Examples of org.geotools.data.FeatureEvent

org.geotools.data.FeatureEvent
Represents all events triggered by DataStore instances (typically change events).
The "Source" for FeatureEvents is taken to be a FeatureSource, rather than DataStore. The is due to SimpleFeatureSource having a hold of Transaction information.

DataStore implementations will actually keep the list listeners sorted by TypeName, and can report FeatureWriter modifications as required (by filtering the Listener list by typeName and Transaction).

The Transaction.commit() operation will also need to provide notification, this shows up as a CHANGE event; with a bit more detail being available in the subclass BatchFeatureEvent.
@since GeoTools 2.0 @source $URL$

            return;


        Filter filter = idFilter(feature);
        ReferencedEnvelope bounds = new ReferencedEnvelope(feature.getBounds());


        FeatureEvent event = new FeatureEvent(source, Type.REMOVED, bounds, filter);


        fireFeatureEvent(event);
    }

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        store1.removeFeatures(fidFilter);


        assertEquals(1, listener1.events.size());
        assertEquals(0, listener2.events.size());


        FeatureEvent event = listener1.getEvent(0);
        assertEquals(feature.getBounds(), event.getBounds());
        assertEquals(FeatureEvent.Type.REMOVED, event.getType());


        // test that commit only sends events to listener2.
        listener1.events.clear();
        listener2.events.clear();


        store1.getTransaction().commit();


        assertEquals(0, listener1.events.size());
        assertEquals(3, listener2.events.size());


        event = listener2.getEvent(0);
        assertEquals(feature.getBounds(), event.getBounds());
        assertEquals(FeatureEvent.Type.REMOVED, event.getType());


        // test add same as modify
        listener1.events.clear();
        listener2.events.clear();


        store1.addFeatures(DataUtilities.collection(feature));


        assertEquals(1, listener1.events.size());
        event = listener1.getEvent(0);
        assertEquals(feature.getBounds(), event.getBounds());
        assertEquals(FeatureEvent.Type.ADDED, event.getType());
        assertEquals(0, listener2.events.size());


        // test that rollback only sends events to listener1.
        listener1.events.clear();
        listener2.events.clear();


        store1.getTransaction().rollback();


        assertEquals(1, listener1.events.size());
        event = listener1.getEvent(0);
        assertNull(event.getBounds());
        assertEquals(FeatureEvent.Type.CHANGED, event.getType());


        assertEquals(0, listener2.events.size());
    }

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            affectedBounds.expandToInclude(bounds);
        }


        if (contentState.hasListener()) {
            // issue notificaiton
            FeatureEvent event = new FeatureEvent(this, Type.CHANGED, affectedBounds, filter);
            contentState.fireFeatureEvent(event);
        }


    }

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        store1.removeFeatures(fidFilter);


        assertEquals(1, listener1.events.size());
        assertEquals(1, listener2.events.size());
        
        FeatureEvent event = listener1.getEvent(0);
        assertEquals(feature.getBounds(), event.getBounds());
        assertEquals(FeatureEvent.Type.REMOVED, event.getType());
        
        // test add
        listener1.events.clear();
        listener2.events.clear();        


        store1.addFeatures(DataUtilities.collection(feature));


        assertEquals(1, listener1.events.size());
        event = listener1.getEvent(0);
        assertEquals(feature.getBounds(), event.getBounds());
        assertEquals(FeatureEvent.Type.ADDED, event.getType());
        assertEquals(1, listener2.events.size());
    }

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        store1.removeFeatures(fidFilter);


        assertEquals(1, listener1.events.size());
        assertEquals(0, listener2.events.size());


        FeatureEvent event = listener1.getEvent(0);
        assertEquals(feature.getBounds(), event.getBounds());
        assertEquals(FeatureEvent.Type.REMOVED, event.getType());


        listener1.events.clear();
        listener2.events.clear();
        
        // test that commit sends events to both listeners.


        store1.getTransaction().commit();


        assertEquals(2, listener1.events.size());
        assertEquals(2, listener2.events.size());


        event = listener2.getEvent(1);
        assertEquals(feature.getBounds(), event.getBounds());
        assertEquals(FeatureEvent.Type.COMMIT, event.getType());


        // test add 
        listener1.events.clear();
        listener2.events.clear();


        store1.addFeatures(DataUtilities.collection(feature));


        assertEquals(1, listener1.events.size());
        event = listener1.getEvent(0);
        assertEquals(feature.getBounds(), event.getBounds());
        assertEquals(FeatureEvent.Type.ADDED, event.getType());
        assertEquals(0, listener2.events.size());


        // test that rollback sends events to both listeners.
        listener1.events.clear();
        listener2.events.clear();


        store1.getTransaction().rollback();


        assertEquals(1, listener1.events.size());
        event = listener1.getEvent(0);
        assertEquals(FeatureEvent.Type.ROLLBACK, event.getType());


        assertEquals(1, listener2.events.size());
    }

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                            Geometry geometry = (Geometry) value;
                            bounds.expandToInclude( geometry.getEnvelopeInternal() );
                        }
                    }
                    // issue notificaiton
                    FeatureEvent event = new FeatureEvent(this, Type.CHANGED, bounds, preFilter );
                    state.fireFeatureEvent( event );
                }
            } finally {
                if(tx == null || tx == Transaction.AUTO_COMMIT) {
                    getDataStore().closeSafe(cx);

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                    }
                }            
                getDataStore().delete(featureType, preFilter, cx);
                if( state.hasListener() ){
                    // issue notification
                    FeatureEvent event = new FeatureEvent(this, Type.REMOVED, bounds, preFilter );
                    state.fireFeatureEvent( event );
                }
            } finally {
                if(tx == null || tx == Transaction.AUTO_COMMIT) {
                    getDataStore().closeSafe(cx);

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        // test that only the listener listening with the current transaction gets the event.
        final SimpleFeature feature = roadFeatures[0];
        store1.removeFeatures(factory.id(Collections.singleton(factory.featureId(feature.getID()))));
        assertEquals(1, listener1.events.size());
        assertEquals(0, listener2.events.size());
        FeatureEvent event = listener1.getEvent(0);
        assertEquals(feature.getBounds(), event.getBounds());
        assertEquals(FeatureEvent.FEATURES_REMOVED, event.getEventType());


        // test that commit only sends events to listener2.
        listener1.events.clear();
        listener2.events.clear();


        store1.getTransaction().commit();


        assertEquals(0, listener1.events.size());


        assertEquals(3, listener2.events.size());
        event = listener2.getEvent(0);
        assertEquals(feature.getBounds(), event.getBounds());
        assertEquals(FeatureEvent.FEATURES_REMOVED, event.getEventType());


        // test add same as modify
        listener1.events.clear();
        listener2.events.clear();


        store1.addFeatures(DataUtilities.collection(feature));


        assertEquals(1, listener1.events.size());
        event = listener1.getEvent(0);
        assertEquals(feature.getBounds(), event.getBounds());
        assertEquals(FeatureEvent.FEATURES_ADDED, event.getEventType());
        assertEquals(0, listener2.events.size());


        // test that rollback only sends events to listener1.
        listener1.events.clear();
        listener2.events.clear();


        store1.getTransaction().rollback();


        assertEquals(1, listener1.events.size());
        event = listener1.getEvent(0);
        assertNull(event.getBounds());
        assertEquals(FeatureEvent.FEATURES_CHANGED, event.getEventType());


        assertEquals(0, listener2.events.size());


        // this is how Auto_commit is supposed to work
        listener1.events.clear();
        listener2.events.clear();
        store2.addFeatures(DataUtilities.collection(feature));


        assertEquals(1, listener1.events.size());
        event = listener1.getEvent(0);
        assertEquals(feature.getBounds(), event.getBounds());
        assertEquals(FeatureEvent.FEATURES_ADDED, event.getEventType());
        assertEquals(0, listener2.events.size());
    }

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        this.source = source;
        this.listener = listener;
    }


    public void changed(FeatureEvent featureEvent) {
        FeatureEvent retyped = new FeatureEvent(source, featureEvent.getEventType(), featureEvent
                .getBounds());
        listener.changed(retyped);
    }

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        this.source = source;
        this.listener = listener;
    }


    public void changed(FeatureEvent featureEvent) {
        FeatureEvent retyped = new FeatureEvent(source, featureEvent.getEventType(), featureEvent
                .getBounds());
        listener.changed(retyped);
    }

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org.geoserver.feature.retype.WrappingFeatureListener

org.geotools.arcsde.data.ArcSDEFeatureStoreTest

org.geotools.arcsde.data.AutoCommitFeatureWriter

org.geotools.arcsde.data.TestFeatureListener

org.geotools.arcsde.data.TransactionFeatureWriter

org.geotools.data.memory.MemoryDataStoreTest

org.geotools.data.store.ContentFeatureSourceEventsTest

org.geotools.data.store.ContentState

org.geotools.data.wfs.integration.AbstractDataStoreTest

org.geotools.data.wfs.WFSFeatureStore

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