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

        tb.add( "g", Point.class );
        tb.add( "name", String.class );
        
        ds.createSchema( tb.buildFeatureType() );
        
        FeatureWriter fw = ds.getFeatureWriterAppend( "widgets", Transaction.AUTO_COMMIT );
        fw.hasNext();
        SimpleFeature sf = (SimpleFeature) fw.next();
        sf.setAttribute("g", new GeometryFactory().createPoint( new Coordinate(1,1)));
        sf.setAttribute( "name", "one");
        fw.write();
        
        fw.hasNext();
        sf = (SimpleFeature) fw.next();
        sf.setAttribute("g", new GeometryFactory().createPoint( new Coordinate(2,2)));
        sf.setAttribute( "name", "two");
        fw.write();
        
        fw.close();
        ds.dispose();
    }

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Examples of org.geotools.data.FeatureWriter

        tb.setName( "widgetsNG" );
        tb.add( "name", String.class );
        
        ds.createSchema( tb.buildFeatureType() );
        
        FeatureWriter fw = ds.getFeatureWriterAppend( "widgetsNG", Transaction.AUTO_COMMIT );
        fw.hasNext();
        SimpleFeature sf = (SimpleFeature) fw.next();
        sf.setAttribute( "name", "one");
        fw.write();
        
        fw.hasNext();
        sf = (SimpleFeature) fw.next();
        sf.setAttribute( "name", "two");
        fw.write();
        
        fw.close();
        
        String xml = 
            "<featureType>" +
              "<name>widgetsNG</name>" + 
            "</featureType>";

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Examples of org.geotools.data.FeatureWriter

    
    void loadDeletes(DataStore dataStore) throws Exception {
        SimpleFeatureType Deletes = buildFeatureType( "Deletes", cdf, 32615, 
                Arrays.asList( "id", "pointProperty"),  String.class, Point.class );    


        FeatureWriter w = buildFeatureStore( Deletes, dataStore );
        feature( w, "td0001", geometry( "POINT(500050 500050)" , 32615 ) );
        feature( w, "td0002", geometry( "POINT(500050 500050)" , 32615 ) );
        feature( w, "td0003", geometry( "POINT(500050 500050)" , 32615 ) );
        w.close();
    }

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Examples of org.geotools.data.FeatureWriter

    
    void loadFifteen(DataStore dataStore) throws Exception {
        SimpleFeatureType Fifteen = buildFeatureType( "Fifteen", cdf, 32615, 
                Arrays.asList( "pointProperty" ), Point.class );
        
        FeatureWriter w = buildFeatureStore( Fifteen, dataStore );
        feature( w, geometry( "POINT(500050 500050)" , 32615 ) );
        feature( w, geometry( "POINT(500050 500050)" , 32615 ) );
        feature( w, geometry( "POINT(500050 500050)" , 32615 ) );
        feature( w, geometry( "POINT(500050 500050)" , 32615 ) );
        feature( w, geometry( "POINT(500050 500050)" , 32615 ) );
        feature( w, geometry( "POINT(500050 500050)" , 32615 ) );
        feature( w, geometry( "POINT(500050 500050)" , 32615 ) );
        feature( w, geometry( "POINT(500050 500050)" , 32615 ) );
        feature( w, geometry( "POINT(500050 500050)" , 32615 ) );
        feature( w, geometry( "POINT(500050 500050)" , 32615 ) );
        feature( w, geometry( "POINT(500050 500050)" , 32615 ) );
        feature( w, geometry( "POINT(500050 500050)" , 32615 ) );
        feature( w, geometry( "POINT(500050 500050)" , 32615 ) );
        feature( w, geometry( "POINT(500050 500050)" , 32615 ) );
        feature( w, geometry( "POINT(500050 500050)" , 32615 ) );
        w.close();
    }

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Examples of org.geotools.data.FeatureWriter

    
    void loadInserts(DataStore dataStore) throws Exception {
        SimpleFeatureType Inserts = buildFeatureType( "Inserts", cdf, 32615, 
                Arrays.asList( "id", "pointProperty"),  String.class, Point.class );
        
        FeatureWriter w = buildFeatureStore( Inserts, dataStore );
        w.close();
    }

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Examples of org.geotools.data.FeatureWriter

    void loadLocks(DataStore dataStore) throws Exception {
        
        SimpleFeatureType Locks = buildFeatureType( "Locks", cdf, 32615,
            Arrays.asList( "id", "pointProperty"),  String.class, Point.class );
        
        FeatureWriter w = buildFeatureStore(Locks, dataStore);
        feature( w, "lfla0001", geometry("POINT(500050 500050)", 32615 ) );
        feature( w, "lfla0002", geometry("POINT(500050 500050)", 32615 ) );
        feature( w, "lfla0003", geometry("POINT(500050 500050)", 32615 ) );
        feature( w, "lfla0004", geometry("POINT(500050 500050)", 32615 ) );
        feature( w, "gfwlla0001", geometry("POINT(500050 500050)", 32615 ) );
        feature( w, "gfwlla0002", geometry("POINT(500050 500050)", 32615 ) );
        feature( w, "gfwlla0003", geometry("POINT(500050 500050)", 32615 ) );
        feature( w, "gfwlla0004", geometry("POINT(500050 500050)", 32615 ) );
        feature( w, "lfbt0001", geometry("POINT(500050 500050)", 32615 ) );
        feature( w, "lfbt0002", geometry("POINT(500050 500050)", 32615 ) );
        feature( w, "lfbt0003", geometry("POINT(500050 500050)", 32615 ) );
        feature( w, "lfbt0004", geometry("POINT(500050 500050)", 32615 ) );
        feature( w, "lfbt0005", geometry("POINT(500050 500050)", 32615 ) );
        feature( w, "lfbt0006", geometry("POINT(500050 500050)", 32615 ) );
        feature( w, "gfwlbt0001", geometry("POINT(500050 500050)", 32615 ) );
        feature( w, "gfwlbt0002", geometry("POINT(500050 500050)", 32615 ) );
        feature( w,  "gfwlbt0003", geometry("POINT(500050 500050)", 32615 ) );
        feature( w, "gfwlbt0004", geometry("POINT(500050 500050)", 32615 ) );
        feature( w, "gfwlbt0005", geometry("POINT(500050 500050)", 32615 ) );
        feature( w, "gfwlbt0006", geometry("POINT(500050 500050)", 32615 ) );
        feature( w, "lfe0001", geometry("POINT(500050 500050)", 32615 ) );
        feature( w, "lfe0002",geometry("POINT(500050 500050)", 32615 ) );
        feature( w, "lfe0003",geometry("POINT(500050 500050)", 32615 ) );
        feature( w, "lfe0004",geometry("POINT(500050 500050)", 32615 ) );
        feature( w, "gfwle0001",geometry("POINT(500050 500050)", 32615 ) );
        feature( w, "gfwle0002",geometry("POINT(500050 500050)", 32615 ) );
        feature( w, "gfwle0003",geometry("POINT(500050 500050)", 32615 ) );
        feature( w, "gfwle0004",geometry("POINT(500050 500050)", 32615 ) );
        feature( w, "lfra0001",geometry("POINT(500050 500050)", 32615 ) );
        feature( w, "lfra0002",geometry("POINT(500050 500050)", 32615 ) );
        feature( w, "lfra0003",geometry("POINT(500050 500050)", 32615 ) );
        feature( w, "lfra0004",geometry("POINT(500050 500050)", 32615 ) );
        feature( w, "lfra0005",geometry("POINT(500050 500050)", 32615 ) );
        feature( w, "lfra0006",geometry("POINT(500050 500050)", 32615 ) );
        feature( w, "lfra0007",geometry("POINT(500050 500050)", 32615 ) );
        feature( w, "lfra0008",geometry("POINT(500050 500050)", 32615 ) );
        feature( w, "lfra0009",geometry("POINT(500050 500050)", 32615 ) );
        feature( w, "lfra0010",geometry("POINT(500050 500050)", 32615 ) );
        feature( w, "gfwlra0001",geometry("POINT(500050 500050)", 32615 ) );
        feature( w, "gfwlra0002",geometry("POINT(500050 500050)", 32615 ) );
        feature( w, "gfwlra0003",geometry("POINT(500050 500050)", 32615 ) );
        feature( w, "gfwlra0004",geometry("POINT(500050 500050)", 32615 ) );
        feature( w, "gfwlra0005",geometry("POINT(500050 500050)", 32615 ) );
        feature( w, "gfwlra0006",geometry("POINT(500050 500050)", 32615 ) );
        feature( w, "gfwlra0007",geometry("POINT(500050 500050)", 32615 ) );
        feature( w, "gfwlra0008",geometry("POINT(500050 500050)", 32615 ) );
        feature( w, "gfwlra0009",geometry("POINT(500050 500050)", 32615 ) );
        feature( w, "gfwlra0010",geometry("POINT(500050 500050)", 32615 ) );
        feature( w, "lfrs0001",geometry("POINT(500050 500050)", 32615 ) );
        feature( w, "lfrs0002",geometry("POINT(500050 500050)", 32615 ) );
        feature( w, "lfrs0003",geometry("POINT(500050 500050)", 32615 ) );
        feature( w, "lfrs0004",geometry("POINT(500050 500050)", 32615 ) );
        feature( w, "lfrs0005",geometry("POINT(500050 500050)", 32615 ) );
        feature( w, "lfrs0006",geometry("POINT(500050 500050)", 32615 ) );
        feature( w, "lfrs0007",geometry("POINT(500050 500050)", 32615 ) );
        feature( w, "lfrs0008",geometry("POINT(500050 500050)", 32615 ) );
        feature( w, "lfrs0009",geometry("POINT(500050 500050)", 32615 ) );
        feature( w, "lfrs0010",geometry("POINT(500050 500050)", 32615 ) );
        feature( w, "gfwlrs0001",geometry("POINT(500050 500050)", 32615 ) );
        feature( w, "gfwlrs0002",geometry("POINT(500050 500050)", 32615 ) );
        feature( w, "gfwlrs0003",geometry("POINT(500050 500050)", 32615 ) );
        feature( w, "gfwlrs0004",geometry("POINT(500050 500050)", 32615 ) );
        feature( w, "gfwlrs0005",geometry("POINT(500050 500050)", 32615 ) );
        feature( w, "gfwlrs0006",geometry("POINT(500050 500050)", 32615 ) );
        feature( w, "gfwlrs0007",geometry("POINT(500050 500050)", 32615 ) );
        feature( w, "gfwlrs0008",geometry("POINT(500050 500050)", 32615 ) );
        feature( w, "gfwlrs0009",geometry("POINT(500050 500050)", 32615 ) );
        feature( w, "gfwlrs0010",geometry("POINT(500050 500050)", 32615 ) );
        w.close();
    }

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Examples of org.geotools.data.FeatureWriter

    void loadNulls(DataStore dataStore) throws Exception {
        SimpleFeatureType Nulls = buildFeatureType( "Nulls", cdf,  32615,
                Arrays.asList( "description", "name", "integers", "dates", "pointProperty"),
                String.class, String.class, Integer.class, Date.class, Point.class );
        
        FeatureWriter w = buildFeatureStore(Nulls, dataStore);
        feature( w, "nullFeature",null,null,null,null );
        w.close();
    }

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Examples of org.geotools.data.FeatureWriter

        SimpleFeatureType Other = buildFeatureType( "Other", cdf, 32615,
                Arrays.asList( "description", "name", "pointProperty", "string1", "string2", "integers", "dates"),
                Arrays.asList( "string1" ), 
                String.class, String.class, Point.class, String.class, String.class, Integer.class, Date.class );    
    
        FeatureWriter w = buildFeatureStore( Other, dataStore );
        
        feature( w, "A Single Feature used to test returning of properties", "singleFeature", 
                geometry("POINT(500050 500050)",32615 ), "always", "sometimes",7, date( "2002-12-02" ) );


    }

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Examples of org.geotools.data.FeatureWriter

    
    void loadSeven(DataStore dataStore) throws Exception {
        SimpleFeatureType Seven = buildFeatureType( "Seven", cdf, 32615,
                Arrays.asList( "pointProperty"), Point.class );
        
        FeatureWriter w = buildFeatureStore(Seven, dataStore);
        feature( w, geometry( "POINT(500050 500050)" , 32615 ) );
        feature( w, geometry( "POINT(500050 500050)" , 32615 ) );
        feature( w, geometry( "POINT(500050 500050)" , 32615 ) );
        feature( w, geometry( "POINT(500050 500050)" , 32615 ) );
        feature( w, geometry( "POINT(500050 500050)" , 32615 ) );
        feature( w, geometry( "POINT(500050 500050)" , 32615 ) );
        feature( w, geometry( "POINT(500050 500050)" , 32615 ) );
        w.close();
    }

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Examples of org.geotools.data.FeatureWriter

    
    void loadUpdates(DataStore dataStore) throws Exception {
        SimpleFeatureType Updates = buildFeatureType( "Updates", cdf, 32615,
                Arrays.asList( "id", "pointProperty"), String.class, Point.class );
        
        FeatureWriter w = buildFeatureStore( Updates, dataStore );
        feature( w, "tu0001", geometry("POINT(500050 500050)", 32615 ) );
        feature( w, "tu0002", geometry("POINT(500050 500050)", 32615 ) );
        feature( w, "tu0003", geometry("POINT(500050 500050)", 32615 ) );
        feature( w, "tu0004", geometry("POINT(500050 500050)", 32615 ) );
        w.close();
    }

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