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 / numeric / SignFunction.java @ 43521
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1 | 43512 | jjdelcerro | package org.gvsig.expressionevaluator.impl.function.numeric; |
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2 | |||
3 | import org.apache.commons.lang3.Range; |
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4 | 43521 | jjdelcerro | import org.gvsig.expressionevaluator.Interpreter; |
5 | 43512 | jjdelcerro | import org.gvsig.expressionevaluator.spi.AbstractFunction; |
6 | |||
7 | public class SignFunction extends AbstractFunction { |
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8 | |||
9 | public SignFunction() {
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10 | super("Numeric", "SIGN", Range.is(1)); |
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11 | } |
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12 | |||
13 | @Override
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14 | 43521 | jjdelcerro | public Object call(Interpreter interpreter, Object[] args) { |
15 | 43512 | jjdelcerro | Object value = args[0]; |
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17 | if( value instanceof Float ) { |
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18 | float r = Math.signum(((Number) value).floatValue()); |
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19 | return r;
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20 | } |
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21 | double r = Math.signum(getDouble(args, 0)); |
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22 | return r;
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23 | } |
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24 | } |