svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.plugin / org.gvsig.sqlite / org.gvsig.sqlite.provider / src / main / java / org / gvsig / sqlite / dal / functions / ST_Touches.java @ 47606
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1 | 47456 | jjdelcerro | /*
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2 | * gvSIG. Desktop Geographic Information System.
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3 | *
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4 | * Copyright (C) 2007-2020 gvSIG Association.
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5 | *
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6 | * This program is free software; you can redistribute it and/or
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7 | * modify it under the terms of the GNU General Public License
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8 | * as published by the Free Software Foundation; either version 3
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9 | * of the License, or (at your option) any later version.
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10 | *
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11 | * This program is distributed in the hope that it will be useful,
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12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 | * GNU General Public License for more details.
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15 | *
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16 | * You should have received a copy of the GNU General Public License
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17 | * along with this program. If not, see <https://www.gnu.org/licenses/>.
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18 | *
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19 | * For any additional information, do not hesitate to contact us
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20 | * at info AT gvsig.com, or visit our website www.gvsig.com.
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21 | */
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22 | package org.gvsig.sqlite.dal.functions; |
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23 | |||
24 | import java.sql.SQLException; |
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25 | import org.gvsig.fmap.geom.Geometry; |
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26 | import org.gvsig.sqlite.dal.geopackage.GeopackageGeometryParser; |
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27 | import org.gvsig.sqlite.dal.geopackage.GeopackageUtils; |
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28 | import org.sqlite.SQLiteConnection; |
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29 | |||
30 | /**
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31 | *
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32 | * @author gvSIG Team
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33 | */
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34 | @SuppressWarnings("UseSpecificCatch") |
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35 | 47583 | fdiaz | public class ST_Touches extends Functions.AbstractFunction { |
36 | 47456 | jjdelcerro | |
37 | 47583 | fdiaz | public ST_Touches(SQLiteConnection conn) {
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38 | super("ST_Touches", conn); |
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39 | 47456 | jjdelcerro | } |
40 | |||
41 | @Override
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42 | protected void xFunc() throws SQLException { |
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43 | try {
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44 | byte[] bytes1 = value_blob(0); |
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45 | if (bytes1 == null) { |
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46 | this.result();
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47 | return;
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48 | } |
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49 | byte[] bytes2 = value_blob(1); |
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50 | if (bytes2 == null) { |
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51 | this.result();
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52 | return;
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53 | } |
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54 | SQLiteConnection conn = this.getConnection();
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55 | GeopackageGeometryParser parser = GeopackageUtils.createGeometryParser(); |
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56 | Geometry geom1 = parser.parseToGeometry(conn,bytes1); |
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57 | if (geom1 == null) { |
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58 | this.result();
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59 | return;
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60 | } |
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61 | Geometry geom2 = parser.parseToGeometry(conn, bytes2); |
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62 | if (geom2 == null) { |
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63 | this.result();
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64 | return;
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65 | } |
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66 | 47583 | fdiaz | this.result(geom1.touches(geom2) ? 1 : 0); |
67 | 47456 | jjdelcerro | } catch (Throwable ex) { |
68 | 47583 | fdiaz | throw new SQLException("Can't evaluate if the first geometry touches the second", ex); |
69 | 47456 | jjdelcerro | } |
70 | } |
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71 | |||
72 | } |