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 / Reverseinstr.java @ 47456
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/*
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* gvSIG. Desktop Geographic Information System.
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*
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* Copyright (C) 2007-2020 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, see <https://www.gnu.org/licenses/>.
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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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package org.gvsig.sqlite.dal.functions; |
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import java.sql.SQLException; |
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import org.sqlite.SQLiteConnection; |
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/**
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*
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* @author gvSIG Team
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*/
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public class Reverseinstr extends Functions.AbstractFunction { |
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public Reverseinstr(SQLiteConnection conn) {
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super("REVERSEINSTR", conn); |
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} |
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@Override
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protected void xFunc() throws SQLException { |
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String string = value_text(0); |
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if( string==null ) { |
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this.result();
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return;
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} |
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String substring = value_text(1); |
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if( substring==null ) { |
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this.result();
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return;
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} |
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int n = string.lastIndexOf(substring);
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if (n < 0) { |
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this.result();
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} else {
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this.result(n+1); |
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} |
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} |
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} |