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ReadPreference.java
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ReadPreference.java
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/**
* Copyright (c) 2008 - 2011 10gen, Inc. <http://10gen.com>
*
* Licensed 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 com.mongodb;
import java.util.*;
public class ReadPreference {
public static class PrimaryReadPreference extends ReadPreference {
private PrimaryReadPreference() {}
@Override
public String toString(){
return "ReadPreference.PRIMARY" ;
}
}
public static class SecondaryReadPreference extends ReadPreference {
private SecondaryReadPreference() {}
@Override
public String toString(){
return "ReadPreference.SECONDARY";
}
}
public static class TaggedReadPreference extends ReadPreference {
public TaggedReadPreference( DBObject tags ) {
_tags = tags;
}
public TaggedReadPreference( Map<String, String> tags ) {
_tags = new BasicDBObject( tags );
}
public DBObject getTags(){
return _tags;
}
@Override
public String toString(){
return getTags().toString();
}
private final DBObject _tags;
}
public static ReadPreference PRIMARY = new PrimaryReadPreference();
public static ReadPreference SECONDARY = new SecondaryReadPreference();
public static ReadPreference withTags(Map<String, String> tags) {
return new TaggedReadPreference( tags );
}
public static ReadPreference withTags( final DBObject tags ) {
return new TaggedReadPreference( tags );
}
}