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 / LogFunction.java @ 43983
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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 LogFunction extends AbstractFunction { |
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| 8 | |||
| 9 | public LogFunction() {
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| 10 | super("Numeric", "LOG", Range.is(1)); |
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| 11 | this.addAlias("LN"); |
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| 12 | } |
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| 13 | |||
| 14 | @Override
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| 15 | 43521 | jjdelcerro | public Object call(Interpreter interpreter, Object[] args) { |
| 16 | 43512 | jjdelcerro | double r = Math.log(getDouble(args, 0)); |
| 17 | return r;
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| 18 | } |
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| 19 | } |