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 / expressionevaluator / impl / function / operator / SubstOperator.java @ 44009
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1 | 43512 | jjdelcerro | package org.gvsig.expressionevaluator.impl.function.operator; |
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2 | |||
3 | 43521 | jjdelcerro | import org.gvsig.expressionevaluator.Function; |
4 | import org.gvsig.expressionevaluator.Interpreter; |
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5 | |||
6 | 43512 | jjdelcerro | public class SubstOperator extends AbstractBinaryOperator { |
7 | |||
8 | public SubstOperator() {
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9 | 43521 | jjdelcerro | super(Function.GROUP_NUMERIC,"-"); |
10 | 43512 | jjdelcerro | } |
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12 | @Override
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13 | 44009 | jjdelcerro | public boolean allowConstantFolding() { |
14 | return true; |
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15 | } |
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16 | |||
17 | @Override
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18 | 43521 | jjdelcerro | public Object call(Interpreter interpreter, Object op1, Object op2) { |
19 | 43512 | jjdelcerro | int type = this.getType(op1, op2); |
20 | if( (type & TYPE_DOUBLE) == TYPE_DOUBLE ) {
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21 | double value = ((Number) op1).doubleValue() - ((Number) op2).doubleValue(); |
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22 | return value;
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23 | } |
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24 | if( (type & TYPE_FLOAT) == TYPE_FLOAT ) {
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25 | double value = ((Number) op1).floatValue() - ((Number) op2).floatValue(); |
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26 | return value;
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27 | } |
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28 | if( (type & TYPE_LONG) == TYPE_LONG ) {
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29 | long value = ((Number) op1).longValue() - ((Number) op2).longValue(); |
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30 | return value;
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31 | } |
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32 | if( (type & TYPE_INT) == TYPE_INT ) {
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33 | int value = ((Number) op1).intValue() - ((Number) op2).intValue(); |
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34 | return value;
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35 | } |
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36 | throw new IllegalArgumentException("Types not allowed in '"+name()+"' operand."); |
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37 | } |
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38 | |||
39 | } |