Examples of XUpdateProcessor

Examples of org.exist.xupdate.XUpdateProcessor

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            Sequence seq = xquery.execute("//item[ft:query(description, 'chair')]", null, AccessContext.TEST);
            assertNotNull(seq);
            assertEquals(1, seq.getItemCount());

            // Update element content
            XUpdateProcessor proc = new XUpdateProcessor(broker, docs, AccessContext.TEST);
            assertNotNull(proc);
            proc.setBroker(broker);
            proc.setDocumentSet(docs);
            String xupdate =
                    XUPDATE_START +
                    "   <xu:update select=\"//item[@id = '1']/description\">wardrobe</xu:update>" +
                    XUPDATE_END;
            Modification[] modifications = proc.parse(new InputSource(new StringReader(xupdate)));
            assertNotNull(modifications);
            modifications[0].process(transaction);
            proc.reset();

            checkIndex(docs, broker, new QName[] { new QName("description", "") }, null, 3);
            checkIndex(docs, broker, new QName[] { new QName("item", "") }, null, 5);
            checkIndex(docs, broker, new QName[] { new QName("description", "") }, "chair", 0);
            checkIndex(docs, broker, new QName[] { new QName("item", "") }, "chair", 0);
            Occurrences o[] = checkIndex(docs, broker, new QName[] { new QName("description", "") }, "wardrobe", 1);
            assertEquals("wardrobe", o[0].getTerm());

            // Update text node
            proc.setBroker(broker);
            proc.setDocumentSet(docs);
            xupdate =
                    XUPDATE_START +
                    "   <xu:update select=\"//item[@id = '1']/description/text()\">Wheelchair</xu:update>" +
                    XUPDATE_END;
            modifications = proc.parse(new InputSource(new StringReader(xupdate)));
            assertNotNull(modifications);
            modifications[0].process(transaction);
            proc.reset();

            checkIndex(docs, broker, new QName[] { new QName("description", "") }, null, 3);
            checkIndex(docs, broker, new QName[] { new QName("item", "") }, null, 5);
            checkIndex(docs, broker, new QName[] { new QName("description", "") }, "wardrobe", 0);
            checkIndex(docs, broker, new QName[] { new QName("item", "") }, "wardrobe", 0);
            o = checkIndex(docs, broker, new QName[] { new QName("description", "") }, "wheelchair", 1);
            assertEquals("wheelchair", o[0].getTerm());

            // Update attribute value
            proc.setBroker(broker);
            proc.setDocumentSet(docs);
            xupdate =
                    XUPDATE_START +
                    "   <xu:update select=\"//item[@id = '1']/@attr\">abc</xu:update>" +
                    XUPDATE_END;
            modifications = proc.parse(new InputSource(new StringReader(xupdate)));
            assertNotNull(modifications);
            modifications[0].process(transaction);
            proc.reset();

            QName qnattr[] = { new QName("attr", "", "") };
            qnattr[0].setNameType(ElementValue.ATTRIBUTE);
            o = checkIndex(docs, broker, qnattr, null, 1);
            assertEquals("abc", o[0].getTerm());
View Full Code Here

Examples of org.exist.xupdate.XUpdateProcessor

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            assertNotNull(xquery);
            Sequence seq = xquery.execute("//item[ngram:contains(., 'cha')]", null, AccessContext.TEST);
            assertNotNull(seq);
            assertEquals(1, seq.getItemCount());

            XUpdateProcessor proc = new XUpdateProcessor(broker, docs, AccessContext.TEST);
            assertNotNull(proc);
            proc.setBroker(broker);
            proc.setDocumentSet(docs);
            String xupdate =
                    XUPDATE_START +
                    "   <xu:replace select=\"//item[@id = '1']\">" +
                    "       <item id='4'><description>Wheelchair</description><price>809.50</price></item>" +
                    "   </xu:replace>" +
                    XUPDATE_END;
            Modification[] modifications = proc.parse(new InputSource(new StringReader(xupdate)));
            assertNotNull(modifications);
            modifications[0].process(transaction);
            proc.reset();

            checkIndex(broker, docs, "whe", 1);

            proc.setBroker(broker);
            proc.setDocumentSet(docs);
            xupdate =
                    XUPDATE_START +
                    "   <xu:replace select=\"//item[@id = '4']/description\">" +
                    "       <description>Armchair</description>" +
                    "   </xu:replace>" +
                    XUPDATE_END;
            modifications = proc.parse(new InputSource(new StringReader(xupdate)));
            assertNotNull(modifications);
            modifications[0].process(transaction);
            proc.reset();

            checkIndex(broker, docs, "whe", 0);
            checkIndex(broker, docs, "arm", 1);

            transact.commit(transaction);
View Full Code Here

Examples of org.exist.xupdate.XUpdateProcessor

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            assertNotNull(xquery);
            Sequence seq = xquery.execute("//item[ngram:contains(., 'cha')]", null, AccessContext.TEST);
            assertNotNull(seq);
            assertEquals(1, seq.getItemCount());

            XUpdateProcessor proc = new XUpdateProcessor(broker, docs, AccessContext.TEST);
            assertNotNull(proc);
            proc.setBroker(broker);
            proc.setDocumentSet(docs);
            String xupdate =
                    XUPDATE_START +
                    "   <xu:rename select=\"//item[@id='2']\">renamed</xu:rename>" +
                    XUPDATE_END;
            Modification[] modifications = proc.parse(new InputSource(new StringReader(xupdate)));
            assertNotNull(modifications);
            modifications[0].process(transaction);
            proc.reset();

            checkIndex(broker, docs, "tab", 0);

            transact.commit(transaction);
        } catch (Exception e) {
View Full Code Here

Examples of org.exist.xupdate.XUpdateProcessor

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            assertNotNull(xquery);
            Sequence seq = xquery.execute("//item[ft:query(description, 'chair')]", null, AccessContext.TEST);
            assertNotNull(seq);
            assertEquals(1, seq.getItemCount());

            XUpdateProcessor proc = new XUpdateProcessor(broker, docs, AccessContext.TEST);
            assertNotNull(proc);
            proc.setBroker(broker);
            proc.setDocumentSet(docs);
            String xupdate =
                    XUPDATE_START +
                    "<xu:replace select=\"//item[@id = '1']\">" +
                    "<item id='4'><description>Wheelchair</description> <condition>poor</condition></item>" +
                    "</xu:replace>" +
                    XUPDATE_END;
            Modification[] modifications = proc.parse(new InputSource(new StringReader(xupdate)));
            assertNotNull(modifications);
            modifications[0].process(transaction);
            proc.reset();

            checkIndex(docs, broker, new QName[] { new QName("description", "") }, null, 3);
            checkIndex(docs, broker, new QName[] { new QName("condition", "") }, null, 3);
            checkIndex(docs, broker, new QName[] { new QName("item", "") }, null, 6);
            checkIndex(docs, broker, new QName[] { new QName("description", "") }, "chair", 0);
            checkIndex(docs, broker, new QName[] { new QName("item", "") }, "chair", 0);
            Occurrences o[] = checkIndex(docs, broker, new QName[] { new QName("description", "") }, "wheelchair", 1);
            assertEquals("wheelchair", o[0].getTerm());
            o = checkIndex(docs, broker, new QName[] { new QName("condition", "") }, "poor", 1);
            assertEquals("poor", o[0].getTerm());
            o = checkIndex(docs, broker, new QName[] { new QName("item", "") }, "wheelchair", 1);
            assertEquals("wheelchair", o[0].getTerm());
            o = checkIndex(docs, broker, new QName[] { new QName("item", "") }, "poor", 1);
            assertEquals("poor", o[0].getTerm());

            proc.setBroker(broker);
            proc.setDocumentSet(docs);
            xupdate =
                    XUPDATE_START +
                    "<xu:replace select=\"//item[@id = '4']/description\">" +
                    "<description>Armchair</description>" +
                    "</xu:replace>" +
                    XUPDATE_END;
            modifications = proc.parse(new InputSource(new StringReader(xupdate)));
            assertNotNull(modifications);
            modifications[0].process(transaction);
            proc.reset();

            checkIndex(docs, broker, new QName[] { new QName("description", "") }, null, 3);
            checkIndex(docs, broker, new QName[] { new QName("item", "") }, null, 6);
            checkIndex(docs, broker, new QName[] { new QName("description", "") }, "wheelchair", 0);
            checkIndex(docs, broker, new QName[] { new QName("item", "") }, "wheelchair", 0);
View Full Code Here

Examples of org.exist.xupdate.XUpdateProcessor

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            IndexInfo info = init(broker, mgr);
            assertNotNull(info);
            MutableDocumentSet docs = new DefaultDocumentSet();
            docs.add(info.getDocument());
            XUpdateProcessor proc = new XUpdateProcessor(broker, docs, AccessContext.TEST);
            assertNotNull(proc);
           
            Txn transaction = mgr.beginTransaction();
            assertNotNull(transaction);
            System.out.println("Transaction started ...");
           
            String xupdate;
            Modification modifications[];
           
            // append some new element to records
            for (int i = 1; i <= 200; i++) {
                xupdate =
                    "<xu:modifications version=\"1.0\" xmlns:xu=\"http://www.xmldb.org/xupdate\">" +
                    "   <xu:append select=\"/products\">" +
                    "       <product>" +
                    "           <xu:attribute name=\"id\"><xu:value-of select=\"count(/products/product) + 1\"/></xu:attribute>" +
                    "           <description>Product " + i + "</description>" +
                    "           <price>" + (i * 2.5) + "</price>" +
                    "           <stock>" + (i * 10) + "</stock>" +
                    "       </product>" +
                    "   </xu:append>" +
                    "</xu:modifications>";
                proc.setBroker(broker);
                proc.setDocumentSet(docs);
                modifications = proc.parse(new InputSource(new StringReader(xupdate)));
                assertNotNull(modifications);
                modifications[0].process(transaction);
                proc.reset();
            }
           
            mgr.commit(transaction);
            System.out.println("Transaction commited ...");
           
            // the following transaction will not be committed and thus undone during recovery
            transaction = mgr.beginTransaction();
            assertNotNull(transaction);
            System.out.println("Transaction started ...");
           
            // update attributes
            for (int i = 1; i <= 200; i++) {
                xupdate =
                    "<xu:modifications version=\"1.0\" xmlns:xu=\"http://www.xmldb.org/xupdate\">" +
                    "   <xu:update select=\"/products/product[" + i + "]/@id\">" + i + "u</xu:update>" +
                    "</xu:modifications>";
                proc.setBroker(broker);
                proc.setDocumentSet(docs);
                modifications = proc.parse(new InputSource(new StringReader(xupdate)));
                assertNotNull(modifications);
                modifications[0].process(transaction);
                proc.reset();
            }
          
            //Don't commit
            pool.getTransactionManager().getJournal().flushToLog(true);
            System.out.println("Transaction interrupted ...");   
View Full Code Here

Examples of org.exist.xupdate.XUpdateProcessor

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            IndexInfo info = init(broker, mgr);
            assertNotNull(info);
            MutableDocumentSet docs = new DefaultDocumentSet();
            docs.add(info.getDocument());
            XUpdateProcessor proc = new XUpdateProcessor(broker, docs, AccessContext.TEST);
            assertNotNull(proc);
           
            Txn transaction = mgr.beginTransaction();
            assertNotNull(transaction);
            System.out.println("Transaction started ...");
           
            String xupdate;
            Modification modifications[];
           
            // append some new element to records
            for (int i = 1; i <= 200; i++) {
                xupdate =
                    "<xu:modifications version=\"1.0\" xmlns:xu=\"http://www.xmldb.org/xupdate\">" +
                    "   <xu:append select=\"/products\">" +
                    "       <product>" +
                    "           <xu:attribute name=\"id\"><xu:value-of select=\"count(/products/product) + 1\"/></xu:attribute>" +
                    "           <description>Product " + i + "</description>" +
                    "           <price>" + (i * 2.5) + "</price>" +
                    "           <stock>" + (i * 10) + "</stock>" +
                    "       </product>" +
                    "   </xu:append>" +
                    "</xu:modifications>";
                proc.setBroker(broker);
                proc.setDocumentSet(docs);
                modifications = proc.parse(new InputSource(new StringReader(xupdate)));
                assertNotNull(modifications);
                modifications[0].process(transaction);
                proc.reset();
            }
           
            DOMFile domDb = ((NativeBroker) broker).getDOMFile();
            assertNotNull(domDb);
            System.out.println(domDb.debugPages(info.getDocument(), false));
           
            mgr.commit(transaction);
            System.out.println("Transaction commited ...");
           
            // the following transaction will not be committed and thus undone during recovery
            transaction = mgr.beginTransaction();
            assertNotNull(transaction);
            System.out.println("Transaction started ...");
           
            // rename elements
            xupdate =
                "<xu:modifications version=\"1.0\" xmlns:xu=\"http://www.xmldb.org/xupdate\">" +
                "   <xu:rename select=\"/products/product/description\">descript</xu:rename>" +
                "</xu:modifications>";
            proc.setBroker(broker);
            proc.setDocumentSet(docs);
            modifications = proc.parse(new InputSource(new StringReader(xupdate)));
            assertNotNull(modifications);
            modifications[0].process(transaction);
            proc.reset();
           
//          Don't commit...           
            pool.getTransactionManager().getJournal().flushToLog(true);
            System.out.println("Transaction interrupted ...");
      } catch (Exception e) {    
View Full Code Here

Examples of org.exist.xupdate.XUpdateProcessor

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            assertNotNull(mgr);           
            IndexInfo info = init(broker, mgr);
            assertNotNull(info);
            MutableDocumentSet docs = new DefaultDocumentSet();
            docs.add(info.getDocument());
            XUpdateProcessor proc = new XUpdateProcessor(broker, docs, AccessContext.TEST);
            assertNotNull(proc);
            Txn transaction = mgr.beginTransaction();
            assertNotNull(transaction);
            System.out.println("Transaction started ...");
           
            String xupdate;
            Modification modifications[];
           
            // append some new element to records
            for (int i = 1; i <= 200; i++) {
                xupdate =
                    "<xu:modifications version=\"1.0\" xmlns:xu=\"http://www.xmldb.org/xupdate\">" +
                    "   <xu:append select=\"/products\">" +
                    "       <product>" +
                    "           <xu:attribute name=\"id\"><xu:value-of select=\"count(/products/product) + 1\"/></xu:attribute>" +
                    "           <description>Product " + i + "</description>" +
                    "           <price>" + (i * 2.5) + "</price>" +
                    "           <stock>" + (i * 10) + "</stock>" +
                    "       </product>" +
                    "   </xu:append>" +
                    "</xu:modifications>";
                proc.setBroker(broker);
                proc.setDocumentSet(docs);
                modifications = proc.parse(new InputSource(new StringReader(xupdate)));
                assertNotNull(modifications);
                modifications[0].process(transaction);               
                proc.reset();
            }
           
            mgr.commit(transaction);
            System.out.println("Transaction commited ...");
           
            // the following transaction will not be committed and thus undone during recovery
            transaction = mgr.beginTransaction();
            assertNotNull(transaction);
            System.out.println("Transaction started ...");
           
            // update elements
            for (int i = 1; i <= 200; i++) {
                xupdate =
                    "<xu:modifications version=\"1.0\" xmlns:xu=\"http://www.xmldb.org/xupdate\">" +
                    "   <xu:update select=\"/products/product[" + i + "]/price\">19.99</xu:update>" +
                    "</xu:modifications>";
                proc.setBroker(broker);
                proc.setDocumentSet(docs);
                modifications = proc.parse(new InputSource(new StringReader(xupdate)));
                assertNotNull(transaction);
                modifications[0].process(transaction);
                proc.reset();
            }
           
            //Don't commit
            pool.getTransactionManager().getJournal().flushToLog(true);
            System.out.println("Transaction interrupted ...");
View Full Code Here

Examples of org.exist.xupdate.XUpdateProcessor

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            IndexInfo info = init(broker, mgr);
            assertNotNull(info);
            MutableDocumentSet docs = new DefaultDocumentSet();
            docs.add(info.getDocument());
            XUpdateProcessor proc = new XUpdateProcessor(broker, docs, AccessContext.TEST);
            assertNotNull(proc);
           
            Txn transaction = mgr.beginTransaction();
            assertNotNull(transaction);
            System.out.println("Transaction started ...");
           
            String xupdate;
            Modification modifications[];
           
            xupdate =
                "<xu:modifications version=\"1.0\" xmlns:xu=\"http://www.xmldb.org/xupdate\">" +
                "   <xu:append select=\"/products\">" +
                "       <product id=\"1\">" +
                "           <description>Product 1</description>" +
                "           <price>24.30</price>" +
                "           <stock>10</stock>" +
                "       </product>" +
                "   </xu:append>" +
                "</xu:modifications>";
            proc.setBroker(broker);
            proc.setDocumentSet(docs);
            modifications = proc.parse(new InputSource(new StringReader(xupdate)));
            assertNotNull(modifications);
            modifications[0].process(transaction);
            proc.reset();
           
            // append some new element to records
            for (int i = 1; i <= 200; i++) {
                xupdate =
                    "<xu:modifications version=\"1.0\" xmlns:xu=\"http://www.xmldb.org/xupdate\">" +
                    "   <xu:insert-before select=\"/products/product[1]\">" +
                    "       <product>" +
                    "           <xu:attribute name=\"id\"><xu:value-of select=\"count(/products/product) + 1\"/></xu:attribute>" +
                    "           <description>Product " + i + "</description>" +
                    "           <price>" + (i * 2.5) + "</price>" +
                    "           <stock>" + (i * 10) + "</stock>" +
                    "       </product>" +
                    "   </xu:insert-before>" +
                    "</xu:modifications>";
                proc.setBroker(broker);
                proc.setDocumentSet(docs);
                modifications = proc.parse(new InputSource(new StringReader(xupdate)));
                assertNotNull(modifications);
                modifications[0].process(transaction);
                proc.reset();
            }
           
            DOMFile domDb = ((NativeBroker) broker).getDOMFile();
            assertNotNull(domDb);
            System.out.println(domDb.debugPages(info.getDocument(), false));
           
            mgr.commit(transaction);
            System.out.println("Transaction commited ...");           
           
            // the following transaction will not be committed and thus undone during recovery
            transaction = mgr.beginTransaction();
            System.out.println("Transaction started...");  
           
            // replace elements
            for (int i = 1; i <= 100; i++) {
                xupdate =
                    "<xu:modifications version=\"1.0\" xmlns:xu=\"http://www.xmldb.org/xupdate\">" +
                    "   <xu:replace select=\"/products/product[" + i + "]\">" +
                    "     <product id=\"" + i + "\">" +
                    "         <description>Replaced product</description>" +
                    "         <price>" + (i * 0.75) + "</price>" +
                    "     </product>" +
                    " </xu:replace>" +
                    "</xu:modifications>";
                proc.setBroker(broker);
                proc.setDocumentSet(docs);
                modifications = proc.parse(new InputSource(new StringReader(xupdate)));
                modifications[0].process(transaction);
                proc.reset();
            }
//            mgr.commit(transaction);
           
//          Don't commit...             
            pool.getTransactionManager().getJournal().flushToLog(true);
View Full Code Here

Examples of org.exist.xupdate.XUpdateProcessor

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            IndexInfo info = init(broker, mgr);
            assertNotNull(info);
            MutableDocumentSet docs = new DefaultDocumentSet();
            docs.add(info.getDocument());
            XUpdateProcessor proc = new XUpdateProcessor(broker, docs, AccessContext.TEST);
            assertNotNull(proc);
           
            Txn transaction = mgr.beginTransaction();
            assertNotNull(transaction);
            System.out.println("Transaction started ...");
           
            String xupdate;
            Modification modifications[];
           
            // append some new element to records
            for (int i = 1; i <= 50; i++) {
                xupdate =
                    "<xu:modifications version=\"1.0\" xmlns:xu=\"http://www.xmldb.org/xupdate\">" +
                    "   <xu:append select=\"/products\">" +
                    "       <product>" +
                    "           <xu:attribute name=\"id\"><xu:value-of select=\"count(/products/product) + 1\"/></xu:attribute>" +
                    "           <description>Product " + i + "</description>" +
                    "           <price>" + (i * 2.5) + "</price>" +
                    "           <stock>" + (i * 10) + "</stock>" +
                    "       </product>" +
                    "   </xu:append>" +
                    "</xu:modifications>";
                proc.setBroker(broker);
                proc.setDocumentSet(docs);
                modifications = proc.parse(new InputSource(new StringReader(xupdate)));
                assertNotNull(modifications);
                modifications[0].process(transaction);
                proc.reset();
            }
           
            mgr.commit(transaction);
            System.out.println("Transaction commited ...");
           
            Serializer serializer = broker.getSerializer();
            serializer.reset();
           
            DocumentImpl doc = broker.getXMLResource(TestConstants.TEST_COLLECTION_URI2.append(TestConstants.TEST_XML_URI), Lock.READ_LOCK);
            assertNotNull("Document '" + XmldbURI.ROOT_COLLECTION + "/test/test2/test.xml' should not be null", doc);
            String data = serializer.serialize(doc);
            System.out.println(data);
            doc.getUpdateLock().release(Lock.READ_LOCK);
           
            // the following transaction will not be committed and thus undone during recovery
            transaction = mgr.beginTransaction();
            System.out.println("Transaction started ...");
           
            // remove elements
            for (int i = 1; i <= 25; i++) {
                xupdate =
                    "<xu:modifications version=\"1.0\" xmlns:xu=\"http://www.xmldb.org/xupdate\">" +
                    "   <xu:remove select=\"/products/product[last()]\"/>" +
                    "</xu:modifications>";
                proc.setBroker(broker);
                proc.setDocumentSet(docs);
                modifications = proc.parse(new InputSource(new StringReader(xupdate)));
                assertNotNull(modifications);
                modifications[0].process(transaction);
                proc.reset();
            }
           
//          Don't commit...           
            pool.getTransactionManager().getJournal().flushToLog(true);
            System.out.println("Transaction interrupted ...");
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Examples of org.exist.xupdate.XUpdateProcessor

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            assertNotNull(transaction);
            System.out.println("Transaction started ...");
           
            MutableDocumentSet docs = new DefaultDocumentSet();
            docs.add(info.getDocument());
            XUpdateProcessor proc = new XUpdateProcessor(broker, docs, AccessContext.TEST);
            assertNotNull(proc);
           
            String xupdate;
            Modification modifications[];
           
            System.out.println("Inserting new items  ...");
            // insert some nodes
            for (int i = 1; i <= 200; i++) {
                xupdate =
                    "<xu:modifications version=\"1.0\" xmlns:xu=\"http://www.xmldb.org/xupdate\">" +
                    "   <xu:insert-before select=\"/products/product[1]\">" +
                    "       <product>" +
                    "           <description>Product " + i + "</description>" +
                    "           <price>" + (i * 2.5) + "</price>" +
                    "           <stock>" + (i * 10) + "</stock>" +
                    "       </product>" +
                    "   </xu:insert-before>" +
                    "</xu:modifications>";
                proc.setBroker(broker);
                proc.setDocumentSet(docs);
                modifications = proc.parse(new InputSource(new StringReader(xupdate)));
                assertNotNull(modifications);
                modifications[0].process(transaction);
                proc.reset();
            }
           
            System.out.println("Adding attributes  ...");
            // add attribute
            for (int i = 1; i <= 200; i++) {
              xupdate =
                  "<xu:modifications version=\"1.0\" xmlns:xu=\"http://www.xmldb.org/xupdate\">" +
                  "   <xu:append select=\"/products/product[" + i + "]\">" +
                  "         <xu:attribute name=\"id\">" + i + "</xu:attribute>" +
                  " </xu:append>" +
                  "</xu:modifications>";
              proc.setBroker(broker);
              proc.setDocumentSet(docs);
              modifications = proc.parse(new InputSource(new StringReader(xupdate)));
              assertNotNull(modifications);
              modifications[0].process(transaction);
              proc.reset();
          }
           
            System.out.println("Replacing elements  ...");
            // replace some
            for (int i = 1; i <= 100; i++) {
              xupdate =
                  "<xu:modifications version=\"1.0\" xmlns:xu=\"http://www.xmldb.org/xupdate\">" +
                  "   <xu:replace select=\"/products/product[" + i + "]\">" +
                  "     <product id=\"" + i + "\">" +
                  "         <description>Replaced product</description>" +
                  "         <price>" + (i * 0.75) + "</price>" +
                  "     </product>" +
                  " </xu:replace>" +
                  "</xu:modifications>";
              proc.setBroker(broker);
              proc.setDocumentSet(docs);
              modifications = proc.parse(new InputSource(new StringReader(xupdate)));
              assertNotNull(modifications);
              long mods = modifications[0].process(transaction);
              System.out.println("Modifications: " + mods);
              proc.reset();
          }
               
            System.out.println("Removing some elements ...");
            // remove some
            for (int i = 1; i <= 100; i++) {
                xupdate =
                    "<xu:modifications version=\"1.0\" xmlns:xu=\"http://www.xmldb.org/xupdate\">" +
                    "   <xu:remove select=\"/products/product[last()]\"/>" +
                    "</xu:modifications>";
                proc.setBroker(broker);
                proc.setDocumentSet(docs);
                modifications = proc.parse(new InputSource(new StringReader(xupdate)));
                assertNotNull(modifications);
                modifications[0].process(transaction);
                proc.reset();
            }
           
            System.out.println("Appending some elements ...");
            for (int i = 1; i <= 100; i++) {
                xupdate =
                    "<xu:modifications version=\"1.0\" xmlns:xu=\"http://www.xmldb.org/xupdate\">" +
                    "   <xu:append select=\"/products\">" +
                    "       <product>" +
                    "           <xu:attribute name=\"id\"><xu:value-of select=\"count(/products/product) + 1\"/></xu:attribute>" +
                    "           <description>Product " + i + "</description>" +
                    "           <price>" + (i * 2.5) + "</price>" +
                    "           <stock>" + (i * 10) + "</stock>" +
                    "       </product>" +
                    "   </xu:append>" +
                    "</xu:modifications>";
                proc.setBroker(broker);
                proc.setDocumentSet(docs);
                modifications = proc.parse(new InputSource(new StringReader(xupdate)));
                assertNotNull(modifications);
                modifications[0].process(transaction);
                proc.reset();
            }
           
            System.out.println("Renaming elements  ...");
            // rename element "description" to "descript"
            xupdate =
                "<xu:modifications version=\"1.0\" xmlns:xu=\"http://www.xmldb.org/xupdate\">" +
                "   <xu:rename select=\"/products/product/description\">descript</xu:rename>" +
                "</xu:modifications>";
            proc.setBroker(broker);
            proc.setDocumentSet(docs);
            modifications = proc.parse(new InputSource(new StringReader(xupdate)));
            assertNotNull(modifications);
            modifications[0].process(transaction);
            proc.reset();
           
            System.out.println("Updating attribute values ...");
            // update attribute values
            for (int i = 1; i <= 200; i++) {
                xupdate =
                    "<xu:modifications version=\"1.0\" xmlns:xu=\"http://www.xmldb.org/xupdate\">" +
                    "   <xu:update select=\"/products/product[" + i + "]/@id\">" + i + "u</xu:update>" +
                    "</xu:modifications>";
                proc.setBroker(broker);
                proc.setDocumentSet(docs);
                modifications = proc.parse(new InputSource(new StringReader(xupdate)));
                assertNotNull(modifications);
                long mods = modifications[0].process(transaction);
                System.out.println(mods + " records modified.");
                proc.reset();
            }
            System.out.println("Append new element to each item ...");
            // append new element to records
            for (int i = 1; i <= 200; i++) {
                xupdate =
                    "<xu:modifications version=\"1.0\" xmlns:xu=\"http://www.xmldb.org/xupdate\">" +
                    "   <xu:append select=\"/products/product[" + i + "]\">" +
                    "       <date><xu:value-of select=\"current-dateTime()\"/></date>" +
                    "   </xu:append>" +
                    "</xu:modifications>";
                proc.setBroker(broker);
                proc.setDocumentSet(docs);
                modifications = proc.parse(new InputSource(new StringReader(xupdate)));
                assertNotNull(modifications);
                modifications[0].process(transaction);
                proc.reset();
            }
           
            System.out.println("Updating element content ...");
            // update element content
            for (int i = 1; i <= 200; i++) {
                xupdate =
                    "<xu:modifications version=\"1.0\" xmlns:xu=\"http://www.xmldb.org/xupdate\">" +
                    "   <xu:update select=\"/products/product[" + i + "]/price\">19.99</xu:update>" +
                    "</xu:modifications>";
                proc.setBroker(broker);
                proc.setDocumentSet(docs);
                modifications = proc.parse(new InputSource(new StringReader(xupdate)));
                assertNotNull(modifications);
                long mods = modifications[0].process(transaction);
                System.out.println(mods + " records modified.");
                proc.reset();
            }          

            transact.commit(transaction);
            System.out.println("Transaction commited ...");           
          
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