svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.compat.cdc / org.gvsig.fmap.dal / org.gvsig.fmap.dal.db / org.gvsig.fmap.dal.db.jdbc / src / main / java / org / gvsig / fmap / dal / store / jdbc2 / spi / expressionbuilder / formatters / Exists.java @ 46543
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| 1 | 45065 | 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.fmap.dal.store.jdbc2.spi.expressionbuilder.formatters; |
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| 25 | 44198 | jjdelcerro | |
| 26 | import org.apache.commons.lang3.StringUtils; |
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| 27 | import org.gvsig.expressionevaluator.ExpressionBuilder; |
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| 28 | import org.gvsig.expressionevaluator.ExpressionBuilder.Function; |
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| 29 | import org.gvsig.expressionevaluator.ExpressionBuilder.Value; |
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| 30 | import org.gvsig.expressionevaluator.Formatter; |
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| 31 | 44748 | jjdelcerro | import static org.gvsig.fmap.dal.DataManager.FUNCTION_EXISTS; |
| 32 | 44198 | jjdelcerro | |
| 33 | /**
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| 34 | *
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| 35 | * @author jjdelcerro
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| 36 | */
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| 37 | 44748 | jjdelcerro | public class Exists implements Formatter<Value> { |
| 38 | 44198 | jjdelcerro | |
| 39 | private final Formatter<Value> formatter; |
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| 40 | |||
| 41 | 44764 | jjdelcerro | public Exists(Formatter<Value> formatter) { |
| 42 | 44198 | jjdelcerro | this.formatter = formatter;
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| 43 | } |
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| 44 | @Override
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| 45 | public boolean canApply(ExpressionBuilder.Value value) { |
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| 46 | if (value instanceof ExpressionBuilder.Function) { |
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| 47 | 44748 | jjdelcerro | return StringUtils.equalsIgnoreCase(FUNCTION_EXISTS, ((Function) value).name());
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| 48 | 44198 | jjdelcerro | } |
| 49 | return false; |
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| 50 | } |
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| 51 | |||
| 52 | @Override
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| 53 | 44748 | jjdelcerro | public String format(Value function0) { |
| 54 | Function function = (Function) function0; |
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| 55 | 44750 | jjdelcerro | Value exp = function.parameters().get(0);
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| 56 | 44748 | jjdelcerro | return "EXISTS("+exp.toString(formatter)+")"; |
| 57 | 44198 | jjdelcerro | } |
| 58 | |||
| 59 | } |