org.omg.PortableServer

Class ThreadPolicyValue

java.lang.Object

org.omg.PortableServer.ThreadPolicyValue

All Implemented Interfaces:

Serializable, IDLEntity

public class ThreadPolicyValue
extends Object
implements Serializable, IDLEntity

Defines the possible values for the POA thread policy. This enumeration can obtain the following values:

• ORB_CTRL_MODEL Each object in POA has a separate serving thread and a separate server socket, listening on the objects individual port. Additionally, when the request is accepted, it is also served in a separate thread, so several requests to the same object can be processed in parallel. The servant can always get the Id and POA of the object it is currently serving by invoking Servant._object_id() and Servant._poa(). These two methods use thread to data map and must work correctly even then the servant code is executed in several parallel threads.
• SINGLE_THREAD_MODEL All objects in POA share the same server socket and are served in the same thread. This model is applicable when the number of objects is greater than the number of threads and (or) ports, supported by the system.

OMG also defines a MAIN_THREAD_MODEL, currently not supported by the java API.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
static int	_ORB_CTRL_MODEL The possible value of this enumeration (ORB_CTRL_MODEL).
static int	_SINGLE_THREAD_MODEL The possible value of this enumeration (SINGLE_THREAD_MODEL).
static ThreadPolicyValue	ORB_CTRL_MODEL An instance of ThreadPolicyValue, initialized to ORB_CTRL_MODEL.
static ThreadPolicyValue	SINGLE_THREAD_MODEL An instance of ThreadPolicyValue, initialized to SINGLE_THREAD_MODEL.

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	ThreadPolicyValue(int a_value) Normally, no new instances are required, so the constructor is protected.

Method Summary

Methods

Modifier and Type	Method and Description
static ThreadPolicyValue	from_int(int code) Returns the ThreadPolicyValue, matching the given integer constant.
String	toString() Returns a short string representation.
int	value() Returns the integer code of the enumeration value.

Methods inherited from class java.lang.Object

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

Field Detail

_ORB_CTRL_MODEL

public static final int _ORB_CTRL_MODEL

The possible value of this enumeration (ORB_CTRL_MODEL).

See Also:

Constant Field Values

ORB_CTRL_MODEL

public static final ThreadPolicyValue ORB_CTRL_MODEL

An instance of ThreadPolicyValue, initialized to ORB_CTRL_MODEL.

_SINGLE_THREAD_MODEL

public static final int _SINGLE_THREAD_MODEL

The possible value of this enumeration (SINGLE_THREAD_MODEL).

See Also:

Constant Field Values

SINGLE_THREAD_MODEL

public static final ThreadPolicyValue SINGLE_THREAD_MODEL

An instance of ThreadPolicyValue, initialized to SINGLE_THREAD_MODEL.

Constructor Detail

ThreadPolicyValue

protected ThreadPolicyValue(int a_value)

Normally, no new instances are required, so the constructor is protected.

Method Detail

from_int

public static ThreadPolicyValue from_int(int code)

Returns the ThreadPolicyValue, matching the given integer constant.

Parameters:

code - one of _ORB_CTRL_MODEL, _SINGLE_THREAD_MODEL.

Returns:

one of ORB_CTRL_MODEL, SINGLE_THREAD_MODEL.

Throws:

BAD_PARAM - if the parameter is not one of the valid values.

toString

public String toString()

Returns a short string representation.

Overrides:

toString in class Object

Returns:

the name of the current enumeration value.

See Also:

Object.getClass(), Object.hashCode(), Class.getName(), Integer.toHexString(int)

value

public int value()

Returns the integer code of the enumeration value.

Returns:

one of ORB_CTRL_MODEL, SINGLE_THREAD_MODEL.