/**
* Copyright (C) 2010 Lowereast Software
*
* 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.
*/
import java.util.List;
import com.google.inject.Guice;
import com.google.inject.Inject;
import com.google.inject.Injector;
import com.mattinsler.guiceymongo.guice.GuiceyMongo;
import com.mongodb.DBObject;
public class StoredProcedureProxyExample {
public interface PrintQuery {
void print(String message);
}
/*
* You can create server side methods and then use a javascript proxy to call them:
* db.system.js.save({
* _id: 'getData',
* value: function(count) {
* return db.foo.find().limit(count).toArray();
* }
* })
*
* db.system.js.save({
* _id: 'getCount',
* value: function() {
* return db.foo.count();
* }
* })
*
* WARNING: You cannot return a cursor from a server side method
*/
public interface TestQuery {
// this will execute "db.eval(function(count){return getData(count)}, count)"
List<DBObject> getData(int count);
// this will execute "db.eval(function(){return getCount()})"
int getCount();
}
@Inject
StoredProcedureProxyExample(PrintQuery printQuery) {
// will print Hello world on the server
printQuery.print("Hello world");
}
public static void main(String[] args) {
Injector injector = Guice.createInjector(
// create the test configuration
GuiceyMongo.configure(Configurations.Test)
.mapDatabase(Databases.Main).to("test_db"),
// generate a proxy class that calls db.eval using the method
// names and arguments in the proxy interface, using the database
GuiceyMongo.javascriptProxy(PrintQuery.class, Databases.Main),
// choose the configuration to use
GuiceyMongo.chooseConfiguration(Configurations.Test)
);
injector.getInstance(StoredProcedureProxyExample.class);
}
}