org.apache.tinkerpop.gremlin.driver.remote

Class DriverRemoteConnection

java.lang.Object

org.apache.tinkerpop.gremlin.driver.remote.DriverRemoteConnection

All Implemented Interfaces:

AutoCloseable, RemoteConnection

public class DriverRemoteConnection
extends Object
implements RemoteConnection

A RemoteConnection implementation for Gremlin Server. Each DriverServerConnection is bound to one graph instance hosted in Gremlin Server.

Author:

Stephen Mallette (http://stephen.genoprime.com)

Field Summary

Fields

Modifier and Type	Field and Description
static String	GREMLIN_REMOTE_DRIVER_CLUSTERFILE
static String	GREMLIN_REMOTE_DRIVER_SOURCENAME

Constructor Summary

Constructors

Constructor and Description
DriverRemoteConnection(Configuration conf)

Method Summary

Modifier and Type	Method and Description
void	close()
<E> RemoteTraversal<?,E>	submit(Bytecode bytecode) Submits Traversal Bytecode to a server and returns a Traversal.
<E> Iterator<Traverser.Admin<E>>	submit(Traversal<?,E> t)
String	toString()
static DriverRemoteConnection	using(Cluster cluster) Creates a DriverRemoteConnection from an existing Cluster instance.
static DriverRemoteConnection	using(Cluster cluster, String remoteTraversalSourceName) Creates a DriverRemoteConnection from an existing Cluster instance.
static DriverRemoteConnection	using(Configuration conf) Creates a DriverRemoteConnection using an Apache Configuration object.
static DriverRemoteConnection	using(String clusterConfFile) Creates a DriverRemoteConnection using a new Cluster instance created from the supplied configuration file.
static DriverRemoteConnection	using(String clusterConfFile, String remoteTraversalSourceName) Creates a DriverRemoteConnection using a new Cluster instance created from the supplied configuration file.

Methods inherited from class java.lang.Object

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

Field Detail

GREMLIN_REMOTE_DRIVER_CLUSTERFILE

public static final String GREMLIN_REMOTE_DRIVER_CLUSTERFILE

See Also:

Constant Field Values

GREMLIN_REMOTE_DRIVER_SOURCENAME

public static final String GREMLIN_REMOTE_DRIVER_SOURCENAME

See Also:

Constant Field Values

Constructor Detail

DriverRemoteConnection

public DriverRemoteConnection(Configuration conf)

Method Detail

using

public static DriverRemoteConnection using(Cluster cluster)

Creates a DriverRemoteConnection from an existing Cluster instance. When close() is called, the Cluster is left open for the caller to close. By default, this method will bind the RemoteConnection to a graph on the server named "graph".

using

public static DriverRemoteConnection using(Cluster cluster,
                                           String remoteTraversalSourceName)

Creates a DriverRemoteConnection from an existing Cluster instance. When close() is called, the Cluster is left open for the caller to close.

using

public static DriverRemoteConnection using(String clusterConfFile)

Creates a DriverRemoteConnection using a new Cluster instance created from the supplied configuration file. When close() is called, this new Cluster is also closed. By default, this method will bind the RemoteConnection to a graph on the server named "graph".

using

public static DriverRemoteConnection using(String clusterConfFile,
                                           String remoteTraversalSourceName)

Creates a DriverRemoteConnection using a new Cluster instance created from the supplied configuration file. When close() is called, this new Cluster is also closed.

using

public static DriverRemoteConnection using(Configuration conf)

Creates a DriverRemoteConnection using an Apache Configuration object. This method of creation is typically used by RemoteGraph when being constructed via GraphFactory. The Configuration object should contain one of two required keys, either: clusterConfigurationFile or clusterConfiguration. The clusterConfigurationFile key is a pointer to a file location containing a configuration for a Cluster. The clusterConfiguration should contain the actual contents of a configuration that would be used by a Cluster. This configuration may also contain the optional, but likely necessary, remoteTraversalSourceName which tells the DriverServerConnection which graph on the server to bind to.

submit

public <E> Iterator<Traverser.Admin<E>> submit(Traversal<?,E> t)
                                        throws RemoteConnectionException

Specified by:

submit in interface RemoteConnection

Throws:

RemoteConnectionException

submit

public <E> RemoteTraversal<?,E> submit(Bytecode bytecode)
                                throws RemoteConnectionException

Description copied from interface: RemoteConnection

Submits Traversal Bytecode to a server and returns a Traversal. The Traversal is an abstraction over two types of results that can be returned as part of the response from the server: the results of the Traversal itself and the the side-effects that it produced.

Specified by:

submit in interface RemoteConnection

Throws:

RemoteConnectionException

close

public void close()
           throws Exception

Specified by:

close in interface AutoCloseable

Throws:

Exception

toString

public String toString()

Overrides:

toString in class Object