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 / DataQuery.java @ 40559
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/**
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* gvSIG. Desktop Geographic Information System.
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*
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* Copyright (C) 2007-2013 gvSIG Association.
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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 3
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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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* For any additional information, do not hesitate to contact us
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* at info AT gvsig.com, or visit our website www.gvsig.com.
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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.dal; |
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import org.gvsig.tools.persistence.Persistent; |
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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 scale 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 scale 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 2009- <a href="cordinyana@gvsig.org">C?sar Ordi?ana</a> - gvSIG team
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*/
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public interface DataQuery extends Persistent { |
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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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void setScale(double scale); |
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/**
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* Returns the scale of the data to load.
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*
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* @return the scale of the data to load
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*/
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double getScale();
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/**
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* Returns the value of an query parameter.
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*
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* @param name
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* of the parameter
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* @return the parameter value
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*/
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Object getQueryParameter(String name); |
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/**
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* Sets the value of an query parameter.
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*
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* @param name
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* of the query parameter
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* @param value
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* for the query parameter
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*/
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void setQueryParameter(String name, Object value); |
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} |