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import org.gvsig.fmap.dal.DataStoreNotification;
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import org.gvsig.fmap.dal.exception.DataException;
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import org.gvsig.fmap.dal.exception.DataRuntimeException;
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import org.gvsig.fmap.dal.feature.EditableFeature;
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import org.gvsig.fmap.dal.feature.Feature;
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import org.gvsig.fmap.dal.feature.FeatureReference;
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/**
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* Default implementation of the FeatureSelection interface. Internally, only
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* FeatureReference values are stored.
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*
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*
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* This implementation performs better if used with the selection related
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* methods: select, deselect and isSelected ones.
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*
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*
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* @author <a href="mailto:cordin@disid.com">C?sar Ordi?ana</a>
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*/
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public class DefaultFeatureSelection extends DefaultFeatureReferenceSelection
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/**
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* Creates a DefaultFeatureSelection, with a FeatureStore.
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*
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*
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* @param featureStore
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* the FeatureStore to load Features from
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* @throws DataException
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/**
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* Creates a new Selection with the total size of Features from which the
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* selection will be performed.
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*
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*
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* @param featureStore
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* the FeatureStore of the selected FeatureReferences
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* @param helper
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boolean inComplex = false;
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if (undoable && getFeatureStore().isEditing()
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&& !getCommands().inComplex()) {
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getCommands().startComplex("_selectionSelectFeatureSet");
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inComplex = getCommands().inComplex();
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}
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/**
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* Returns the list of selected values, or the deselected ones if the
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* selection has been reversed.
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*
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*
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* WARN: not very good performance implementation.
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*/
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public DisposableIterator iterator(long index) {
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/**
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* Returns the list of selected values, or the deselected ones if the
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* selection has been reversed.
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*
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*
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* WARN: not really a fast implementation.
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*/
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public DisposableIterator fastIterator() {
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/**
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* Returns the list of selected values, or the deselected ones if the
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* selection has been reversed.
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*
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*
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* WARN: not really a fast implementation.
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*/
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public DisposableIterator fastIterator(long index) {
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/**
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* Facade over a Iterator of FeatureReferences, to return Features instead.
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*
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*
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* @author <a href="mailto:cordin@disid.com">C?sar Ordi?ana</a>
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*/
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private class FeatureIteratorFacade implements DisposableIterator {
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/**
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* Returns the next FeatureReference.
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*
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*
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* @return the next FeatureReference
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*/
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public FeatureReference nextFeatureReference() {
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/**
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* Facade over a Iterator of FeatureReferences, to return Features instead,
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* when the Selection is reversed
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*
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*
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* @author <a href="mailto:cordin@disid.com">C?sar Ordi?ana</a>
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*/
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private class ReversedFeatureIteratorFacade implements DisposableIterator {
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private DisposableIterator iterator;
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private Feature nextFeature = null;
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private Feature nextFeature = null;
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private Feature currentFeature = null;
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private FeatureSet featureSet;
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}
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public Object next() {
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Feature tmp = nextFeature.getCopy();
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currentFeature = nextFeature.getCopy();
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positionInNextElement();
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return tmp;
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return currentFeature ;
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}
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public void remove() {
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iterator.remove();
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try {
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featureSet.delete(currentFeature);
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} catch (DataException e) {
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throw new RemoveFromFeatureSelectionException(e);
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}
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}
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public class RemoveFromFeatureSelectionException extends DataRuntimeException {
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/**
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*
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*/
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private static final long serialVersionUID = 2636692469445838928L;
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private final static String MESSAGE_FORMAT = "Can't remove feature from reversed selection.";
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private final static String MESSAGE_KEY = "_RemoveFromFeatureSelectionException";
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public RemoveFromFeatureSelectionException(Throwable cause) {
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super(MESSAGE_FORMAT, cause, MESSAGE_KEY, serialVersionUID);
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//setValue("store", store);
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}
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}
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private void positionInNextElement() {
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nextFeature = null;
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while (iterator.hasNext()) {
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/*
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* (non-Javadoc)
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*
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*
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* @seeorg.gvsig.fmap.dal.feature.impl.DefaultFeatureReferenceSelection#
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* loadFromState(org.gvsig.tools.persistence.PersistentState)
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*/
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