[26348] rework omnivore exportToFileSystem use query with limit

Author: huthomas

bundles/ch.elexis.omnivore.ui/src/ch/elexis/omnivore/ui/jobs/OutsourceUiJob.java

@@ -1,17 +1,15 @@
 package ch.elexis.omnivore.ui.jobs;
 
 import java.lang.reflect.InvocationTargetException;
-import java.util.Collections;
+import java.util.List;
 
 import org.eclipse.core.runtime.IProgressMonitor;
 import org.eclipse.jface.dialogs.ProgressMonitorDialog;
 import org.eclipse.jface.operation.IRunnableWithProgress;
-import org.eclipse.persistence.config.HintValues;
-import org.eclipse.persistence.config.QueryHints;
 import org.eclipse.swt.widgets.Shell;
 
 import ch.elexis.core.services.IQuery;
-import ch.elexis.core.services.IQueryCursor;
+import ch.elexis.core.services.IQuery.COMPARATOR;
 import ch.elexis.core.ui.util.SWTHelper;
 import ch.elexis.omnivore.data.Messages;
 import ch.elexis.omnivore.model.IDocumentHandle;
@@ -28,15 +26,16 @@ public Object execute(Shell parentShell) {
 
 				@Override
 				public void run(IProgressMonitor monitor) throws InvocationTargetException, InterruptedException {
-					IQuery<IDocumentHandle> qDoc = OmnivoreModelServiceHolder.get().getQuery(IDocumentHandle.class);
-
-					try (IQueryCursor<IDocumentHandle> docs = qDoc
-							.executeAsCursor(Collections.singletonMap(QueryHints.MAINTAIN_CACHE, HintValues.TRUE))) {
-						monitor.beginTask("Dateien werden ausgelagert...", docs.size());
+					monitor.beginTask("Dateien werden ausgelagert...", IProgressMonitor.UNKNOWN);
 
-						while (docs.hasNext()) {
-							IDocumentHandle docHandle = docs.next();
+					IQuery<IDocumentHandle> qDoc = OmnivoreModelServiceHolder.get().getQuery(IDocumentHandle.class);
+					qDoc.and("doc", COMPARATOR.NOT_EQUALS, null);
+					qDoc.and("kontakt", COMPARATOR.NOT_EQUALS, null);
+					qDoc.limit(100);
 
+					List<IDocumentHandle> notExported = qDoc.execute();
+					while (!notExported.isEmpty()) {
+						for (IDocumentHandle docHandle : notExported) {
 							if (monitor.isCanceled())
 								return;
 							monitor.subTask("Datei: " + docHandle.getTitle());
@@ -46,6 +45,7 @@ public void run(IProgressMonitor monitor) throws InvocationTargetException, Inte
 							}
 							monitor.worked(1);
 						}
+						notExported = qDoc.execute();
 					}
 					monitor.done();
 				}