svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.library / org.gvsig.expressionevaluator / org.gvsig.expressionevaluator.lib / org.gvsig.expressionevaluator.lib.impl / src / main / java / org / gvsig / integration / EvaluatorDataAdapter.java @ 43521
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1 | 43521 | jjdelcerro | |
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2 | package org.gvsig.integration; |
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3 | |||
4 | import java.util.Iterator; |
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5 | import org.gvsig.expressionevaluator.Function; |
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6 | import org.gvsig.expressionevaluator.SymbolTable; |
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7 | import org.gvsig.tools.evaluator.EvaluatorData; |
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8 | |||
9 | |||
10 | public class EvaluatorDataAdapter implements SymbolTable { |
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11 | |||
12 | private EvaluatorData data;
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13 | private final SymbolTable symbolTable; |
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14 | |||
15 | EvaluatorDataAdapter(SymbolTable symbolTable) { |
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16 | this.symbolTable = symbolTable;
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17 | } |
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18 | |||
19 | public void setData(EvaluatorData data) { |
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20 | this.data = data;
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21 | } |
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22 | |||
23 | @Override
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24 | public Function function(String name) { |
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25 | return symbolTable.function(name);
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26 | } |
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27 | |||
28 | @Override
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29 | public boolean exists(String name) { |
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30 | if( data.hasDataValue(name) ) {
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31 | return true; |
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32 | } |
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33 | if( data.hasContextValue(name) ) {
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34 | return true; |
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35 | } |
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36 | return symbolTable.exists(name);
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37 | } |
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38 | |||
39 | @Override
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40 | public Object value(String name) { |
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41 | if( data.hasDataValue(name) ) {
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42 | return data.getDataValue(name);
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43 | } |
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44 | if( data.hasContextValue(name) ) {
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45 | return data.getContextValue(name);
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46 | } |
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47 | return symbolTable.value(name);
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48 | } |
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49 | |||
50 | @Override
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51 | public Iterator<String> itervars() { |
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52 | return null; |
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53 | } |
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54 | |||
55 | @Override
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56 | public Iterator<Function> iterfuncs() { |
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57 | return symbolTable.iterfuncs();
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58 | } |
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59 | |||
60 | @Override
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61 | public Iterator<Function> iterator() { |
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62 | return symbolTable.iterfuncs();
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63 | } |
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64 | |||
65 | } |