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.h2 / src / main / java / org / gvsig / fmap / dal / store / h2 / expressionbuilderformatter / IsNotNull.java @ 44198
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1 | 44198 | jjdelcerro | package org.gvsig.fmap.dal.store.h2.expressionbuilderformatter; |
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2 | |||
3 | import java.text.MessageFormat; |
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4 | import java.util.List; |
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5 | import org.apache.commons.lang3.StringUtils; |
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6 | import org.gvsig.expressionevaluator.Code.Constant; |
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7 | import org.gvsig.expressionevaluator.ExpressionBuilder.Function; |
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8 | import static org.gvsig.expressionevaluator.ExpressionBuilder.OPERATOR_IS; |
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9 | import static org.gvsig.expressionevaluator.ExpressionBuilder.OPERATOR_NOT; |
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10 | import org.gvsig.expressionevaluator.ExpressionBuilder.Value; |
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11 | import org.gvsig.expressionevaluator.Formatter; |
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12 | import org.gvsig.fmap.dal.SQLBuilder; |
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13 | |||
14 | /**
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15 | *
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16 | * @author jjdelcerro
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17 | */
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18 | class IsNotNull implements Formatter<Value> { |
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19 | |||
20 | private final Formatter<Value> formatter; |
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21 | private final SQLBuilder builder; |
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22 | |||
23 | public IsNotNull(SQLBuilder builder, Formatter<Value> formatter) { |
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24 | this.builder = builder;
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25 | this.formatter = formatter;
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26 | } |
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27 | |||
28 | @Override
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29 | public boolean canApply(Value value_not) { |
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30 | if (value_not instanceof Function) { |
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31 | // NOT( IS( p1, NULL) )
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32 | if( StringUtils.equalsIgnoreCase(OPERATOR_NOT, ((Function) value_not).name()) ) {
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33 | List<Value> parameters = ((Function) value_not).parameters();
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34 | Value value_is = parameters.get(0);
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35 | if( value_is instanceof Function && StringUtils.equalsIgnoreCase(OPERATOR_IS, ((Function)value_is).name()) ) { |
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36 | List<Value> parameters_is = ((Function)value_is).parameters();
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37 | Value is_p2 = parameters_is.get(1);
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38 | if( is_p2 instanceof Constant && ((Constant)is_p2).value()==null ) { |
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39 | return true; |
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40 | } |
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41 | } |
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42 | } |
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43 | } |
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44 | return false; |
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45 | } |
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46 | |||
47 | @Override
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48 | public String format(Value value_not) { |
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49 | // NOT( IS( p1, NULL) )
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50 | |||
51 | List<Value> parameters = ((Function) value_not).parameters();
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52 | Value value_is = parameters.get(0);
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53 | List<Value> parameters_is = ((Function)value_is).parameters();
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54 | Value is_p1 = parameters_is.get(0);
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55 | String r = MessageFormat.format( |
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56 | "( ({0}) IS NOT NULL )",
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57 | is_p1.toString(formatter) |
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58 | ); |
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59 | return r;
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60 | } |
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61 | |||
62 | } |