/org/apache/mahout/clustering/ core/src/main/java/org/apache/mahout/clustering/canopy/ core/src/main/java/org/ap...

[gs...@apache.org]

Added: lucene/mahout/trunk/math/src/main/java/org/apache/mahout/math/PersistentObject.java
URL: http://svn.apache.org/viewvc/lucene/mahout/trunk/math/src/main/java/org/apache/mahout/math/PersistentObject.java?rev=891983&view=auto
==============================================================================
--- lucene/mahout/trunk/math/src/main/java/org/apache/mahout/math/PersistentObject.java (added)
+++ lucene/mahout/trunk/math/src/main/java/org/apache/mahout/math/PersistentObject.java Thu Dec 17 23:22:16 2009
@@ -0,0 +1,40 @@
+/*
+Copyright 1999 CERN - European Organization for Nuclear Research.
+Permission to use, copy, modify, distribute and sell this software and its documentation for any purpose 
+is hereby granted without fee, provided that the above copyright notice appear in all copies and 
+that both that copyright notice and this permission notice appear in supporting documentation. 
+CERN makes no representations about the suitability of this software for any purpose. 
+It is provided "as is" without expressed or implied warranty.
+*/
+package org.apache.mahout.math;
+
+/**
+ * This empty class is the common root for all persistent capable classes.
+ * If this class inherits from <tt>java.lang.Object</tt> then all subclasses are serializable with the standard Java serialization mechanism.
+ * If this class inherits from <tt>com.objy.db.app.ooObj</tt> then all subclasses are <i>additionally</i> serializable with the Objectivity ODBMS persistance mechanism.
+ * Thus, by modifying the inheritance of this class the entire tree of subclasses can be switched to Objectivity compatibility (and back) with minimum effort.
+ */
+
+/** @deprecated until unit tests are in place.  Until this time, this class/interface is unsupported. */
+@Deprecated
+public abstract class PersistentObject implements java.io.Serializable, Cloneable {
+
+  /** Not yet commented. */
+  protected PersistentObject() {
+  }
+
+  /**
+   * Returns a copy of the receiver. This default implementation does not nothing except making the otherwise
+   * <tt>protected</tt> clone method <tt>public</tt>.
+   *
+   * @return a copy of the receiver.
+   */
+  @Override
+  public Object clone() {
+    try {
+      return super.clone();
+    } catch (CloneNotSupportedException exc) {
+      throw new InternalError(); //should never happen since we are cloneable
+    }
+  }
+}

Propchange: lucene/mahout/trunk/math/src/main/java/org/apache/mahout/math/PersistentObject.java
------------------------------------------------------------------------------
    svn:eol-style = native

Added: lucene/mahout/trunk/math/src/main/java/org/apache/mahout/math/PlusFunction.java
URL: http://svn.apache.org/viewvc/lucene/mahout/trunk/math/src/main/java/org/apache/mahout/math/PlusFunction.java?rev=891983&view=auto
==============================================================================
--- lucene/mahout/trunk/math/src/main/java/org/apache/mahout/math/PlusFunction.java (added)
+++ lucene/mahout/trunk/math/src/main/java/org/apache/mahout/math/PlusFunction.java Thu Dec 17 23:22:16 2009
@@ -0,0 +1,27 @@
+/**
+ * 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.
+ */
+
+package org.apache.mahout.math;
+
+public class PlusFunction implements BinaryFunction {
+
+  @Override
+  public double apply(double arg1, double arg2) {
+    return arg1 + arg2;
+  }
+
+}

Propchange: lucene/mahout/trunk/math/src/main/java/org/apache/mahout/math/PlusFunction.java
------------------------------------------------------------------------------
    svn:eol-style = native

Added: lucene/mahout/trunk/math/src/main/java/org/apache/mahout/math/PlusWithScaleFunction.java
URL: http://svn.apache.org/viewvc/lucene/mahout/trunk/math/src/main/java/org/apache/mahout/math/PlusWithScaleFunction.java?rev=891983&view=auto
==============================================================================
--- lucene/mahout/trunk/math/src/main/java/org/apache/mahout/math/PlusWithScaleFunction.java (added)
+++ lucene/mahout/trunk/math/src/main/java/org/apache/mahout/math/PlusWithScaleFunction.java Thu Dec 17 23:22:16 2009
@@ -0,0 +1,32 @@
+/**
+ * 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
+ * <p/>
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * <p/>
+ * 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.
+ */
+
+package org.apache.mahout.math;
+
+public class PlusWithScaleFunction implements BinaryFunction {
+
+  private final double scale;
+
+  public PlusWithScaleFunction(double scale) {
+    this.scale = scale;
+  }
+
+  @Override
+  public double apply(double arg1, double arg2) {
+    return arg1 + scale * arg2;
+  }
+}

Propchange: lucene/mahout/trunk/math/src/main/java/org/apache/mahout/math/PlusWithScaleFunction.java
------------------------------------------------------------------------------
    svn:eol-style = native