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package com.googlecode.mjorm;
import com.googlecode.mjorm.mql.Statement;
import com.googlecode.mjorm.query.DaoQuery;
import com.mongodb.CommandResult;
import com.mongodb.DB;
import com.mongodb.DBCollection;
import com.mongodb.DBEncoder;
import com.mongodb.DBObject;
import com.mongodb.WriteConcern;
/**
* An interface for working with mapped objects in mongo.
*/
public interface MongoDao {
/**
* Creates a {@link Statement} from the given mql code
* and returns it.
* @param mql the MQL code
* @return the {@link Statement}
*/
Statement createStatement(String mql);
/**
* Creates a {@link DaoQuery} and returns it.
* @return the {@link DaoQuery}
*/
DaoQuery createQuery();
/**
* Creates the object in the given collection.
* @param the type
* @param collection the collection
* @param object the object to create
* @return the created object
*/
T createObject(String collection, T object);
/**
* Creates the object in the given collection.
* @param the type
* @param collection the collection
* @param object the object to create
* @param conern the WriteConcern
* @return the created object
*/
T createObject(String collection, T object, WriteConcern conern);
/**
* Creates the given objects in the given collection.
* @param the type
* @param collection the collection
* @param objects the objects to create
* @return the created objects
*/
T[] createObjects(String collection, T[] objects);
/**
* Creates the given objects in the given collection.
* @param the type
* @param collection the collection
* @param objects the objects to create
* @param conern the WriteConcern
* @return the created objects
*/
T[] createObjects(String collection, T[] objects, WriteConcern conern);
/**
* Maps and returns an object from the given collection.
* @param the type
* @param collection the collection
* @param id the object's id
* @param clazz the object's class
* @return the object read
*/
T readObject(String collection, Object id, Class clazz);
/**
* Maps and returns a objects from the given collection.
* @param the type
* @param collection the collection
* @param ids the object's id
* @param clazz the object's class
* @return the objects read
*/
T[] readObjects(String collection, Object[] ids, Class clazz);
/**
* Updates the object with the given id in the given
* collection.
* @param collection the collection
* @param id the id
* @param o the object
*/
void updateObject(String collection, Object id, Object o);
/**
* Updates the object with the given id in the given
* collection.
* @param collection the collection
* @param id the id
* @param conern the WriteConcern
* @param o the object
*/
void updateObject(String collection, Object id, Object o, WriteConcern concern);
/**
* Deletes the object with the given id from the
* given collection.
* @param collection the collection
* @param id the id
*/
void deleteObject(String collection, Object id);
/**
* Deletes the object with the given id from the
* given collection.
* @param collection the collection
* @param conern the WriteConcern
* @param id the id
*/
void deleteObject(String collection, Object id, WriteConcern concern);
/**
* Deletes the objects matching the given query from
* the given collection.
* @param collection the collection
* @param query the query
*/
void deleteObjects(String collection, DBObject query);
/**
* Deletes the objects matching the given query from
* the given collection.
* @param collection the collection
* @param conern the WriteConcern
* @param query the query
*/
void deleteObjects(String collection, DBObject query, WriteConcern concern);
/**
* Deletes the objects matching the given query from
* the given collection.
* @param collection the collection
* @param ids the ids of the objects to delete
*/
void deleteObjects(String collection, Object[] ids);
/**
* Deletes the objects matching the given query from
* the given collection.
* @param collection the collection
* @param conern the WriteConcern
* @param ids the ids of the objects to delete
*/
void deleteObjects(String collection, Object[] ids, WriteConcern concern);
/**
* Returns a partial object.
* @param the partial object type
* @param collection the collection
* @param id the document's id
* @param name the name
* @param clazz the type
* @return the partial object
*/
T getPartialObject(String collection, Object id, String name, Class clazz);
/**
* Returns a partial object.
* @param the partial object type
* @param collection the collection
* @param query the query
* @param name the name
* @param clazz the type
* @return the partial object
*/
T getPartialObject(String collection, DBObject query, String name, Class clazz);
/**
* Saves a partial object.
* @param the partial object type
* @param collection the collection
* @param id the document's id
* @param name the name
* @param data the data to save
* @param upsert the upsert
*/
void savePartialObject(
String collection, Object id, String name, T data, boolean upsert);
/**
* Saves a partial object.
* @param the partial object type
* @param collection the collection
* @param id the document's id
* @param name the name
* @param data the data to save
* @param upsert the upsert
* @param conern the WriteConcern
*/
void savePartialObject(
String collection, Object id, String name, T data, boolean upsert, WriteConcern concern);
/**
* Saves a partial object.
* @param the partial object type
* @param collection the collection
* @param query the query
* @param name the name
* @param data the data to save
* @param upsert the upsert
* @param conern the WriteConcern
*/
void savePartialObject(
String collection, DBObject query, String name, T data, boolean upsert, WriteConcern concern);
/**
* Deletes a partial object.
* @param collection the collection
* @param id the document's id
* @param name the name
*/
void deletePartialObject(String collection, Object id, String name);
/**
* Deletes a partial object.
* @param collection the collection
* @param id the document's id
* @param name the name
* @param conern the WriteConcern
*/
void deletePartialObject(String collection, Object id, String name, WriteConcern concern);
/**
* Deletes a partial object.
* @param collection the collection
* @param query the query
* @param name the name
*/
void deletePartialObject(String collection, DBObject query, String name);
/**
* Deletes a partial object.
* @param collection the collection
* @param query the query
* @param name the name
* @param conern the WriteConcern
*/
void deletePartialObject(String collection, DBObject query, String name, WriteConcern concern);
/**
* Finds objects by the given example in the given
* collection and returns an {@link ObjectIterator}
* for them.
* @param the object type
* @param collection the collection
* @param example the example
* @param clazz the class
* @return the {@link ObjectIterator}
*/
ObjectIterator findByExample(String collection, T example, Class clazz);
/**
* Maps and returns an {@link ObjectIterator} for objects
* matching the given query in the given collection.
* @param the type
* @param collection the collection
* @param query the query
* @param clazz the java type to map the objects to
* @return the {@link ObjectIterator}
*/
ObjectIterator findObjects(String collection, DBObject query, Class clazz);
/**
* Returns the count of objects matching the given query
* in the given collection.
* @param collection the collection
* @param query the query
* @return the count
*/
long countObjects(String collection, DBObject query);
/**
* Maps and returns a single object matching the given query
* from the given collection.
* @param the type
* @param collection the collection
* @param query the query
* @param clazz the java type to map the objects to
* @return the object, or null if not found
*/
T findObject(String collection, DBObject query, Class clazz);
/**
* Executes the given command.
* @param cmd the command to execute
* @return the result
*/
CommandResult executeCommand(DBObject cmd);
/**
* Executes the given command.
* @param cmd the command to execute
* @return the result
*/
CommandResult executeCommand(String cmd);
/**
* Executes a MapReduce job using the given {@link MapReduceConfiguration}.
* @param collection the collection to run in on
* @param mapReduce the {@link MapReduce}
* @return the {@link MapReduceOutput}
*/
MapReduceResult mapReduce(String collection, MapReduce mapReduce);
/**
* Ensures that an index exists on the given collection.
* @param collection the collection
* @param key the key
* @param background whether or not to build the index in the background
* @param unique if it's a unique index
* @param dropDupes whether or not to drop duplicate documents
*/
void ensureIndex(String collection, String key,
boolean background, boolean unique, boolean dropDupes);
/**
* Ensures that an index exists on the given collection.
* @param collection the collection
* @param keys the keys
* @param background whether or not to build the index in the background
* @param unique if it's a unique index
* @param dropDupes whether or not to drop duplicate documents
*/
void ensureIndex(String collection, DBObject keys,
boolean background, boolean unique, boolean dropDupes);
/**
* Finds and removes the first object matching the query from
* the given collection and returns it.
* @param collection the collection
* @param query the query
* @param clazz the class
* @param fields the fields to populate in the return object
* @return the removed object
*/
T findAndDelete(String collection, DBObject query, DBObject sort, Class clazz, String[] fields);
/**
* Finds and removes the first object matching the query from
* the given collection and returns it.
* @param collection the collection
* @param query the query
* @param clazz the class
* @param fields the fields to populate in the return object
* @return the removed object
*/
T findAndDelete(String collection, DBObject query, DBObject sort, Class clazz);
/**
* Performs a find and modify.
* @param collection the collection
* @param query the query
* @param sort the sort option
* @param update the update object
* @param returnNew whether or not to return the new or old value
* @param upsert create if it doesn't exist
* @param clazz the type
* @return the object
*/
public T findAndModify(
String collection, DBObject query, DBObject sort, DBObject update,
boolean returnNew, boolean upsert, Class clazz);
/**
* Performs a find and modify.
* @param collection the collection
* @param query the query
* @param sort the sort option
* @param update the update object
* @param returnNew whether or not to return the new or old value
* @param upsert create if it doesn't exist
* @param clazz the type
* @param fields the fields to populate in the return object
* @return the object
*/
public T findAndModify(
String collection, DBObject query, DBObject sort, DBObject update,
boolean returnNew, boolean upsert, Class clazz, String[] fields);
public void update(
String collection, DBObject query, DBObject update,
boolean upsert, boolean multi, WriteConcern concern, DBEncoder encoder);
public void update(
String collection, DBObject query, DBObject update,
boolean upsert, boolean multi, WriteConcern concern);
public void update(
String collection, DBObject query, DBObject update,
boolean upsert, boolean multi);
/**
* Returns the underlying {@link DB}.
* @return the {@link DB}
*/
DB getDB();
/**
* Returns a {@link DBCollection} by it's name.
* @param name the name
* @return the {@link DBCollection}
*/
DBCollection getCollection(String name);
}
