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1   /*
2    * Copyright (c) 2010.  The Apache Software Foundation
3    *
4    * Licensed to the Apache Software Foundation (ASF) under one
5    * or more contributor license agreements.  See the NOTICE file
6    * distributed with this work for additional information
7    * regarding copyright ownership.  The ASF licenses this file
8    * to you under the Apache License, Version 2.0 (the
9    * "License"); you may not use this file except in compliance
10   * with the License.  You may obtain a copy of the License at
11   *
12   *     http://www.apache.org/licenses/LICENSE-2.0
13   *
14   * Unless required by applicable law or agreed to in writing, software
15   * distributed under the License is distributed on an "AS IS" BASIS,
16   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
17   * See the License for the specific language governing permissions and
18   * limitations under the License.
19   */
20  
21  package org.apache.hadoop.hbase.hbql.impl;
22  
23  import org.apache.hadoop.hbase.hbql.client.HBqlException;
24  import org.apache.hadoop.hbase.hbql.util.Maps;
25  
26  import java.util.Map;
27  import java.util.NavigableMap;
28  
29  public abstract class ValueMap<T> extends Value {
30  
31      private final Map<String, CurrentAndVersionValue<T>> currentAndVersionMap = Maps.newHashMap();
32  
33      protected ValueMap(final String name) throws HBqlException {
34          super(name);
35      }
36  
37      public Map<String, CurrentAndVersionValue<T>> getCurrentAndVersionMap() {
38          return this.currentAndVersionMap;
39      }
40  
41      private CurrentAndVersionValue<T> getMapValue(final String mapKey) throws HBqlException {
42  
43          CurrentAndVersionValue<T> hvalue = this.getCurrentAndVersionMap().get(mapKey);
44          if (hvalue == null) {
45              hvalue = new CurrentAndVersionValue<T>(null);
46              this.getCurrentAndVersionMap().put(mapKey, hvalue);
47          }
48          return hvalue;
49      }
50  
51      public void setCurrentValueMap(final long timestamp, final String mapKey, final T val) throws HBqlException {
52          this.getMapValue(mapKey).setCurrentValue(timestamp, val);
53      }
54  
55      /*
56      public Map<Long, T> getVersionMap(final String name, final boolean createIfNull) throws HBqlException {
57          return this.getMapValue(name).getVersionMap(createIfNull);
58      }
59      */
60      public void setVersionMap(final String name, final NavigableMap<Long, T> val) throws HBqlException {
61          this.getMapValue(name).setVersionMap(val);
62      }
63  }