svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.compat.cdc / org.gvsig.fmap.dal / org.gvsig.fmap.dal.impl / src / main / java / org / gvsig / expressionevaluator / impl / function / dataaccess / SetRowTagFunction.java @ 47777
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1 | 44738 | 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, write to the Free Software
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18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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19 | * MA 02110-1301, USA.
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20 | *
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21 | * For any additional information, do not hesitate to contact us
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22 | * at info AT gvsig.com, or visit our website www.gvsig.com.
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23 | */
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24 | package org.gvsig.expressionevaluator.impl.function.dataaccess; |
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25 | |||
26 | import org.apache.commons.lang3.Range; |
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27 | import org.gvsig.expressionevaluator.Interpreter; |
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28 | import org.gvsig.expressionevaluator.impl.DALFunctions; |
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29 | 44858 | jjdelcerro | import org.gvsig.fmap.dal.DataManager; |
30 | import org.gvsig.fmap.dal.feature.Feature; |
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31 | 44738 | jjdelcerro | |
32 | /**
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33 | *
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34 | * @author jjdelcerro
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35 | */
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36 | 44858 | jjdelcerro | public class SetRowTagFunction extends AbstractFeatureFunction { |
37 | 44738 | jjdelcerro | |
38 | 44858 | jjdelcerro | public SetRowTagFunction() {
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39 | 44896 | jjdelcerro | super( DALFunctions.GROUP_DATA_ACCESS,
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40 | 44858 | jjdelcerro | DataManager.FUNCTION_SET_ROW_TAG, |
41 | Range.is(1),
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42 | 44925 | jjdelcerro | "Assign a value associated with a label of the current row. " +
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43 | "This value is not persistent. The function return the " +
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44 | "value assigned to the tag.\n" +
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45 | "If the function is used outer a table filter it will have no any effect.",
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46 | 44858 | jjdelcerro | DataManager.FUNCTION_SET_ROW_TAG+"({{name}}, value)",
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47 | null,
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48 | "Object",
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49 | false
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50 | 44738 | jjdelcerro | ); |
51 | } |
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52 | |||
53 | @Override
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54 | public boolean allowConstantFolding() { |
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55 | return false; |
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56 | } |
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57 | |||
58 | @Override
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59 | public boolean useArgumentsInsteadObjects() { |
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60 | 44858 | jjdelcerro | return false; |
61 | 44738 | jjdelcerro | } |
62 | 44858 | jjdelcerro | |
63 | 44738 | jjdelcerro | @Override
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64 | public Object call(Interpreter interpreter, Object[] args) throws Exception { |
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65 | 44858 | jjdelcerro | Feature f = this.current_row(interpreter);
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66 | if( f!=null ) { |
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67 | String name = getStr(args,0); |
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68 | f.setExtraValue(name, args[0]);
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69 | 44738 | jjdelcerro | } |
70 | 44858 | jjdelcerro | return args[0]; |
71 | 44738 | jjdelcerro | } |
72 | } |