Re: [dev] How to create a uno singleton component ?
Hi,
i think i finally did it :-)
the trick is to implement your own SingletonFactory ...
public class SingletonFactory implements XSingleComponentFactory {
private transient LogServiceImpl instance = null;
public Object createInstanceWithArgumentsAndContext(final Object[] args,
final XComponentContext xComponentContext) throws
Exception {
return createInstanceWithContext(xComponentContext);
}
public Object createInstanceWithContext(
final XComponentContext xComponentContext) throws
Exception {
if (this.instance == null)
this.instance = new LogServiceImpl(xComponentContext);
return this.instance;
}
and changing ServiceProvider class:
public class ServiceProvider {
public static XSingleComponentFactory __getComponentFactory(final
String sImplName) {
XSingleComponentFactory xSingleComponentFactory = null;
if (sImplName.equals(LogServiceImpl.class.getName()))
xSingleComponentFactory = new SingletonFactory();
return xSingleComponentFactory;
}
public static boolean __writeRegistryServiceInfo(final XRegistryKey
xRegistryKey) {
try {
final XRegistryKey newKey = xRegistryKey
.createKey(LogServiceImpl.class.getName()
+ /UNO/SINGLETONS/ +
LogServiceImpl._serviceName);
newKey.setStringValue(LogServiceImpl._serviceName);
} catch (final InvalidRegistryException e) {
return false;
}
return
Factory.writeRegistryServiceInfo(LogServiceImpl.class.getName(),
new String[] { LogServiceImpl._serviceName },
xRegistryKey);
}
}
now EqualUnoObjects(oA,oB) returns true ...
oA = CreateUnoService(logging.LogService)
oB = CreateUnoService(logging.LogService)
and generated LogService.class has a static method get(xComponentContext)
Oliver
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Re: [dev] How to create a uno singleton component ?
Hi,
today i started to create my first uno singleton ;-)
idlc, regmerge javamaker seem to work, regview shows me for example:
/ LogService
Value: Type = RG_VALUETYPE_BINARY
Size = 110
Data = version: 1
documentation:
file name:
type class: singleton
type name: logging/LogService
super type count: 1
super type name 0: logging/XLogAccess
field count: 0
method count: 0
reference count: 0
the extension is deployable an i can get an instance, for example:
oContext =
createUnoService(com.sun.star.configuration.bootstrap.BootstrapContext)
oA = oContext.getValueByName(/singletons/logging.LogService)
oB = oContext.getValueByName(/singletons/logging.LogService)
msgbox EqualUnoObjects(oA, oB)
- return's TRUE
Now i see two problems:
1. oA = CreateUnoService(logging.LogService)
oB = CreateUnoService(logging.LogService)
msgbox EqualUnoObjects(oA, oB)
- return's FALSE - do i have 2 instances here ???
2. How can i use the static get(xComponentContext) to obtain the instance,
described here:
http://wiki.services.openoffice.org/wiki/Documentation/DevGuide/ProUNO/C%2B%2B/Mapping_of_Singletons
changing LogServiceImpl.java to a java singleton
private static LogServiceImpl instance = null;
private LogServiceImpl(final XComponentContext xComponentContext) {
}
public static XLogAccess get(final XComponentContext xComponentContext)
{
if (LogServiceImpl.instance == null)
LogServiceImpl.instance = new
LogServiceImpl(xComponentContext);
return LogServiceImpl.instance;
}
will cause an error message: Can not activate the factory for
logging.LogServiceImpl beacause
FactoryHelper can not find a useable constructor
any hints ?
Oliver
code snippet's:
LogService.idl
[...] module logging {
interface XLogAccess;
singleton LogService : XLogAccess;
};
XLogAccess.idl
[...] module logging {
interface XLogAccess : com::sun::star::uno:: XInterface
{
string getLoggerName();
long getLevel();
[...]
};
};
LogServiceImpl.java
public class LogServiceImpl extends ComponentBase implements XServiceInfo,
XLogAccess {
static final String _serviceName = logging.LogService;
public LogServiceImpl(final XComponentContext xComponentContext) {
}
public String getImplementationName() {
return getClass().getName();
}
public boolean supportsService(final String name) {
if (name.equals(LogServiceImpl._serviceName))
return true;
return false;
}
public String[] getSupportedServiceNames() {
return new String[] { LogServiceImpl._serviceName };
}
// XLogAccess
public String getLoggerName() {
return Log.getName();
}
public int getLevel() {
return Log.getLevel();
}
}
ServiceProvider.java
public class ServiceProvider {
public static XSingleServiceFactory __getServiceFactory(
final String sImplName, final XMultiServiceFactory
xMultiFactory,
final XRegistryKey xRegistryKey) {
XSingleServiceFactory xSingleServiceFactory = null;
if (sImplName.equals(LogServiceImpl.class.getName()))
xSingleServiceFactory = FactoryHelper.getServiceFactory(
LogServiceImpl.class,
LogServiceImpl._serviceName,
xMultiFactory, xRegistryKey);
return xSingleServiceFactory;
}
public static boolean __writeRegistryServiceInfo(
final XRegistryKey xRegistryKey) {
try {
XRegistryKey newKey =
xRegistryKey.createKey(LogServiceImpl.class
.getName()
+ /UNO/SINGLETONS/ +
LogServiceImpl._serviceName);
newKey.setStringValue(LogServiceImpl._serviceName);
} catch (InvalidRegistryException e) {
return false;
}
return
Re: [dev] How to create a uno singleton component ?
On 10/11/09 15:02, Oliver Brinzing wrote: can one give me some hints how to create a real java singleton component like final XLoggerPool xLoggerPool = LoggerPool.get(xComponentContext); ? till now i found only http://wiki.services.openoffice.org/wiki/Documentation/DevGuide/WritingUNO/Singleton is there a code templete available ? Maybe http://api.openoffice.org/servlets/ReadMsg?listName=devmsgNo=19649 is of help. -Stephan - To unsubscribe, e-mail: dev-unsubscr...@openoffice.org For additional commands, e-mail: dev-h...@openoffice.org
Re: [dev] How to create a uno singleton component ?
Hi Oliver, Oliver Brinzing wrote: Hi, can one give me some hints how to create a real java singleton component like final XLoggerPool xLoggerPool = LoggerPool.get(xComponentContext); ? till now i found only http://wiki.services.openoffice.org/wiki/Documentation/DevGuide/WritingUNO/Singleton is there a code templete available ? in this project: https://forge.osor.eu/projects/ooo-xadessig-it/ I wrote a couple of UNO singletons; - extension variables and - a dedicated logger. The svn repo is here: https://svn.forge.osor.eu/svn/ooo-xadessig-it the project that can be checked out as example is: https://svn.forge.osor.eu/svn/ooo-xadessig-it/trunk/oxsit-sing_var_uno Check out is anonymous enabled. The project is an Eclipse one. Full svn path to interesting classes: https://svn.forge.osor.eu/svn/ooo-xadessig-it/trunk/oxsit-sing_var_uno/src/it/plio/ext/oxsit/comp/GlobalLogger.java https://svn.forge.osor.eu/svn/ooo-xadessig-it/trunk/oxsit-sing_var_uno/src/it/plio/ext/oxsit/comp/SingletonGlobalVariables.java Licence is EUPL (GPL 2.0 like) I don't know if that will suit your application. Feel free to ask if you have questions. BeppeC. -- Kind Regards, Giuseppe Castagno Acca Esse http://www.acca-esse.eu giuseppe.castagno at acca-esse.eu beppec56 at openoffice.org - To unsubscribe, e-mail: dev-unsubscr...@openoffice.org For additional commands, e-mail: dev-h...@openoffice.org
Re: [dev] How to create a uno singleton component ?
Hi Oliver, Oliver Brinzing wrote: Hi, can one give me some hints how to create a real java singleton component like final XLoggerPool xLoggerPool = LoggerPool.get(xComponentContext); ? till now i found only http://wiki.services.openoffice.org/wiki/Documentation/DevGuide/WritingUNO/Singleton is there a code templete available ? in this project: https://forge.osor.eu/projects/ooo-xadessig-it/ I wrote a couple of UNO singletons; - extension variables and - a dedicated logger. The svn repo is here: https://svn.forge.osor.eu/svn/ooo-xadessig-it the project that can be checked out as example is: https://svn.forge.osor.eu/svn/ooo-xadessig-it/trunk/oxsit-sing_var_uno Check out is anonymous enabled. The project is an Eclipse one. Full svn path to interesting classes: https://svn.forge.osor.eu/svn/ooo-xadessig-it/trunk/oxsit-sing_var_uno/src/it/plio/ext/oxsit/comp/GlobalLogger.java https://svn.forge.osor.eu/svn/ooo-xadessig-it/trunk/oxsit-sing_var_uno/src/it/plio/ext/oxsit/comp/SingletonGlobalVariables.java Licence is EUPL (GPL 2.0 like) I don't know if that will suit your application. Feel free to ask if you have questions. BeppeC. -- Kind Regards, Giuseppe Castagno beppe...@openoffice.org giuseppe.castagno at acca-esse.eu Acca Esse http://www.acca-esse.eu - To unsubscribe, e-mail: dev-unsubscr...@openoffice.org For additional commands, e-mail: dev-h...@openoffice.org
Re: [dev] How to create a uno singleton component ?
Hi Giuseppe, in this project: https://forge.osor.eu/projects/ooo-xadessig-it/ thanks a lot, i will have a look next weekend ;-) Oliver -- GnuPG key 0xCFD04A45: 8822 057F 4956 46D3 352C 1A06 4E2C AB40 CFD0 4A45 signature.asc Description: OpenPGP digital signature
