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branches/v2_0_0_prep/libraries/libFMap_data/src/org/gvsig/fmap/data/DataQuery.java
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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 Gobernment (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}  {Create Parameter object to define queries}
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 */
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package org.gvsig.fmap.data;
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import java.util.HashMap;
......
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import java.util.Map;
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/**
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 * Defines the properties of a collection of data, as a result of a query
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 * through a DataStore.
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 * <p>
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 * The scala parameter can be used by the DataStore as a hint about the quality
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 * or resolution of the data needed to view or operate with the data returned.
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 * As an example, it may use the scala to return only a representative subset of
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 * the data, or maybe to return Data with less detail, like a point or a line
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 * instead of a polygon.
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 * </p>
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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 DataQuery {
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......
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    private Map attributes = new HashMap();
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    /**
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     * Empty constructor.
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     */
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    public DataQuery() {
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        super();
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    }
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    /**
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     * Constructor with an scale.
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     * 
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     * @param scale
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     *            the scale for the data
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     */
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    public DataQuery(double scale) {
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        super();
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        this.scale = scale;
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    }
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    /**
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     * Returns the scale.
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     * 
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     * @return the scale
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     */
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    public double getScale() {
......
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    }
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    /**
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     * Sets the scale.
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     * 
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     * @param scale
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     *            the scale to set
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     */

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