Coverage Report

Coverage Report - org.apache.giraph.types.ops.TypeOps

Classes in this File

 /*
  * 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.giraph.types.ops;
 
 
 /**
  * Type operations, allowing working generically with mutable types,
  * but still having efficient code.
  * For example, by reducing object allocation via reuse.
  *
  * Use enum singleton pattern, having single enum value - INSTANCE.
  * Serialization code depends on implementations being enums.
  *
  * @param <T> Type
  */
 public interface TypeOps<T> {
   /**
    * Class object for generic type T.
    * @return Class&lt;T&gt; object
    */
   Class<T> getTypeClass();
   /**
    * Create new instance of type T.
    * @return new instance
    */
   T create();
   /**
    * Create a copy of passed object
    * @param from Object to copy
    * @return Copy
    */
   T createCopy(T from);
   /**
    * Copies the value from the second argument into the first.
    * @param to Object into which the value should be copied
    * @param from Value of object to be copied
    */
   void set(T to, T from);
 }

1		/*
2		* Licensed to the Apache Software Foundation (ASF) under one
3		* or more contributor license agreements. See the NOTICE file
4		* distributed with this work for additional information
5		* regarding copyright ownership. The ASF licenses this file
6		* to you under the Apache License, Version 2.0 (the
7		* "License"); you may not use this file except in compliance
8		* with the License. You may obtain a copy of the License at
9		*
10		* http://www.apache.org/licenses/LICENSE-2.0
11		*
12		* Unless required by applicable law or agreed to in writing, software
13		* distributed under the License is distributed on an "AS IS" BASIS,
14		* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15		* See the License for the specific language governing permissions and
16		* limitations under the License.
17		*/
18		package org.apache.giraph.types.ops;
19
20
21		/**
22		* Type operations, allowing working generically with mutable types,
23		* but still having efficient code.
24		* For example, by reducing object allocation via reuse.
25		*
26		* Use enum singleton pattern, having single enum value - INSTANCE.
27		* Serialization code depends on implementations being enums.
28		*
29		* @param <T> Type
30		*/
31		public interface TypeOps<T> {
32		/**
33		* Class object for generic type T.
34		* @return Class<T> object
35		*/
36		Class<T> getTypeClass();
37		/**
38		* Create new instance of type T.
39		* @return new instance
40		*/
41		T create();
42		/**
43		* Create a copy of passed object
44		* @param from Object to copy
45		* @return Copy
46		*/
47		T createCopy(T from);
48		/**
49		* Copies the value from the second argument into the first.
50		* @param to Object into which the value should be copied
51		* @param from Value of object to be copied
52		*/
53		void set(T to, T from);
54		}