Hi together,
I changed the name of the thread, because I progressed a lot
implementing a singleton...
After implementing my singleton (see Steps below) I want to retrieve it
using the following Java code:
-----%<-----
mySpringLoader.get(xComponentContext);
-----%<-----
But I get an exception:
-----%<-----
com.sun.star.uno.RuntimeException: no service object raising singleton
/singletons/de.twc.oocom.comp.mySpringLoader
at ...
-----%<-----
What went wrong? Can you help me?
Here is the way, I created my singleton (thanks Daan de Wit for your
great help):
STEP 1. I created an IDL file for my UNO interface for my extension:
-----%<-----
#ifndef __de_twc_oocom_comp_xspringloader_idl__
#define __de_twc_oocom_comp_xspringloader_idl__
#include <com/sun/star/uno/XInterface.idl>
module de { module twc { module oocom { module comp {
published interface XSpringLoader : com::sun::star::uno::XInterface {
};
}; }; }; };
#endif
-----%<-----
STEP 2. Then I defined my UNO singleton with the following IDL file:
-----%<-----
#ifndef __de_twc_oocom_comp_myspringloader_idl__
#define __de_twc_oocom_comp_myspringloader_idl__
#include "XSpringLoader.idl"
module de { module twc { module oocom { module comp {
published singleton mySpringLoader : XSpringLoader;
}; }; }; };
#endif
-----%<-----
STEP 3. I created a Java implementation of my singleton (very rudimentary):
-----%<-----
package de.twc.oocom.comp;
public class SpringLoaderImpl implements XSpringLoader {
private static final SpringLoaderImpl INSTANCE =
new SpringLoaderImpl();
private SpringLoaderImpl() { }
public static final SpringLoaderImpl getInstance() {
return INSTANCE;
}
/**
* The name of the singleton implemented.
*/
static final String SINGLETONNAME =
"de.twc.oocom.comp.mySpringLoader";
}
-----%<-----
STEP 4. I stored the singleton by adding the following code in my
__writeRegistryServiceInfo of my component registration class:
-----%<-----
public static boolean __writeRegistryServiceInfo(XRegistryKey regKey) {
try {
XRegistryKey newKey = regKey.createKey(
SpringLoaderImpl.class.getName() +
"/UNO/SINGLETONS/" +
mySpringLoader.class.getName());
newKey.setStringValue(SpringLoaderImpl.SINGLETONNAME);
} catch (InvalidRegistryException e) {
return false;
}
// Registering my service implemented in the same component
boolean regJudas = FactoryHelper.writeRegistryServiceInfo(
JudasProtocolHandler.class.getName(),
JudasProtocolHandler.SERVICENAME, regKey);
return regJudas;
}
-----%<-----
STEP 5. I changed my __getServiceFactory of my component registration
class. I am not sure if this step is correct. Daan adviced me the change
the method __getComponentFactory. But my component registration class
has no such method. Thus I used the __getServiceFactory. Can someone
tell me, if this is correct? Here is my code:
-----%<-----
public static XSingleServiceFactory __getServiceFactory(String implName,
XMultiServiceFactory multiFactory, XRegistryKey regKey) {
XSingleServiceFactory xSingleServiceFactory = null;
if (implName.equals(JudasProtocolHandler.class.getName())) {
xSingleServiceFactory = FactoryHelper.getServiceFactory(
JudasProtocolHandler.class,
JudasProtocolHandler.SERVICENAME,
multiFactory,
regKey);
}
else if (implName.equals(SpringLoaderImpl.class.getName())) {
xSingleServiceFactory = FactoryHelper.getServiceFactory(
SpringLoaderImpl.class,
SpringLoaderImpl.SINGLETONNAME,
multiFactory,
regKey);
}
return xSingleServiceFactory;
}
------%<------
STEP 6. I try to get my singelton this way:
-----%<-----
mySpringLoader.get(xComponentContext);
-----%<-----
Here, the failure described above happend. Can you help me solving this?
Thanks in advance!
Greeting, Tobias
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