Examples of FeatureWriter

org.geotools.data.FeatureWriter
Provides the ability to write Features information.
Capabilities:
- Similar API to FeatureReader
- After aquiring a feature using next() you may call remove() or after modification write(). If you do not call one of these two methods before calling hasNext(), or next() for that matter, the feature will be left unmodified.
- This API allows modification, and Filter based modification to be written. Please see AbstractDataStore for examples of implementing common opperations using this API.
- In order to add new Features, FeatureWriters capable of accepting new content allow next() to be called when hasNext() is false to allow new feature creation. These changes
One thing that is really nice about the approach to adding content is that the generation of FID is not left in the users control.
@author Ian Schneider @author Jody Garnett, Refractions Research @source $URL$ @version $Id$

Examples of org.geotools.data.FeatureWriter

            t[i] = new Thread(new Runnable() {
                @Override
                public void run() {
                    for (int j = 0; j < 50; j++) {
                        try {
                            FeatureWriter w = dataStore.getFeatureWriter(tname("ft2"), Transaction.AUTO_COMMIT);
                            while (w.hasNext()) {
                                w.next();
                            }
                            SimpleFeature f = (SimpleFeature) w.next();
                            f.setAttribute(1, new Integer( (id * 100) + j));
                            f.setAttribute(2, "one");
                            w.write();
                            w.close();
                        } catch (Exception ex) {
                            ex.printStackTrace();
                            errors[0] = true;
                        }
                    }

View Full Code Here

Examples of org.geotools.data.FeatureWriter


        SimpleFeatureType featureType = builder.buildFeatureType();
        dataStore.createSchema(featureType);




        FeatureWriter w = dataStore.getFeatureWriter(tname("ft2"), Transaction.AUTO_COMMIT);
        w.hasNext();


        SimpleFeature f = (SimpleFeature) w.next();
        f.setAttribute(1, new Integer(0));
        f.setAttribute(2, "one");
        w.write();
        w.close();


        FilterFactory ff = dataStore.getFilterFactory();
        PropertyIsEqualTo correct = ff.equal(ff.property(aname("stringProperty")), ff.literal("one"), true);
        PropertyIsEqualTo incorrect = ff.equal(ff.property(aname("stringProperty")), ff.literal("OnE"), true);

View Full Code Here

Examples of org.geotools.data.FeatureWriter

    }
    
    static void loadData(MemoryDataStore mem, String name) throws Exception {
        WKTReader wkt = new WKTReader();


        FeatureWriter w = mem.getFeatureWriter(name, Transaction.AUTO_COMMIT);
        BufferedReader r = new BufferedReader(
                new InputStreamReader(
                        LabelObstacleTest.class.getResourceAsStream("test-data/obstacles/" + name
                                + ".txt")));
        String line = null;
        while ((line = r.readLine()) != null) {
            String[] values = line.split(";");
            SimpleFeature f = (SimpleFeature) w.next();
            for (int i = 0; i < f.getAttributeCount(); i++) {
                AttributeDescriptor ad = f.getType().getDescriptor(i);
                if (ad instanceof GeometryDescriptor) {
                    f.setAttribute(i, wkt.read(values[i]));
                } else {
                    f.setAttribute(i, values[i]);
                }
            }


            w.write();
        }


        r.close();
    }

View Full Code Here

Examples of org.geotools.data.FeatureWriter

     */
    public SimpleFeatureWriter writer(FeatureEntry entry, boolean append, Filter filter, 
        Transaction tx) throws IOException {


        DataStore dataStore = dataStore();
        FeatureWriter w = append ?  dataStore.getFeatureWriterAppend(entry.getTableName(), tx) 
            : dataStore.getFeatureWriter(entry.getTableName(), filter, tx);


        return Features.simple(w);
    }

View Full Code Here

Examples of org.geotools.data.FeatureWriter


        String typeName = sds.getTypeNames()[0];
        int idx = loadFeatures(sds, typeName).size();


        while (idx > 0) {
            FeatureWriter writer = null;


            try {
                writer = sds.getFeatureWriter(typeName, Filter.INCLUDE, Transaction.AUTO_COMMIT);
                writer.next();
                writer.remove();
            } finally {
                if (writer != null) {
                    writer.close();
                    writer = null;
                }
            }
            idx--;
            assertEquals(idx, countFeatures(loadFeatures(sds, typeName)));

View Full Code Here

Examples of org.geotools.data.FeatureWriter


        int idx = loadFeatures(sds, typeName).size();
        assertEquals(idx, countFeatures(loadFeatures(sds, typeName)));


        while (idx > 0) {
            FeatureWriter writer = null;
            try {
                writer = sds.getFeatureWriter(sds.getTypeNames()[0], Filter.INCLUDE,
                        Transaction.AUTO_COMMIT);
                while (writer.hasNext()) {
                    writer.next();
                }
                writer.remove();
            } finally {
                if (writer != null) {
                    writer.close();
                    writer = null;
                }
            }
            assertEquals(--idx, countFeatures(loadFeatures(sds, typeName)));
        }

View Full Code Here

Examples of org.geotools.data.FeatureWriter

            features[i] = SimpleFeatureBuilder.build(schema,
                    new Object[] { gf.createPoint(new Coordinate(i, i)), new Integer(i), "" + i },
                    null);
        }


        FeatureWriter writer = ds.getFeatureWriterAppend("testw", Transaction.AUTO_COMMIT);
        for (int i = 0; i < features.length; i++) {
            assertFalse(writer.hasNext());
            SimpleFeature f = (SimpleFeature) writer.next();
            f.setAttributes(features[i].getAttributes());
            writer.write();
        }
        writer.close();


        FeatureReader reader = ds.getFeatureReader(new Query("testw"), null);
        for (int i = 0; i < features.length; i++) {
            assertTrue(reader.hasNext());
            SimpleFeature f = (SimpleFeature) reader.next();

View Full Code Here

Examples of org.geotools.data.FeatureWriter

        
      // creates the feature writer using the schema of source feature collection.
      SimpleFeatureType schema = fc.getSchema();


        s.createSchema(schema);
        FeatureWriter fw = s.getFeatureWriter(s.getTypeNames()[0], Transaction.AUTO_COMMIT);


        FeatureIterator it = fc.features();
        while (it.hasNext()) {
            SimpleFeature sf = (SimpleFeature) it.next();
            ((SimpleFeature) fw.next()).setAttributes(sf.getAttributes());
            fw.write();
        }
        it.close();
        fw.close();
    }

View Full Code Here

Examples of org.geotools.data.FeatureWriter

        
      // creates the feature writer using the schema of source feature collection.
      SimpleFeatureType schema = buildFeatureTypeForMapInfo();
      
        s.createSchema(schema);
        FeatureWriter fw = s.getFeatureWriter(s.getTypeNames()[0], Transaction.AUTO_COMMIT);
        //FeatureWriter fw = s.getFeatureWriterAppend(s.getTypeNames()[0], Transaction.AUTO_COMMIT);
        
        FeatureIterator it = fc.features();
        while (it.hasNext()) {
            SimpleFeature sf = (SimpleFeature) it.next();
            ((SimpleFeature) fw.next()).setAttributes(sf.getAttributes());
            fw.write();
        }
        it.close();
        fw.close();
    }

View Full Code Here

Examples of org.geotools.data.FeatureWriter

      // creates the feature writer using the schema of source feature collection.
      SimpleFeatureType schema = fc.getSchema();


        dataStore.createSchema(schema);
        String typeName = dataStore.getTypeNames()[0];
    FeatureWriter fw = dataStore.getFeatureWriter(typeName, Transaction.AUTO_COMMIT);


        System.out.println("adding features ....");
        FeatureIterator it = fc.features();
        while (it.hasNext()) {
            SimpleFeature sf = (SimpleFeature) it.next();
            ((SimpleFeature) fw.next()).setAttributes(sf.getAttributes());
            fw.write();
        }
        it.close();
        fw.close();
        System.out.println("the end!!!");


    }

View Full Code Here

0 1 2 3 4 5

TOP

All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.