svn-gvsig-desktop / branches / v2_0_0_prep / libraries / libFMap_data / src / org / gvsig / fmap / data / DataQuery.java @ 23764
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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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private double scale; |
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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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return scale;
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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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public void setScale(double scale) { |
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this.scale = scale;
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} |
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/**
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* Returns the value of an attribute.
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*
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* @param name
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* of the attribute
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* @return the attribute value
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*/
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public Object getAttribute(String name) { |
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return attributes.get(name);
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} |
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/**
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* Sets the value of an attribute.
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*
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* @param name
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* of the attribute
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* @param value
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* for the attribute
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*/
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public void setAttribute(String name, Object value) { |
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attributes.put(name, value); |
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} |
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} |