ch.agent.crnickl.mongodb

Class MongoDB

java.lang.Object

ch.agent.crnickl.mongodb.MongoDB

public class MongoDB
extends Object

MongoDB is a singleton encapsulating the MongoDB connection and the base collections used by CrNiCKL.

Author:

Jean-Paul Vetterli

Field Summary

Fields

Modifier and Type	Field and Description
static String	MONGODB_DB
static String	MONGODB_HOST
static String	MONGODB_PASSWORD
static String	MONGODB_PORT
static String	MONGODB_USER
static String	MONGODB_WRITE_CONCERN

Constructor Summary

Constructors

Constructor and Description
MongoDB(ch.agent.crnickl.api.Database database, ch.agent.crnickl.api.DatabaseConfiguration configuration) Construct a MongoDB session.

Method Summary

Methods

Modifier and Type	Method and Description
void	close(boolean ignoreException) Close the MongoDB connection if it is open.
void	commit() Operation not supported by MongoDB.
com.mongodb.DBCollection	getAttributes()
com.mongodb.DBCollection	getChronicles()
com.mongodb.DBCollection	getCollection(ch.agent.crnickl.api.Surrogate s)
static MongoDB	getInstance() Return the MongoDB connection.
com.mongodb.DBCollection	getProperties()
com.mongodb.DBCollection	getSchemas()
com.mongodb.DBCollection	getSeries()
String	getUser()
com.mongodb.DBCollection	getValueTypes()
void	rollback() Operation not supported by MongoDB.
String	toString() Return a string displaying the session with the connection and the user id.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

MONGODB_HOST

public static final String MONGODB_HOST

See Also:

Constant Field Values

MONGODB_PORT

public static final String MONGODB_PORT

See Also:

Constant Field Values

MONGODB_DB

public static final String MONGODB_DB

See Also:

Constant Field Values

MONGODB_WRITE_CONCERN

public static final String MONGODB_WRITE_CONCERN

See Also:

Constant Field Values

MONGODB_USER

public static final String MONGODB_USER

See Also:

Constant Field Values

MONGODB_PASSWORD

public static final String MONGODB_PASSWORD

See Also:

Constant Field Values

Constructor Detail

MongoDB

public MongoDB(ch.agent.crnickl.api.Database database,
       ch.agent.crnickl.api.DatabaseConfiguration configuration)
        throws ch.agent.crnickl.T2DBException

Construct a MongoDB session. This constructor can be invoked only once.

Parameters:

configuration - a database configuration

Throws:

ch.agent.crnickl.T2DBException

Method Detail

getInstance

public static MongoDB getInstance()

Return the MongoDB connection.

Returns:

the MongoDB connection

close

public void close(boolean ignoreException)
           throws ch.agent.crnickl.T2DBException

Close the MongoDB connection if it is open.

Throws:

ch.agent.crnickl.T2DBException

commit

public void commit()
            throws ch.agent.crnickl.T2DBException

Operation not supported by MongoDB. Always throws an exception.

Throws:

ch.agent.crnickl.T2DBException

rollback

public void rollback()
              throws ch.agent.crnickl.T2DBException

Operation not supported by MongoDB. Always throws an exception.

Throws:

ch.agent.crnickl.T2DBException

getUser

public String getUser()

getValueTypes

public com.mongodb.DBCollection getValueTypes()

getProperties

public com.mongodb.DBCollection getProperties()

getSchemas

public com.mongodb.DBCollection getSchemas()

getChronicles

public com.mongodb.DBCollection getChronicles()

getSeries

public com.mongodb.DBCollection getSeries()

getAttributes

public com.mongodb.DBCollection getAttributes()

getCollection

public com.mongodb.DBCollection getCollection(ch.agent.crnickl.api.Surrogate s)
                                       throws ch.agent.crnickl.T2DBException

Throws:

ch.agent.crnickl.T2DBException

toString

public String toString()

Return a string displaying the session with the connection and the user id.

Overrides:

toString in class Object

Returns:

a string displaying the session