Introduce query table content provider.

diff --git a/org.argeo.eclipse.ui/src/org/argeo/eclipse/ui/jcr/QueryTableContentProvider.java b/org.argeo.eclipse.ui/src/org/argeo/eclipse/ui/jcr/QueryTableContentProvider.java
new file mode 100644 (file)
index 0000000..934fa67
--- /dev/null
+++ b/org.argeo.eclipse.ui/src/org/argeo/eclipse/ui/jcr/QueryTableContentProvider.java
@@ -0,0 +1,35 @@
+package org.argeo.eclipse.ui.jcr;
+
+import javax.jcr.NodeIterator;
+import javax.jcr.RepositoryException;
+import javax.jcr.query.Query;
+
+import org.argeo.jcr.JcrException;
+import org.argeo.jcr.JcrUtils;
+import org.eclipse.jface.viewers.IStructuredContentProvider;
+import org.eclipse.jface.viewers.Viewer;
+
+/** Content provider based on a JCR {@link Query}. */
+public class QueryTableContentProvider implements IStructuredContentProvider {
+       private static final long serialVersionUID = 760371460907204722L;
+
+       @Override
+       public void dispose() {
+       }
+
+       @Override
+       public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
+       }
+
+       @Override
+       public Object[] getElements(Object inputElement) {
+               Query query = (Query) inputElement;
+               try {
+                       NodeIterator nit = query.execute().getNodes();
+                       return JcrUtils.nodeIteratorToList(nit).toArray();
+               } catch (RepositoryException e) {
+                       throw new JcrException(e);
+               }
+       }
+
+}