Coverage Report - com.allanbank.mongodb.builder.Index
 
Classes in this File Line Coverage Branch Coverage Complexity
Index
77%
7/9
N/A
1
 
 1  
 /*
 2  
  * #%L
 3  
  * Index.java - mongodb-async-driver - Allanbank Consulting, Inc.
 4  
  * %%
 5  
  * Copyright (C) 2011 - 2014 Allanbank Consulting, Inc.
 6  
  * %%
 7  
  * Licensed under the Apache License, Version 2.0 (the "License");
 8  
  * you may not use this file except in compliance with the License.
 9  
  * You may obtain a copy of the License at
 10  
  * 
 11  
  *      http://www.apache.org/licenses/LICENSE-2.0
 12  
  * 
 13  
  * Unless required by applicable law or agreed to in writing, software
 14  
  * distributed under the License is distributed on an "AS IS" BASIS,
 15  
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 16  
  * See the License for the specific language governing permissions and
 17  
  * limitations under the License.
 18  
  * #L%
 19  
  */
 20  
 
 21  
 package com.allanbank.mongodb.builder;
 22  
 
 23  
 import com.allanbank.mongodb.bson.element.IntegerElement;
 24  
 import com.allanbank.mongodb.bson.element.StringElement;
 25  
 
 26  
 /**
 27  
  * Provides the ability to easily specify the index type of a field within an
 28  
  * index specification.
 29  
  * 
 30  
  * @api.yes This class is part of the driver's API. Public and protected members
 31  
  *          will be deprecated for at least 1 non-bugfix release (version
 32  
  *          numbers are <major>.<minor>.<bugfix>) before being
 33  
  *          removed or modified.
 34  
  * @copyright 2012-2013, Allanbank Consulting, Inc., All Rights Reserved
 35  
  */
 36  
 public final class Index {
 37  
 
 38  
     /** The value to indicate an ascending index order. */
 39  
     public static final int ASCENDING = Sort.ASCENDING;
 40  
 
 41  
     /** The value to indicate an descending index order. */
 42  
     public static final int DESCENDING = Sort.DESCENDING;
 43  
 
 44  
     /** The value for the {@value} index. */
 45  
     public static final String GEO_2D_INDEX_NAME = "2d";
 46  
 
 47  
     /** The value for the {@value} index. */
 48  
     public static final String GEO_2DSPHERE_INDEX_NAME = "2dsphere";
 49  
 
 50  
     /** The value for the {@value} index. */
 51  
     public static final String GEO_HAYSTACK_INDEX_NAME = "geoHaystack";
 52  
 
 53  
     /** The value for the {@value} index. */
 54  
     public static final String HASHED_INDEX_NAME = "hashed";
 55  
 
 56  
     /** The value for the {@value} index. */
 57  
     public static final String TEXT_INDEX_NAME = "text";
 58  
 
 59  
     /**
 60  
      * Creates an ascending order specification, e.g.,
 61  
      * <tt>{ &lt;field&gt; : 1 }</tt>.
 62  
      * <p>
 63  
      * This method is equivalent to {@link Sort#asc(String)} method.
 64  
      * </p>
 65  
      * 
 66  
      * @param field
 67  
      *            The field to create the ascending index on.
 68  
      * @return The ascending sort specification.
 69  
      */
 70  
     public static IntegerElement asc(final String field) {
 71  102
         return Sort.asc(field);
 72  
     }
 73  
 
 74  
     /**
 75  
      * Creates an descending order specification, e.g.,
 76  
      * <tt>{ &lt;field&gt; : -1 }</tt>.
 77  
      * <p>
 78  
      * This method is equivalent to the {@link Sort#desc(String)} method.
 79  
      * </p>
 80  
      * 
 81  
      * @param field
 82  
      *            The field to create the descending index on.
 83  
      * @return The descending sort specification.
 84  
      */
 85  
     public static IntegerElement desc(final String field) {
 86  11
         return Sort.desc(field);
 87  
     }
 88  
 
 89  
     /**
 90  
      * Creates an 2D index specification, e.g.,
 91  
      * <tt>{ &lt;field&gt; : "2d" }</tt>.
 92  
      * 
 93  
      * @param field
 94  
      *            The field to create the '2d' index on.
 95  
      * @return The 2D index specification.
 96  
      */
 97  
     public static StringElement geo2d(final String field) {
 98  2
         return new StringElement(field, GEO_2D_INDEX_NAME);
 99  
     }
 100  
 
 101  
     /**
 102  
      * Creates an 2D Sphere index specification, e.g.,
 103  
      * <tt>{ &lt;field&gt; : "2dsphere" }</tt>.
 104  
      * 
 105  
      * @param field
 106  
      *            The field to create the '2dsphere' index on.
 107  
      * @return The 2D Sphere index specification.
 108  
      * @since MongoDB 2.4
 109  
      */
 110  
     public static StringElement geo2dSphere(final String field) {
 111  2
         return new StringElement(field, GEO_2DSPHERE_INDEX_NAME);
 112  
     }
 113  
 
 114  
     /**
 115  
      * Creates a haystack index specification, e.g.,
 116  
      * <tt>{ &lt;field&gt; : "geoHaystack" }</tt>.
 117  
      * 
 118  
      * @param field
 119  
      *            The field to create the 'geoHaystack' index on.
 120  
      * @return The 2D Sphere index specification.
 121  
      * @see <a
 122  
      *      href="http://docs.mongodb.org/manual/applications/geohaystack/">Haystack
 123  
      *      Index Documentation</a>
 124  
      */
 125  
     public static StringElement geoHaystack(final String field) {
 126  1
         return new StringElement(field, GEO_HAYSTACK_INDEX_NAME);
 127  
     }
 128  
 
 129  
     /**
 130  
      * Creates an 'hashed' index specification, e.g.,
 131  
      * <tt>{ &lt;field&gt; : "hashed" }</tt>.
 132  
      * 
 133  
      * @param field
 134  
      *            The field to create the 'hashed' index on.
 135  
      * @return The 'hashed' index specification.
 136  
      * @since MongoDB 2.4
 137  
      */
 138  
     public static StringElement hashed(final String field) {
 139  2
         return new StringElement(field, HASHED_INDEX_NAME);
 140  
     }
 141  
 
 142  
     /**
 143  
      * Creates an 'text' index specification, e.g.,
 144  
      * <tt>{ &lt;field&gt; : "text" }</tt>.
 145  
      * <p>
 146  
      * <b>Note:</b> MongoDB Inc. considers text indexes to be an experimental
 147  
      * feature in the 2.4 release. Use with <b>extreme</b> caution. At a minimum
 148  
      * make sure you have read the <a
 149  
      * href="http://docs.mongodb.org/manual/release-notes/2.4/#text-indexes"
 150  
      * >MongoDB Text Index Documentation</a>.
 151  
      * </p>
 152  
      * 
 153  
      * @param field
 154  
      *            The field to create the 'text' index on.
 155  
      * @return The 'text' index specification.
 156  
      * @since MongoDB 2.4
 157  
      * @see <a
 158  
      *      href="http://docs.mongodb.org/manual/release-notes/2.4/#text-indexes">MongoDB
 159  
      *      Text Index Documentation</a>
 160  
      */
 161  
     public static StringElement text(final String field) {
 162  2
         return new StringElement(field, TEXT_INDEX_NAME);
 163  
     }
 164  
 
 165  
     /**
 166  
      * Creates a new Sort.
 167  
      */
 168  
     private Index() {
 169  0
         super();
 170  0
     }
 171  
 }