stella.parameter
Class AbstractRemoteParameter

java.lang.Object
  util.PropertyContainer
      stella.parameter.AbstractParameter
          stella.parameter.AbstractRemoteParameter

All Implemented Interfaces:

Cloneable, Remote, Parameter, RemoteParameter, ExitCleaning, Initializable, PropertyBearing, RmiCaster

Direct Known Subclasses:

AbstractCCDParameter, AbstractFitsParameter, AbstractRemoteTrigger, AbstractRemoteValue, ExposureCount, ParameterSkeleton, Unique

public abstract class AbstractRemoteParameter
extends AbstractParameter
implements RemoteParameter

A skeleton implementation of a RemoteParameter. This class takes care of proper binding of the parameter to the registry and diverts the remoteGet() method to the Parameter.get() method. Provides also a static method for binding non-subclasses of abstract remote parameter to the registry.

Nested Class Summary

Nested classes/interfaces inherited from class util.PropertyContainer

PropertyContainer.URLResource

Field Summary

protected static boolean	DEFBIND The default auto-binding as a RemoteParameter.
static String	KEY_BIND The key in the Map for auto-binding of the trigger.
private List<RmiListener>	stubs A list of registered rmi listners.

Fields inherited from class stella.parameter.AbstractParameter

KEY_FORMAT, KEY_NAME, KEY_PRESERVE, UNKNOWN

Fields inherited from class util.PropertyContainer

KEY_LISTSEPARATOR, KEY_LOCALECOUNTRY, KEY_LOCALELANGUAGE, KEY_MAPKEYVALUECHAR, KEY_MAPSEPARATOR, KEY_NOINITONCREATE, KEY_RESOURCEBUNDLES

Fields inherited from interface util.PropertyBearing

CONFIG, KEY_CLASS, KEY_URLRESOURCES, KEY_URLUSECONFIG, KEY_URLUSECURRENT, KEY_URLUSEHOME

Constructor Summary

protected

AbstractRemoteParameter(Map prop) Constructs a new remote parameter.

Method Summary

void	addRmiListener(RmiListener ear) Adds a listener for notification on exit.
boolean	bindToRegistry() Binds to registry.
void	exit() Unbinds from registry, if bound.
void	init() Binds this trigger to the registry.
boolean	isValid() Returns true.
Object	remoteGet() The remote edge of this trigger.
void	removeRmiListener(RmiListener ear) Removes a listener.
protected double	rescanned(String key, String old, String newval) If the bind property changed, we deregister from our current binding and re-instantiate a new binding thread.
boolean	unbindFromRegistry() Unbinds from registry.

Methods inherited from class stella.parameter.AbstractParameter

createParameter, delivers, getFormatted, getFormatted, getName, getPreserveFile, getString, getString, register, setName, toString

Methods inherited from class util.PropertyContainer

augment, augment, augment, clone, createFrom, createFrom, createFrom, defaultBoolean, defaultChar, defaultDouble, defaultFloat, defaultInt, defaultLong, defaultObject, defaultObject, defaultProperties, defaultProperty, getAsBoolean, getAsChar, getAsDouble, getAsEnums, getAsFloat, getAsInt, getAsList, getAsLong, getAsMap, getAsMap, getAsObject, getAsObject, getLocalClassLoader, getLocalized, getLocalized, getLocalizedString, getLocalizedString, getProperties, getPropertiesToKey, getPropertiesToKey, getProperty, getResource, getResourceAsStream, getResourceFromKey, getResources, has, isNew, keyCreate, keyCreate, parseObject, reload, reload, removeProperty, setObject, setProperties, setProperty, stringProperties

Methods inherited from class java.lang.Object

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

Methods inherited from interface stella.Parameter

get, set

Methods inherited from interface util.PropertyBearing

defaultBoolean, defaultChar, defaultDouble, defaultFloat, defaultInt, defaultLong, defaultObject, defaultObject, defaultProperties, defaultProperty, getAsBoolean, getAsChar, getAsDouble, getAsFloat, getAsInt, getAsList, getAsLong, getAsMap, getAsObject, getAsObject, getLocalized, getProperties, getProperty, getResource, getResourceAsStream, getResources, has, parseObject, removeProperty, setObject, setProperty, stringProperties

Field Detail

KEY_BIND

public static final String KEY_BIND

The key in the Map for auto-binding of the trigger.

See Also:

Constant Field Values

DEFBIND

protected static final boolean DEFBIND

The default auto-binding as a RemoteParameter.

See Also:

Constant Field Values

stubs

private List<RmiListener> stubs

A list of registered rmi listners.

Constructor Detail

AbstractRemoteParameter

protected AbstractRemoteParameter(Map prop)

Constructs a new remote parameter. Sets the binding properties. Binding is done in the #bind method, which is called only in the init() section.

Method Detail

init

public void init()

Binds this trigger to the registry.

Specified by:

init in interface Initializable

Overrides:

init in class AbstractParameter

exit

public void exit()

Unbinds from registry, if bound.

Specified by:

exit in interface ExitCleaning

Overrides:

exit in class AbstractParameter

rescanned

protected double rescanned(String key,
                           String old,
                           String newval)

If the bind property changed, we deregister from our current binding and re-instantiate a new binding thread.

Overrides:

rescanned in class AbstractParameter

bindToRegistry

public boolean bindToRegistry()
                       throws RemoteException

Binds to registry.

Specified by:

bindToRegistry in interface RmiCaster

Returns:

True if successful.

Throws:

RemoteException

unbindFromRegistry

public boolean unbindFromRegistry()
                           throws RemoteException

Unbinds from registry.

Specified by:

unbindFromRegistry in interface RmiCaster

Returns:

True if successful.

Throws:

RemoteException

remoteGet

public Object remoteGet()
                 throws RemoteException

The remote edge of this trigger.

Specified by:

remoteGet in interface RemoteParameter

Throws:

RemoteException

addRmiListener

public void addRmiListener(RmiListener ear)
                    throws RemoteException

Adds a listener for notification on exit.

Specified by:

addRmiListener in interface RemoteParameter

Throws:

RemoteException

removeRmiListener

public void removeRmiListener(RmiListener ear)
                       throws RemoteException

Removes a listener.

Specified by:

removeRmiListener in interface RemoteParameter

Throws:

RemoteException

isValid

public boolean isValid()
                throws RemoteException

Returns true.

Specified by:

isValid in interface RmiCaster

Throws:

RemoteException