fr.esrf.TangoApi
Class Connection

java.lang.Object
  |
  +--fr.esrf.TangoApi.Connection

Direct Known Subclasses:

Database, DeviceProxy

public class Connection

extends java.lang.Object

Class Description: This class manage device connection for Tango objects. It is an api between user and IDL Device object.

Author:

verdier

Constructor Summary

Connection()
Connection constructor.

Connection(java.lang.String devname)
Connection constructor.

Connection(java.lang.String host, java.lang.String port)
Connection constructor.

Method Summary

DeviceData	command_inout(java.lang.String command) Send a command to a device server.
DeviceData	command_inout(java.lang.String command, DeviceData argin) Send a command to a device server.
fr.esrf.Tango.DevCmdInfo[]	command_list_query() Execute a command_list_query command to a device server.
java.lang.String	get_name() return the device connected name.
java.lang.String	get_tango_host() return the name of connection (host:port)
int	get_timeout() return the timeout value for a device call.
fr.esrf.Tango.DevInfo	info() Execute a info command to a device server.
long	ping() Execute a ping command to a device server.
fr.esrf.Tango.Device	set_timeout(int millis) Change the timeout value for a device call.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Connection

public Connection()
           throws fr.esrf.Tango.DevFailed

Connection constructor. It makes a connection on database server.

Connection

public Connection(java.lang.String host,
                  java.lang.String port)
           throws fr.esrf.Tango.DevFailed

Connection constructor. It makes a connection on database server.

Parameters:

host - host where database is running.

port - port for database connection.

Connection

public Connection(java.lang.String devname)

Connection constructor. It imports the device.

Parameters:

devname - name of the device to be imported.

Method Detail

set_timeout

public fr.esrf.Tango.Device set_timeout(int millis)
                                 throws fr.esrf.Tango.DevFailed

Change the timeout value for a device call.

Parameters:

millis - New value of the timeout in milliseconds.

Throws:

DevFaild - if orb.create_policy throws an org.omg.CORBA.PolicyError exception.

get_timeout

public int get_timeout()

return the timeout value for a device call.

Returns:

the value of the timeout in milliseconds.

command_inout

public DeviceData command_inout(java.lang.String command,
                                DeviceData argin)
                         throws fr.esrf.Tango.DevFailed

Send a command to a device server.

Parameters:

command - Command name to send to the device.

data - argin management object.

Throws:

fr.esrf.Tango.DevFailed -

command_inout

public DeviceData command_inout(java.lang.String command)
                         throws fr.esrf.Tango.DevFailed

Send a command to a device server.

Parameters:

device - Device instance to send the command.

Throws:

fr.esrf.Tango.DevFailed -

ping

public long ping()
          throws fr.esrf.Tango.DevFailed

Execute a ping command to a device server.

Returns:

the elapsed time for ping command in milliseconds.

info

public fr.esrf.Tango.DevInfo info()
                           throws fr.esrf.Tango.DevFailed

Execute a info command to a device server.

command_list_query

public fr.esrf.Tango.DevCmdInfo[] command_list_query()
                                              throws fr.esrf.Tango.DevFailed

Execute a command_list_query command to a device server.

get_name

public java.lang.String get_name()

return the device connected name.

get_tango_host

public java.lang.String get_tango_host()

return the name of connection (host:port)