svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.library / org.gvsig.tools.evaluator.sqljep / src / main / java / org / gvsig / tools / evaluator / sqljep / function / Boundary.java @ 40560
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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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/* 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 IVER T.I {{Task}}
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*/
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/**
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*
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*/
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package org.gvsig.tools.evaluator.sqljep.function; |
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import org.gvsig.fmap.geom.Geometry; |
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import org.medfoster.sqljep.ASTFunNode; |
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import org.medfoster.sqljep.JepRuntime; |
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import org.medfoster.sqljep.ParseException; |
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import org.medfoster.sqljep.function.PostfixCommand; |
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/**
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* @author jmvivo
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*
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*/
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public class Boundary extends PostfixCommand { |
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public static final String NAME = "boundary"; |
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final public int getNumberOfParameters() { |
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return 1; |
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} |
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/* (non-Javadoc)
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* @see org.medfoster.sqljep.function.PostfixCommand#evaluate(org.medfoster.sqljep.ASTFunNode, org.medfoster.sqljep.JepRuntime)
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*/
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public void evaluate(ASTFunNode node, JepRuntime runtime) |
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throws ParseException { |
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node.childrenAccept(runtime.ev, null);
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Comparable param1 = (Comparable)runtime.stack.pop(); |
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if (param1 == null) { |
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runtime.stack.push(null);
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} else{
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runtime.stack.push(Boundary.boundary((Geometry) param1)); |
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} |
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} |
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private static Geometry boundary(Geometry g) |
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throws ParseException { |
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return g.getEnvelope().getGeometry();
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} |
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} |
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