svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.compat.cdc / org.gvsig.fmap.dal / org.gvsig.fmap.dal.api / src / main / java / org / gvsig / fmap / dal / feature / FeatureReferenceSelection.java @ 40435
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/* gvSIG. Geographic Information System of the Valencian Government
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*
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* Copyright (C) 2007-2008 Infrastructures and Transports Department
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* of the Valencian Government (CIT)
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301, USA.
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*
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*/
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/*
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* AUTHORS (In addition to CIT):
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* 2008 {DiSiD Technologies} {Implement data selection}
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*/
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package org.gvsig.fmap.dal.feature; |
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import java.util.Iterator; |
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import org.gvsig.fmap.dal.DataSelection; |
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import org.gvsig.fmap.dal.exception.DataException; |
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import org.gvsig.tools.observer.ComplexObservable; |
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import org.gvsig.tools.observer.Observer; |
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import org.gvsig.tools.observer.WeakReferencingObservable; |
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import org.gvsig.tools.persistence.Persistent; |
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/**
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* Interface to manage selection of objects from an undetermined set. Allows to
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* add and remove values from the selection, as well as reversing the selection.
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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 interface FeatureReferenceSelection extends DataSelection, Observer, |
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WeakReferencingObservable, ComplexObservable, Persistent { |
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/**
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* Adds a feature to the selection.
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*
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* @param reference
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* the selected feature reference
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* @return true if the feature was not selected before selecting it
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*/
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boolean select(FeatureReference reference);
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/**
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* Removes a feature from the selection.
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*
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* @param reference
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* the deselected feature reference
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* @return true if the feature was selected before deselecting it
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*/
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boolean deselect(FeatureReference reference);
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/**
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* Selects all values.
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*
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* @throws DataException
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* if there is an error selecting all values
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*/
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void selectAll() throws DataException; |
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/**
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* Deselects all values.
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*
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* @throws DataException
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* if there is an error deselecting all values
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*/
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void deselectAll() throws DataException; |
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/**
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* Returns if a feature is selected.
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*
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* @param reference
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* to check
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* @return if it is selected
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*/
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boolean isSelected(FeatureReference reference);
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/**
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* Reverses the selection. Currently selected objects will become the not
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* selected ones, so any other object will be a selected one.
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*/
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void reverse();
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/**
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* Returns the number of selected values.
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*
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* @return the number of selected values
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*/
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long getSelectedCount();
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/**
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* Returns an unmodifiable Iterator of selected feature references.
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*
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* @return the iterator of selected feature references
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*/
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Iterator referenceIterator();
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} |